660
CXUS55 KRIW 022234
CLMGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
319 PM MST MON FEB 02 2026
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR GREYBULL FOR THE MONTH OF
JANUARY 2026...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF JANUARY 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 JANUARY WAS WARMER WITH RECORD DRYNESS.
THE AVERAGE TEMPERATURE FOR GREYBULL IN JANUARY WAS 27 DEGREES WHICH
IS 9.5 DEGREES ABOVE NORMAL. IT WAS THE 3RD WARMEST JANUARY SINCE
RECORDS BEGAN IN 1998. THE WARMEST TEMPERATURE FOR THE MONTH WAS 56
DEGREES ON THE 4TH WHICH BROKE THE 2020 OF 50. AND ON THE 14TH WHICH
BROKE 54 DEGREES FROM 2006. AND ALSO ON THE 31ST WHICH TIED THE 2024
RECORD. THE HIGH OF 56 ALSO TIED THE ALL-TIME MONTHLY HIGH SET IN
2024. SEVERAL OTHER DAILY HIGH RECORDS WERE BROKEN AND ARE LISTED
BELOW. THE COLDEST TEMPERATURE WAS -12 DEGREES ON THE 24TH.
DATENEWOLDYEAR
2ND 51492006
3RD 49482012
7TH 51452020
15TH 53512012
PRECIPITATION FOR THE MONTH WAS JUST A TRACE...WHICH IS ONLY 1
PERCENT OF NORMAL. IT TIED WITH 2024, 2006 AND 2005 FOR DRIEST
JANUARY ON RECORD. THE WETTEST 24-HOUR PERIOD OCCURRED ON SEVERAL
DAYS WITH JUST A TRACE. THE HIGHEST WIND GUST WAS 63 MPH. IT
OCCURRED ON THE 15TH FROM THE NORTHWEST.
..THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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 56 01/31/2024
LOW -37 01/27/2009
HIGHEST 56R 01/04
01/14
01/31
LOWEST -12 01/24
AVG. MAXIMUM 39.7 28.9 10.8
AVG. MINIMUM 14.2 6.0 8.2
MEAN 27.0 17.5 9.5
DAYS MAX >= 90 0
DAYS MAX <= 32 6
DAYS MIN <= 32 31
DAYS MIN <= 0 4
PRECIPITATION (INCHES)
RECORD
MAXIMUM 0.42 2008
MINIMUM 0.00 2006
TOTALS T 0.15 -0.15 0.16
DAILY AVG. T 0.00 -0.00
DAYS >= .01 0
DAYS >= .10 0
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL T 01/20 TO 01/20
01/23 TO 01/23
01/25 TO 01/25
STORM TOTAL 0.00
DEGREE DAYS
HEATING TOTAL 1171 1474 -303
SINCE 7/1 3536 4670 -1134
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 5.8
RESULTANT WIND SPEED/DIRECTION 2/340
HIGHEST WIND SPEED/DIRECTION 44/340 DATE 01/15
HIGHEST GUST SPEED/DIRECTION 63/330 DATE 01/15
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.31
NUMBER OF DAYS FAIR 20
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 2
AVERAGE RH (PERCENT) 62
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 0 SNOW 0
LIGHT SNOW 5 SLEET 0
FOG 3 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO FEBRUARY 2026. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 30 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 8 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 43
DEGREES... AND THE AVERAGE LOW TEMPERATURE IS 18 DEGREES. THE
AVERAGE MONTHLY PRECIPITATION IS 0.12 INCHES.
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