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Post by Cadeau on Apr 2, 2020 16:07:40 GMT -5
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Post by Donar on Apr 3, 2020 7:51:03 GMT -5
Record High: 2017 Record Low: 2005
Comparison to 1961-1990:
Avg High: +1.7 °C Mean : +1.6 °C Avg Low: +1.2 °C
Precipitation: -12.4 mm Sunshine: +19 hours
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Post by srfoskey on Apr 3, 2020 19:16:46 GMT -5
Here's March. Both cities had significantly less warming than in January or February, and OKC was less rainy, while Raleigh was less snowy.  Changes vs. 1981-2010 for OKC Avg max: +1.0F Avg mean: +0.8F Avg min: +0.5F Avg precip: -0.51" Avg snow: -0.1" Changes vs. 1961-1990 for OKC Avg max: +1.7F Avg mean: +1.8F Avg min: +1.9F Avg precip: -0.16" Avg snow: -0.4" Changes vs. 1981-2010 for Raleigh Avg max: +0.2F Avg mean: +0.4F Avg min: +0.7F Avg precip: -0.01" Avg snow: -0.2" Changes vs. 1961-1990 for Raleigh Avg max: +1.1F Avg mean: +1.4F Avg min: +1.8F Avg precip: +0.33" Avg snow: -1.2" |
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Post by Nidaros on Apr 4, 2020 15:23:34 GMT -5
Trondheim Airport 1991-2020 so far, including extremes for that period.
Temp differences from 61-90:
Jan mean +2.2'C Feb mean +1.3'C Mar mean +0.6'C
Feb is now the coldest month; Jan used to be 0.8C colder than Feb.
Feb and Mar precipitation has increased.
61-90 normal for precip: Jan-Feb-Mar: 63 mm, 52 mm, 54 mm.
The mean always is 1 something... Jan and Feb are almost identical.
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Post by Crunch41 on Apr 5, 2020 0:11:30 GMT -5
1991-2020 averages and extremes, first quarter of the year.  Comparison of these averages to the 1981-2010 normals. All three months are slightly warmer. Precipitation is similar except for February snowfall. However, for the 1981-2010 period the average snowfall was 10.7, which means it really went up 1.3 inches. Next time I think I will calculate the unadjusted averages for 1981-2010 and use those for comparison.
Also, all three record highs were tied or broken since 1990. The February record low was broken, but the other two records still stand.February snowfall is much higher now.
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Post by Beercules on Apr 5, 2020 1:32:00 GMT -5
Rectum Airport
Only became the official station in 1995, so data is from then onwards
Month: low/high .... rainfall
Jan: 16.4/33.8C ...... 18.8mm
Feb: 16.1/32.7C ...... 19.5mm
Mar: 13.0/29.2C ...... 11.6mm
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Post by Nidaros on Apr 23, 2020 15:39:55 GMT -5
Comparing what goes for warm or mild April days in Norway - 1961-90 compared to 1990-2019. First number of April days with highs at least 15C, then number of days with highs at least 10C.
For Værnes, days with highs reaching at least 15C has increased from an avg of 1 to 3 days. Days with high at least 10C has increased from 8 to 13 days.
Oslo has seen days with high at least 15C increase from 3 to 5.
April has warmed in the whole country. Averages are obviously rounded to closest whole number.
I have counted April days at Trondheim-Værnes with highs 15C or above from 2000-2019; it was 67, giving an avg of 3.35 days for the last 20 years. April 2019 had 14 days with high at least 15C.
Cred: met.no/May-Linn Finstad Svehagen
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Post by Nidaros on May 1, 2020 6:22:26 GMT -5
Average number of days in April with high at least 20'C:
Oslo 1991-2020: 1 (30 days). The 61-90 avg was 0.1 day. Bergen 1991-2020: 0.9 days (27 days). 61-90 avg was 0, just happene one day in Apr 1989 Trondheim-Værnes: 0.3 days (9 days). The 61-90 avg was 0, happened one day in 1989.
So average April days with high at or above 20'C are 9 times more common in the last 30 years compared to the previous 30 years.
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Post by boombo on May 1, 2020 7:24:04 GMT -5
I haven't worked out the whole 91-20 stats but April's had a much greater warmth/sun potential over the past 10 years here too, even though we've still had some cold and dull Aprils mixed in.
81-10 avg high 10.7C, avg sun hours 131
11-20 avg high 11.6C, avg sun hours 158
The three sunniest Aprils in more than 100 years of records have been since 2011 and four of the top five since 2007!
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Post by Cadeau on May 1, 2020 9:29:53 GMT -5
Seoul, South Korea 1991–April 2020 normals  Reykjavík 1991–March 2020 normals  |
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Post by Speagles84 on May 1, 2020 9:43:19 GMT -5
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Deleted
Deleted Member
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Post by Deleted on May 1, 2020 10:55:50 GMT -5
London Heathrow April 1991-2020
Avg max: 15.0c
Mean: 10.5c
Avg min: 6.0c
Precip: 42.3mm
Precip days: 9.2
Sunshine: 169.3 hours
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Post by Wildcat on May 1, 2020 11:10:40 GMT -5
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Post by Steelernation on May 1, 2020 14:42:02 GMT -5
April actually got slightly cooler.  Mean max: 79.9 f Mean min: 24.1 f Differences from 1981-2010: Average high: 0 f Average low: -0.1 f Mean: -0.1 f Precipitation: +0.26”, +10% Snowfall: -0.9”, -23% Record high: 2012 Record low: 2016 |
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Post by srfoskey on May 2, 2020 0:04:46 GMT -5
Both OKC and Raleigh have gotten a lot wetter in recent Aprils. Raleigh has warmed slightly, but I'm surprised that OKC has cooled. On the other hand, two of OKC's top 10 coldest Aprils happened in the past decade, so maybe it's not too surprising.  Changes vs. 1981-2010 for OKC Avg max: +0.2F Avg mean: +0.1F Avg min: +0.1F Avg precip: +0.54" Avg snow: -0.0" Changes vs. 1961-1990 for OKC Avg max: -0.3F Avg mean: -0.4F Avg min: -0.5F Avg precip: +0.83" Avg snow: -0.0" Changes vs. 1981-2010 for Raleigh Avg max: +0.5F Avg mean: +0.8F Avg min: +1.1F Avg precip: +0.62" Avg snow: -0.1" Changes vs. 1961-1990 for Raleigh Avg max: +0.8F Avg mean: +1.7F Avg min: +2.7F Avg precip: +0.94" Avg snow: -0.1" |
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Post by Nidaros on May 2, 2020 6:00:31 GMT -5
The 61-90 normal for Trondheim-Værnes: Avg high: 7.8C Mean: 3.9C Avg low: 0.3C Precip: 49 mm
So the high has warmed the most, 1.5C. Sligthly surprising. Mean +1.2C.
Also got slightly drier.
That record low from 1996 seems strong, second coldest low -8C. The record high is from 2019.
From Cadeau's post, I can see that the record high for April here is warmer than the record high for June in Reykjavik.
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Post by jgtheone on May 2, 2020 6:14:34 GMT -5
Jan-Apr 2020 done. May-Dec are still 1991-2019.  |
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Post by Ariete on May 2, 2020 10:20:07 GMT -5
Slightly more warming than Trondheim Värnes, but they are still slightly warmer in April. Record high is from 1993, record low from 1998.
Difference from 81-10: High: +0.5C Mean: +0.5C Low: +0.5C Precipitation: -1 mm Difference from 61-90: High: +1.9C Mean: +1.6C
Low: +1.3C
Precipitation: -5 mm
And then Helshitki Aéroport. Poor warming from last normals, great improvement from 1961-1990. Record high from 1995, record low from 1998. Surprisingly low, actually, the only double digit negative since 1977.
Difference from 81-10:
High: +0.4C
Mean: +0.3C
Low: +0.2C
Precipitation: -4 mm
Sunshine: +9 h
Difference from 61-90:
High: +1.8C
Mean: +1.5C
Low: +1.1C
Precipitation: -2 mm
Sunshine: +23 h
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Post by Nidaros on May 2, 2020 13:17:41 GMT -5
Slightly more warming than Trondheim Värnes, but they are still slightly warmer in April.
Difference from 61-90: High: +1.9C Mean: +1.6C
Low: +1.3C
Precipitation: -5 mm
April mean for Oslo (94 m) has also warmed 1.6C from 61-90 to 91-2020 (from mean 4.5C to 6.1C), same warming as Turku.
Oslo is now 1C warmer than us in April.
But April in Trondheim 91-2020 is warmer than April in Oslo 61-90.
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Post by Donar on May 3, 2020 5:49:31 GMT -5
Record High: 2012
Record Low: 2003
Comparison to 1961-1990:
Avg High: +2.3 °C
Mean : +1.9 °C
Avg Low: +1.5 °C
Precipitation: -14.7 mm
Sunshine: +29 hours
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Lived:
Residence:
