587
CDUS45 KRIW 180740
CLIBPI
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1240 AM MST THU DEC 18 2025
...............................
..THE BIG PINEY WY CLIMATE SUMMARY FOR DECEMBER 17 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1976 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 41 11:10 AM 44 1980 27 14 33
1998
MINIMUM 24 11:59 PM -24 1990 -3 27 2
AVERAGE 33 12 21
PRECIPITATION (IN)
YESTERDAY 0.19R 0.05 1992 0.01 0.18 0.02
MONTH TO DATE 0.25 0.11 0.14 0.07
SINCE DEC 1 0.25 0.11 0.14 0.07
SINCE JAN 1 8.16 7.54 0.62 4.19
DEGREE DAYS
HEATING
YESTERDAY 32 53 -21 47
MONTH TO DATE 627 866 -239 777
SINCE DEC 1 627 866 -239 777
SINCE JUL 1 2686 3619 -933 3308
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 41 30 11 64
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 47 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 63 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 17.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 12:00 PM
LOWEST 35 4:00 PM
AVERAGE 64
......................................................
THE BIG PINEY WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 27 41 1980
MINIMUM TEMPERATURE (F) -3 -21 2016
2022
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 7:45 AM MST SUNSET 4:49 PM MST
DECEMBER 19 2025......SUNRISE 7:46 AM MST SUNSET 4:49 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page