Cherrypick Turku or anywhere else

A few hours the first one. Now it's much faster. I can do this for any climate, as long as I can get daily data into a spreadsheet. US climates I know a place, other countries I don't know. I'm thinking of doing wettest or snowiest days for Madison but it will be ridiculous. Any requests?

Here's the coldest days in Madison. Now a Dwc climate with seasonal lag, wet summers, and severe winters.

Precipitation pattern is almost the opposite of hot days. In fall and winter cold weather usually comes from high pressure from Canada, so those months would be sunny. In summer cold days are often cloudy with drizzle, since the sun would heat it up if the clouds weren't there-low sun hours in those months. But I'm surprised August is so dry and April is so snowy. And that

A lot of days are missing snow data so I estimated snow and snow days based on this formula: (Measured Snow * #Days in the month)/(#Days in the month - #missing days). Snow is 33% higher with the estimated method and snow days is 15% higher.

Snow cover makes temperatures colder, so there was only 1 day in January and 0 in February without at least a few inches on the ground. January 15th 1972 had a trace of snow cover, which probably means some snow cover but less than one inch. Somehow the temperature for the day was -13/-24F (-25/-31C) one of the 10 coldest days on record-without much snow!

Also it's odd that July still reached 77F/25C. The low was 41F/5C, but still...there must have been a few highs in the 60s.

AJ1013 Here is Rochester. I have the data for Tucson but it's not working right for some months. Here are the current coldest days, September is wrong.


Cold Rochester is a wet Dfc climate with strong seasonal lag. Four months have record highs below freezing and snowfall is high 7 months of the year. Rochester is wet on most of the cold days all year. Late summer is the only dry time of year. Snow is extremely high for the cold temperatures. Is lake effect snow common on cold days?

100% of coldest days had snow cover in December through March. Not surprising. Snow cover would last until early May I think.

Enontekiö is amazing! Is there any snowfall data?

Holy shit, the snow must be insane in that fake climate. Fall is horrible drizzle.

The real question, though, is it still a cold fucken desert? knot

a bit OT for the thread, but this is the most snowy winter i could find for a place that also has temperature data. for sweden, that is.



this place had 265cm of snow the 13th of march that year, which is the highest march snow-depth recorded in sweden.

Coldest days in Ojmjakon, 1943-2010.

Coldest lows: Highs in summer aren't terrible, but every single night is below freezing! The warmest night is -1.5C/29.3F. A polar desert climate, with probably zero plants to be seen. Sun hours are high. Winter is insane, of course.


Coldest means: Summer is cold and wet, with rain almost every day. The other 9 months are arctic cold.


Coldest highs: the worst one. Summer is even colder and wetter, and now it's barely above 10 ever. Lows are above freezing for a few months.


A few days stick out:
Some of the low min days huge diurnal ranges: August 2nd was the largest.
July 1st 1948 25.4/-7.7 (77.7/18.1F)
August 6th 1965 25.5/-7.5 (77.9/18.5)
August 2nd 1965 25.9/-9.0 (78.6/15.8)
April 6th 1999 -4.5/-39.8 (23.9/-39.6)
March 22nd 1999 -10.2/-48.4 (13.6/-55.1)
The warmest "cold mean" day was September 2nd, 1964 with a max of 17.1C. But the low was -12.5 (62.8/9.5F)
The wettest day was 39.4mm of cold rain on July 6, 1979. 9.8/0.4C (49.6/32.7F and 1.55")

Latest ice day was May 19 1956 (-2.2/-6.2C or 28.0/20.8F), June 3 1961 was close at +1.5/-1.5C (34.7/29.3F)
Coldest July max was July 14, 1946, +6.0/+0.2 with 29mm rain (42.8/32.4 and 1.14")
First ice day was September 12, 2006 (-2.5/-7.3 or 27.5/18.9F), the 4th came close.

The days with the lowest means had a lower highs than the days with the lowest maxes. There's two reasons why:
1) I made up max/mins sometimes when one of the two was missing. I used mean=(max+min)/2. A few were missing 2 of the 3 numbers, so I assumed the diurnal range was the average of the other cold days that month. That only changed the average a few tenths. But the -52.4 in the low mean box was much warmer than the lowest real value of -54.9.
2) the main one is that a lot of the days with lowest mean temperatures in winter were missing the max temp. So they didn't show up when I searched for low max temps. And with the tiny diurnal range they get in winter, the days with the lowest mean probably have a lower max too.

Data source:
cdiac.ess-dive.lbl.gov/ftp/russia_daily/Russia_stations/24688.txt
cdiac.ess-dive.lbl.gov/ftp/russia_daily/

Cherrypick Seattle:

January: 2019
February: 1968
March: 1941
April: 2016
May: 1958
June: 2015
July: 2015
August: 2014
September: 1967
October: 2014
November: 1939
December: 1939

Unfortunately, the warmer summer months tend to have low precipitation, so I had to make some sacrifices.

Warmest months at Dulles Airport (1962-present):




Months used: January 2006, February 2017, March 2012, May 2004, June 2010, July 2011, August 2016, September 2016, October 2007, November 1985, December 2015


Coldest months at Dulles Airport (1962-present):



Months used: January 1977, February 1979, March 2014, April 1966, May 1967, June 1974, July 2000, August 1992, September 1984, October 1988, November 1976, December 1989


Things of note:

- Interesting how in the cold year, February - July correlated with above average precipitation, and August - January the exact opposite

- I'm almost certain March 1960 was much colder than March 2014, as Reagan which is a much warmer station, averaged 42.8/28.1 that month. But the POR is only back to 1962.

- February recorded the coldest temp of the year during both the hot and cold cherrypicks. February 18, 1979 had a 8/-14 day, which is a -39.7 F departure.

- 11/12 warmest months were recorded after 2000, and the opposite is true for the coldest months.


I will do driest, wettest, least snowy, snowiest later or tomorrow.