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Post by Crunch41 on Jul 7, 2019 13:21:57 GMT -5
AJ1013 Tucson Hottest, Coldest, Wettest days.
Hot Tucson Hot Tucson is not very interesting. Hottest Days is a hot desert climate. Diurnal ranges are high so nights are cool most of the year and frost is possible in winter. It sometimes rains in summer but is dry the rest of the year. The closest climate twin is somewhere in the middle east.  Hottest nights is another hot desert climate but with moderate rainfall in winter. Frost is unheard of and nights are over 80F for most of the summer. The closest climate twin is the Dead Sea, if Sedom had wetter winters it would be a good match. en.wikipedia.org/wiki/Dead_Sea.  Highest mean temperatures is a hybrid of the two. Hot days and nights in summer, still warm in winter with no frost. July is the only month with regular rainfall.  Cold TucsonLowest Max temperatures is still "subtropical" but gets regular snow and has never reached 10C in January. There is a shorter wet season in February-April and a long one from June to October. Summer is very humid and stable with thunderstorms almost every day, but 30C is rare. Dalhousie and highland northern India is vaguely similar.  Lowest min temperatures is a desert 11 months of the year with a short, highly variable monsoon in August. High diurnals, cool nights, and sunshine are common all year. Temperatures would fit highland Nevada but rainfall does not.  Five days are responsible for almost all of the yearly rainfall in this wiki box. August 1st 1935, 88/64 2.88" August 3rd 1955, 89/63 2.28" August 8th 1895, 94/61 1.40" August 5th 1916, 98/64 1.12" August 22nd 1895, 84/62 1.00" Lowest mean temperatures is similar to the lowest max, but with drier winter and spring. Summer days are generally warmer with higher diurnals. The July/August monsoon is still extreme. January average is 32.5F so it's borderline Dfa/Dwa.  Wet Tucson Wettest days. Snow is possible, 100s are possible, and there is still a drying trend in spring. This would be a Cfa climate I guess.  8 days have seen 100F and rain. August 11, 1995 reached 101/69 with 2.07" rain (38.3/20.6 52.6mm) and a trace of snow-hail? Snowiest days. For days without any measurable snow recorded, the formula I used picks the first day with recorded data, so summer is a generic summer in the 1890s. Trace snowfall is ignored. This is basically Tucson with wet, snowy winters. Average highs are still in the high 50s in winter because only half of winter days have recorded snow. The average for days with recorded snow was 50.8/41.4/31.6 (10.4/5.2/-0.2). This is for any day with snow, not just January. Days without snow average around 70/50. Also notice how high the record lows are. Tucson usually gets snow at or above freezing. Most climates can't do that.  Other snowy days stats: 8 days have snowed with a high over 60F. The largest snow was 64/33 (17.8/0.6) with 3.8" (9.7cm) on March 3rd, 1976. Two days have seen snow with a minimum in the 40s! The largest was 48/40 (8.9/4.4) with 1.0" (2.5cm) on January 13, 1937. The other was only 0.1" The older days of Tucson used to see large diurnal ranges. There are 112 days with a 50F diurnal range, 0.25% of all days, but none since 1938. The largest diurnal since 2010 was 45F, an 81/36 day on March 4th, 2012 and 84/39 on April 11, 2011. The absolute largest diurnal was 63F, an 87/24 day (30.6/-4.4) on January 3rd, 1896. i.imgur.com/mkbLCML.pngThe lowest was 3F, done 6 times. All were winter days with rain. The most recent was January 6, 1939 (54/51F with 0.32")
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Post by AJ1013 on Jul 7, 2019 15:33:18 GMT -5
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Post by Steelernation on Jul 7, 2019 15:50:28 GMT -5
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Post by Crunch41 on Jul 7, 2019 16:38:48 GMT -5
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Post by Crunch41 on Jul 8, 2019 0:54:45 GMT -5
AJ1013 Here's Miami! The trends here are a lot different than the Midwest US. Anyone familiar with Miami enough to say why July is drier than other summer months on some of these boxes? If I had to live in one of these, I'd pick Lowest Minimums. Cold MiamiLowest max temperatures is a monsoonal Cwa climate. Could be a tropical monsoon climate at moderate altitude, possibly in India. Summer reminds me of Cherrapunji. Occasional winter frost and nothing over 84F/29C, ever. Extremely stable summer temperatures with records only 2 or 3 degrees from average. Winter is cool with highs in the 50s. This climate could see snow every few years I think.  The large drop in rainfall in July is interesting. Why is July not as wet as the rest of summer? Lowest minimums is a monsoonal Cwa, but the dry season is very strong and the wet season is much shorter. Summer days are much hotter with average highs of 88F/31C and winter highs are now around 60F/16C. Despite the cooler nights, winter is too dry to see snow regularly.  Lowest mean has a longer wet season but not as long as the first box. Summer is extremely consistent again.  The wet season is May-October based on max, June-September on min, and June-October on mean. In all 3 cases, the wet season ends quickly and the next dry month has less than 1" rainfall. What causes that? Also interesting is that the first box, lowest max, has moderate rainfall in spring. So in spring, it seems that the coldest days and coldest nights are dry, but sometimes rain can cause a very low max temperature. In winter, cold days are almost always dry. In summer and fall, "cold" days are usually very wet, probably because the sun doesn't come out and the rain cools everything down a bit. Hot Miami Highest max temperatures is a Tropical Wet and Dry (Aw) climate with the wet season in "summer". There is no cool season but occasionally winter nights can reach into the 50s (below 15C). The wettest month is September.  Highest min temperatures is a hot desert (Bwh). The record low is 72F/22C and there is almost no variability in temperatures. Rainfall is sporadic and heavy rainfall is rare but possible. Some real-world climates come close to this, such as Bosaso.  Highest mean temperatures is also Bwh, but not quite as dry. The record low is now a chilly 68F/20C and there is slightly more rain and temperature variation.  Wet Miami is a tropical rainforest (Af). Again, July is the driest summer month. Why does July not get as big of rain totals as the other summer months?. Also, 1213" is 101 FEET of rain. I think Miami would be underwater.  Miami has never recorded measurable snow, so I can't do a snowy Miami box. Oh, I forgot a few things. Largest diurnal ranges - all from a long time ago. All 5 days were dry.
41F on January 26, 1905: 70/29F 21.1/-1.7C
41F on March 5, 1902: 85/44F 29.4/6.7C
39F on January 15, 1904: 75/36F 23.9/2.2C
39F on November 29, 1903: 78/39F 25.6/3.9C
37F on February 14, 1899: 66/29F 18.9/-1.7C The largest chance since 2000 was 33F on January 7, 2017. 87/54F (31/12C) Smallest Diurnal ranges: 17 days have recorded a diurnal range of 2 degrees. The coldest was 64/62F 17.8/16.7C on February 19, 1973. 0.3"/7.6mm of rainfall.
The warmest was 82/80F 27.8/26.7Con August 5, 1906. Dry. Four had measurable rainfall. The wettest was 3.48"/88.4mm on October 30, 1969. 77/75F 25.0/23.9C Wettest days: Four days have seen 12 inches of rainfall. April 16, 1942 had 12.58" 319.5mm, 75/65F 23.9/18.3C
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Post by Cadeau on Aug 13, 2019 13:40:26 GMT -5
July 2019 recorded as the hottest month for the capital city of Iceland since the observatory began in 1949.  |
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Post by Nidaros on Aug 13, 2019 14:55:33 GMT -5
Interesting!
The warmest July ever in Reykjavik at 64 N is 2.5C colder than the warmest July in Tromsø (mean 15.9C) at nearly 70 N. And that is recorded at the station 100 m asl in Tromsø.
I expect the coldest January ever to be much colder in Tromsø, but not sure it would be much colder in the same latitude in coastal Norway, 64N.
Edit: Brønnøysund (65N) has warmest month mean recorded 18C and coldest -6.7C (Feb 1966). From what I can find, Reykjavik's coldest month is not that cold, -3.1C mean, if that is correct..?
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Post by Crunch41 on Aug 18, 2019 21:46:52 GMT -5
I did a cherrypick Madison a few years ago on C-D with months 2000-present, but it must have been old because all months were 2009 or earlier. This version is updated with two new months: February 2015 and November 2014. I rate it A+. February 2015 is colder than the previous February I had, but much drier with 1/2 the snow and 1/3 the precipitation. Winter is too dry now, but it would still have a decent snow cover. Three months like December would be ideal, but I have to go back before 2000 to find a January and February like that. If I went back to the start of the data, this would take too long. February 2014 and 2019 had decent averages and snow, but both had too much rain. November 2014 is colder, snowier, and more interesting than the last November I had (41/28F 5/-2C with 4"/9cm snow). There were a lot of warm Novembers in the 2000s. November 2018 was almost as cold, but with hardly any snow.
I had May 2002, the coldest May since 2000 with 64/43 average, but I switched to May 2011 for a bit warmer weather. Sunshine is the average sun from 1961-1990 because there is no current data. This box should be similar or slightly cloudier.
 Dew point, Heat Index, and Wind Chill. I'd prefer a lower dew point in July, but the month I picked had good storms. July 2009 has good temperatures but that was a snoozefest with a max of just 82F/28C all month and a lot of dry, cloudy days. 
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Post by Crunch41 on Aug 19, 2019 11:09:56 GMT -5
Another box I started a while ago, two-season Madison. The goal is to make two seasons that are as flat as possible, and I got very close to it. April and October don't quite fit, but Madison has enough years to make every other month the same, usually to the tenth of a degree. January, May, and October are the coldest/warmest on record. December, April, and July are top 3. The coldest April is only 0.1F colder, and lacks snow data. January and December have no snowfall data, so I made it up. Other months like June have several choices exactly at 66.6, so I picked one.
My winters would be terrible if the average mean was 33 degrees, look at how pathetic the snow totals are compared to the rainfall. Remember I made up snow numbers for December and January, so the snow total might be even lower. Also the yearly record low was in March and the snowiest month was April.  January 1880, February 1998, March 1919, April 2018, May 1881, June 1966, July 1891, August 1965, September 1906, October 1925, November 1978, December 1881. I did another version that has more exciting summer months. It looks more jumbled on the wiki box due to the variability. May 1934 reached a record 101 degrees, June was very wet, and July was special for how boring it was. It was the coldest July ever, with half the normal rainfall and nothing above 82F all month. August doesn't have anything exactly at 65.7F but the other four months do. September has good variety too, with a range from 93 to 38F.
January 1880 February 1998 March 1919 April 2018 May 1934 June 2000 July 2009 August 1997 September 1948 October 1925 November 1978 December 1881.
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Post by Moron on Apr 15, 2020 23:07:15 GMT -5
Wettest Perth Metro  January 2000 February 2017 March 2013 April 2008 May 2005 June 2005 July 1995 August 2018 September 2013 October 1999 November 2012 December 2011 Sun Hours available 2001 onwards I believe, so that's why the older years have no data. |
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Post by Steelernation on Apr 16, 2020 1:11:52 GMT -5
Crunch41 can you do one those hottest/coldest weather boxes that you’ve done for Fort Collins?
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Post by Speagles84 on Apr 16, 2020 14:12:43 GMT -5
YUM! Coldest Months at NWS Pittsburgh (1953-2020)  Months: January 1977 February 1979 March 1960 April 1961 May 1997 June 1982 July 1976 August 1976 September 1962 October 1976 November 1976 December 1989 1976 Must have been COLD AS FUCK. 4/12 months were from that year. |
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Post by srfoskey on Apr 16, 2020 21:17:15 GMT -5
I did one for the hottest and coldest days in OKC. They both look pretty brutal.  |
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Post by Crunch41 on Apr 16, 2020 22:46:08 GMT -5
Moron Wet Perth doesn't have the dry summer trend. When you get a wet summer month, does most of the rain come in one storm, or do you have several rainy periods? Speagles84 Cold pittsburgh has good temperatures, but too many wet days. Over half the days have precipitation, and I bet it's very cloudy. srfoskey If I had to pick I would live in the cold one. Hot deserts are not for me. The cold one is colder than I like, but not horrible. Summer is the worst part with all those rainy days.
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Post by Crunch41 on Apr 19, 2020 15:22:11 GMT -5
Edit: I'm not sure why precipitation is listed in cm, but converting to mm is easy enough. Warmest Maxima is a desert climate (BWk) with hot summers and mild winters. Nights are cool year-round, and precipitation is rare. Warmest Minima gets some rain, but still a desert climate. Days are not as hot, but nights are a lot milder. Frost is very rare and snow is still unheard-of. Fall has a bit of wet season with light rain every few days.  Warmest mean is a mix of the two. With a mean of 18.1C, it qualifies as a BWh climate. Frost is rare, and it only gets light rain a few days each month, if any.  Climates kind of close to these exist in northern Africa, but they are not continental enough or dry enough. For example, Biskra or Tozeur are warmer and wetter versions of the previous three. Further north is cooler but wetter.
Coldest minima is first, because it's easily the best of the three cold climates. It's a Dwc climate. Summer is short, but has two months of warm days that look similar to Steamboat Springs. Fall is cold, but not too dry or wet, and snow is just as common as rain. Winter is extremely cold at night, and less so during the day. Spring starts similar to winter, but March through June has a wet season with heavy snow and rain possible. The growing season is short, but some plants could grow. Unlike the next two, it's not very wet.
Usually when I do these boxes, cold nights are dry. It's rare to have the coldest nights occur during wet days, but Fort Collins gets a lot of cold wet fronts in spring.  Coldest maxima is...extreme. It's still a Dwc, but the record high is 70F  and above-freezing weather has never occurred five months of the year. Most winter days are extremely cold with light snow. Spring gets progressively wetter and snowier, and summer is a cold, wet mess. Fall is cold and wet, leading to high snow totals. I think the snow would melt every year, but I'm not sure. It gets much more snow than Paradise on Mt. Rainier, but summer is warmer and much wetter.  Coldest mean takes the worst of the previous two. Cold and wet, but not quite as wet. July is decent, though, and 70 degree days are possible. Better than the coldest maxima version. You could grow some plants here if they didn't wash away from the rain. Still a Dwc.  For fun, wettest days. It's ridiculous, of course. Most of the wettest days in winter were snowy days, which is much better than cold rain. The record high of 94 is impressive, as is the record highs in the 50s and 60s during months that saw snow every day. A 55/30 day with 12 inches of snow is rare in most climates.  I don't know what this would look like in real life. Summer would melt the snow, but that much rain would probably erode away the soil. November-February are noticeably dryer than the other months. Temperatures are decent and could match somewhere in Eastern Europe except for the summer lag.
Also for fun, snowiest days. If no snow was recorded on that day, I used the wettest day. It's pretty much the same climate since the snowiest days are usually the wettest.  A whole bunch of coldest/hottest/wettest day trivia: Lowest Diurnal range: 1 FMarch 30, 1895. 33/32, 1.5" snow December 13, 1967. 15/14, 5.1" snow Six days with 2 degree ranges. The most interesting is September 21, 1902. 44/42 with 4.34" rain Highest diurnal range: 75F (  ) 284 of 45571 days had a 50 degree dirunal range (0.6%, or about 2 days a year) Several days had a 60 degree range. Mostly warming up after a very cold morning. NOWData doesn't give wind speed, but this must be from a chinook wind. February 12, 1899: 37/-38 - warming after a -7/-30 day December 10, 1919: 51/-23 - warming after a -7/-35 day January 20, 1943: 55/-13 - warming after a 20/-26 day, 68 the next day February 8, 1936: 32/-31 with a trace of snow. Previous day was 30/-14 with 2" snow, next day 31/-3 February 13, 1949: 46/-15 with 1.2" snow. Cooling after a 54/5 day, next day was 14/-5 January 28, 1948: 29/-32 - warming after a 6/-24 day March 18, 1893: 65/5 - previous day 49/10, next day 50/16. Large temperature swings. Coldest day: December 9, 1919: -7/-35F (-22/-37C) Coldest low: February 1, 1961: +5/-41F (-15/-41C) Coldest high: February 4, 1989: -10/-18F (-23/-28C), with 3.5 inches of snow! Hottest day: July 22, 2005: 99/67F (38/19C) or July 31, 2006 90/76 (32/26) Hottest high: July 21, 2005: 103/62 (39/17C) Hottest low: The 90/76 day in 2006 Wettest days: July 29, 1997: 78/61, 4.63" July 25, 1977: 70/61, 4.43" September 21, 1902: 44/42, 4.34" Snowiest days. These both happened outside of winter, because it's not wet enough in winter. November 20, 1979: 41/22, 21.1" snow April 2, 1957: 39/24, 19.7" snow With the high variability, winter weather and cold can happen most of the year. Earliest measurable snow September 12, 1974: 47/32, 0.5" September 12, 1989: 40/33, 3.7" Latest measurable snow June 12, 1947: 49/33, 0.5" Earliest 32F August 25, 1910: 64/32 Earliest ice day September 29, 1985: 29/22, 0.3" snow Earliest 0F October 29, 1917: 26/-7 Latest 0F April 13, 1959: 40/0 April 12, 1959: 35/-8 Latest ice day May 1, 1954: 32/26, 0.19" precip , trace snow Latest 32F June 16, 1945: 60/31 Highest snow depth: 23 inches on March 19, 2003 |
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Post by Steelernation on Apr 19, 2020 15:47:57 GMT -5
Thanks for doing that Crunch41I think warmest lows is my favorite, pleasant but boring. The other 2 warm ones and the coldest lows are livable, the others are not. The warmest ones being deserts and the coldest ones being very wet is what I expected. Clearly a much more interesting climate than here. Those huge diurnals are especially epic, completely impossible in the east. |
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Post by Steelernation on Nov 7, 2020 23:51:38 GMT -5
Here’s Cherry-pick Fort Collins  May is a bit cool and too dry but all the warmer Mays were dry or snowless. July is too dry but all the hot months are dry and I’d rather have heat than storms. August is the worst one, it’s several f too cool. I was pretty anal about not picking an august with a cooler record high than September though and all the ones that qualified were very dry. All the other months are A+ months so I’d give this climate an A or weak A+. |
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Post by Steelernation on Nov 11, 2020 18:53:15 GMT -5
Here are Fort Collins’ snowiest months. For July and August I just used the wettest since they’ve never had snow.  Every month is well below average and wet. |
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Post by Cadeau on Nov 24, 2020 10:45:23 GMT -5
Seoul Hottest Months
JAN: 1.6°C (2020)
FEB: 4.0°C (2007)
MAR: 8.1°C (2018)
APR: 15.6°C (1998)
MAY: 19.7°C (2012)
JUN: 24.4°C (2013)
JUL: 28.5°C (1994)
AUG: 28.8°C (2018)
SEP: 23.1°C (2016)
OCT: 17.9°C (2006)
NOV: 10.7°C (2011)
DEC: 4.0°C (1958)
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Seoul Coldest Months
JAN: -9.1°C (1963)
FEB: -5.3°C (1947)
MAR: -0.2°C (1936)
APR: 8.8°C (1931)
MAY: 13.6°C (1945)
JUN: 18.7°C (1947)
JUL: 21.9°C (1954)
AUG: 22.7°C (1936)
SEP: 17.7°C (1912)
OCT: 11.1°C (1912)
NOV: 1.4°C (1912)
DEC: -5.7°C (1944)
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Seoul Wettest Months
JAN: 96.9mm (1950)
FEB: 111.3mm (1954)
MAR: 226.9mm (1914)
APR: 338.8mm (1964)
MAY: 291.3mm (1997)
JUN: 638.9mm (1946)
JUL: 1,364.2mm (1940)
AUG: 1,237.8mm (1998)
SEP: 671.5mm (2010)
OCT: 214.5mm (1994)
NOV: 164.8mm (1982)
DEC: 104.4mm (1929)
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Seoul Driest Months
JAN: 0.0mm (2019)
FEB: 0.2mm (1977)
MAR: 3.1mm (2000)
APR: 6.1mm (1938)
MAY: 1.7mm (1910)
JUN: 15.7mm (1982)
JUL: 87.6mm (1939)
AUG: 13.4mm (1924)
SEP: 4.5mm (1957)
OCT: 0.0mm (1990, 2020)
NOV: 1.5mm (1946)
DEC: 2.6mm (1987)
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Post by Cadeau on Nov 24, 2020 10:45:51 GMT -5
Tokyo Hottest Months
JAN: 8.1°C (1989)
FEB: 8.6°C (2007)
MAR: 12.2°C (2002)
APR: 17.0°C (2018)
MAY: 21.1°C (2015)
JUN: 24.4°C (1979)
JUL: 28.5°C (2001, 2004)
AUG: 29.6°C (2010)
SEP: 26.2°C (1999, 2012)
OCT: 20.2°C (1994)
NOV: 15.6°C (2004)
DEC: 10.2°C (1968)
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Tokyo Coldest Months
JAN: 0.6°C (1885, 1922)
FEB: 1.6°C (1945)
MAR: 4.9°C (1885)
APR: 10.6°C (1944)
MAY: 15.2°C (1885, 1887)
JUN: 18.3°C (1954)
JUL: 21.8°C (1902, 1931)
AUG: 22.2°C (1905)
SEP: 19.4°C (1908)
OCT: 14.3°C (1899)
NOV: 7.6°C (1884)
DEC: 3.3°C (1892)
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Tokyo Wettest Months
JAN: 144.6mm (1964)
FEB: 226.9mm (1922)
MAR: 221.2mm (1952)
APR: 296.5mm (2020)
MAY: 400.0mm (1965)
JUN: 649.0mm (1938)
JUL: 673.7mm (1941)
AUG: 419.9mm (1910)
SEP: 670.9mm (1958)
OCT: 780.0mm (2004)
NOV: 267.9mm (1916)
DEC: 200.5mm (2006)
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Tokyo Driest Months
JAN: 0.0mm (1940)
FEB: 1.5mm (1887)
MAR: 10.0mm (1973)
APR: 26.7mm (1877)
MAY: 49.0mm (2017)
JUN: 34.1mm (1933)
JUL: 8.6mm (1942)
AUG: 9.0mm (1992)
SEP: 4.9mm (1962)
OCT: 19.0mm (1997)
NOV: 4.6mm (1921)
DEC: 0.0mm (1973, 1988, 1995)
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Tokyo Sunniest Months
JAN: 243.9 hours (2011)
FEB: 220.0 hours (1895)
MAR: 237.4 hours (1965)
APR: 235.4 hours (2004)
MAY: 255.2 hours (1891)
JUN: 241.1 hours (1894)
JUL: 289.5 hours (1898)
AUG: 269.9 hours (1937)
SEP: 191.7 hours (1933)
OCT: 195.3 hours (1914)
NOV: 217.2 hours (1921)
DEC: 235.3 hours (1995)
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Tokyo Cloudiest Months
JAN: 96.7 hours (1910)
FEB: 73.9 hours (1931)
MAR: 59.2 hours (1985)
APR: 89.3 hours (1933)
MAY: 87.9 hours (1963)
JUN: 62.6 hours (1995)
JUL: 47.7 hours (2020)
AUG: 83.7 hours (2017)
SEP: 39.2 hours (1988)
OCT: 67.3 hours (1961)
NOV: 83.2 hours (1941)
DEC: 102.3 hours (1929)
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Lived:
Residence:
and above-freezing weather has never occurred five months of the year. Most winter days are extremely cold with light snow. Spring gets progressively wetter and snowier, and summer is a cold, wet mess. Fall is cold and wet, leading to high snow totals. I think the snow would melt every year, but I'm not sure. It gets much more snow than 
)