859
CDUS45 KRIW 290728
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1228 AM MST MON DEC 29 2025
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR DECEMBER 28 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 23 3:37 PM 49 2005 28 -5 39
MINIMUM 10 8:03 AM -15 2015 13 -3 28
AVERAGE 17 21 -4
PRECIPITATION (IN)
YESTERDAY T 0.13 1957 0.01 -0.01 0.01
MONTH TO DATE 0.10 0.28 -0.18 0.10
SINCE DEC 1 0.10 0.28 -0.18 0.10
SINCE JAN 1 4.51 7.52 -3.01 5.79
DEGREE DAYS
HEATING
YESTERDAY 48 44 4 31
MONTH TO DATE 805 1211 -406 1048
SINCE DEC 1 805 1211 -406 1048
SINCE JUL 1 2297 3165 -868 2686
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 442 320 122 445
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WIND (MPH)
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 17.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 4:00 AM
LOWEST 39 3:00 PM
AVERAGE 63
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THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 28 47 2017
MINIMUM TEMPERATURE (F) 13 -11 1978
SUNRISE AND SUNSET
DECEMBER 29 2025......SUNRISE 7:43 AM MST SUNSET 4:55 PM MST
DECEMBER 30 2025......SUNRISE 7:43 AM MST SUNSET 4:55 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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