343
CXUS55 KRIW 011830
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1115 AM MST MON DEC 01 2025

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR GREYBULL FOR THE MONTH OF
NOVEMBER 2025...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF NOVEMBER 2025 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 NOVEMBER WAS WARMER AND DRIER THAN NORMAL....

THE AVERAGE TEMPERATURE FOR GREYBULL IN NOVEMBER WAS 38.8 DEGREES
WHICH IS 7.6 DEGREES ABOVE NORMAL. IT WAS THE 3RD WARMEST NOVEMBER
SINCE RECORDS BEGAN IN 1998. THE WARMEST TEMPERATURE FOR THE MONTH
WAS 66 DEGREES ON THE 13TH AND 15TH...WHICH TIED THE 2016 RECORD.
THE COLDEST TEMPERATURE WAS 6 DEGREES ON THE 29TH AND 30TH.

PRECIPITATION FOR THE MONTH WAS 0.09 INCHES...WHICH IS 47 PERCENT OF
NORMAL. THE WETTEST 24-HOUR PERIOD OCCURRED ON THE 24TH WITH 0.05
INCHES. THE 7TH HAD 0.02 INCHES AND BROKE THE 2008 RECORD OF 0.01.
THE HIGHEST WIND GUST WAS 60 MPH. IT OCCURRED ON THE 28TH FROM THE
NORTHWEST.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             73   11/01/2014
                       11/08/1999
                       11/06/1999
 LOW             -22   11/16/2014
HIGHEST           66   11/13
                       11/15
LOWEST             6   11/29
                       11/30
AVG. MAXIMUM    52.3               43.5     8.8
AVG. MINIMUM    25.3               18.9     6.4
MEAN            38.8               31.2     7.6
DAYS MAX >= 90     0
DAYS MAX <= 32     2
DAYS MIN <= 32    23
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        0.80   2002
 MINIMUM        0.00   2009
TOTALS          0.09               0.19   -0.10     0.21
DAILY AVG.      0.00               0.01   -0.01
DAYS >= .01        3
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.05   11/24 TO 11/24
 STORM TOTAL    0.05

DEGREE DAYS
HEATING TOTAL    780               1014    -234
 SINCE 7/1      1373               1776    -403
COOLING TOTAL      0                  0       0
 SINCE 1/1       791                744      47
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              4.7
RESULTANT WIND SPEED/DIRECTION   1/320
HIGHEST WIND SPEED/DIRECTION    45/330    DATE  11/28
HIGHEST GUST SPEED/DIRECTION    60/330    DATE  11/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.21
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                2     SLEET                      0
FOG                       4     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

LOOKING AHEAD TO DECEMBER 2025. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 35 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 12 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 29
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 6 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.11 INCHES.

$$