062
CXUS55 KRIW 031710
CLMGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1049 AM MDT FRI APR 03 2026
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR GREYBULL FOR THE MONTH OF
MARCH 2026...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF MARCH 2026 WILL BE
AVAILABLE IN APPROXIMATELY 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW
..GREYBULL IN MARCH WAS WETTER THAN NORMAL WITH RECORD WARMTH.
THE AVERAGE TEMPERATURE FOR GREYBULL IN MARCH WAS 45.9 DEGREES WHICH
IS 8 DEGREES ABOVE NORMAL. IT WAS THE 1ST WARMEST MARCH SINCE
RECORDS BEGAN IN 1998. THE WARMEST TEMPERATURE FOR THE MONTH WAS 85
DEGREES ON THE 21ST WHICH BROKE THE 2009 RECORD OF 75. THIS ALSO SET
A NEW ALL-TIME RECORD HIGH FOR MARCH...BEATING THE PREVIOUS RECORD
OF 81 SET ON MARCH 31ST 2012. SEVERAL OTHER RECORD HIGHS WERE SET
AND ARE LISTED BELOW. THE COLDEST TEMPERATURE WAS 10 DEGREES ON THE
15TH AND BROKE THE 2019 RECORD OF 17.
DATENEWOLDYEAR
8TH 67642004
9TH 66(T)662004,2005
19TH83742004
(EARLIEST 80-DEGREE DAY FOR THE YEAR. PREVIOUS WAS MARCH 27TH 2025)
20TH84742007
24TH74732004
25TH76751999
29TH76672010, 2014
PRECIPITATION FOR THE MONTH WAS 0.25 INCHES...WHICH IS 114 PERCENT
OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS 0.18 INCHES ON THE 5TH AND
BROKE A TRACE FROM 1999, 2004 AND 2008. THE HIGHEST WIND GUST WAS 59
MPH. IT OCCURRED ON THE 12TH FROM THE WEST AND ON THE 14TH FROM THE
NORTHWEST.
..THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF MARCH 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 85 03/21/2026
LOW -24 03/04/2019
HIGHEST 85R 03/21
LOWEST 10 03/15
AVG. MAXIMUM 62.3R 51.2 11.1
AVG. MINIMUM 29.6 24.6 5.0
MEAN 45.9R 37.9 8.0
DAYS MAX >= 90 0
DAYS MAX <= 32 1
DAYS MIN <= 32 20
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 0.53 2023
MINIMUM 0.00 2009
TOTALS 0.25 0.22 0.03 0.47
DAILY AVG. 0.01 0.01 0.00
DAYS >= .01 2
DAYS >= .10 1
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.18 03/05 TO 03/05
STORM TOTAL 0.18
DEGREE DAYS
HEATING TOTAL 583 840 -257
SINCE 7/1 4971 6662 -1691
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 7.9
RESULTANT WIND SPEED/DIRECTION 3/310
HIGHEST WIND SPEED/DIRECTION 43/280 DATE 03/12
HIGHEST GUST SPEED/DIRECTION 59/280 DATE 03/12
59/350 03/14
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.19
NUMBER OF DAYS FAIR 22
NUMBER OF DAYS PC 8
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 48
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 2 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 1
LIGHT SNOW 2 SLEET 0
FOG 3 FOG W/VIS <= 1/4 MILE 1
HAZE 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO APRIL 2026. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 57 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 30 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 64
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 37 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.53 INCHES.
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