649
CXUS55 KRIW 092021
CLMBPI
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
121 PM MST FRI JAN 09 2026
...............................
...THE BIG PINEY WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1976 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 57 12/12/2017
LOW -50 12/23/1983
HIGHEST 52 12/11
LOWEST -4 12/28
AVG. MAXIMUM 39.6 27.6 12.0
AVG. MINIMUM 15.6 -2.2 17.8
MEAN 27.6 12.7 14.9
DAYS MAX >= 90 0
DAYS MAX <= 32 4
DAYS MIN <= 32 31
DAYS MIN <= 0 1
PRECIPITATION (INCHES)
RECORD
MAXIMUM 1.39 1983
MINIMUM T 2019
TOTALS 0.67 0.23 0.44 0.30
DAILY AVG. 0.02 0.01 0.01
DAYS >= .01 12
DAYS >= .10 2
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.19 12/17 TO 12/17
STORM TOTAL 0.19
DEGREE DAYS
HEATING TOTAL 1149 1621 -472
SINCE 7/1 3208 4374 -1166
COOLING TOTAL 0 0 0
SINCE 1/1 41 30 11
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WIND (MPH)
AVERAGE WIND SPEED 7.0
RESULTANT WIND SPEED/DIRECTION 2/320
HIGHEST WIND SPEED/DIRECTION 47/290 DATE 12/17
HIGHEST GUST SPEED/DIRECTION 63/280 DATE 12/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.34
NUMBER OF DAYS FAIR 16
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 2
AVERAGE RH (PERCENT) 71
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 1
LIGHT RAIN 4 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 2 SNOW 2
LIGHT SNOW 15 SLEET 0
FOG 16 FOG W/VIS <= 1/4 MILE 2
HAZE 2
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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