815
CDUS45 KRIW 230728
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT TUE SEP 23 2025
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 22 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 61 1:35 PM 84 1966 68 -7 70
MINIMUM 41 11:59 PM 21 2000 42 -1 38
AVERAGE 51 55 -4
PRECIPITATION (IN)
YESTERDAY 0.08 1.09 2016 0.03 0.05 0.00
MONTH TO DATE 0.27 0.55 -0.28 0.39
SINCE SEP 1 0.27 0.55 -0.28 0.39
SINCE JAN 1 3.21 5.79 -2.58 4.62
DEGREE DAYS
HEATING
YESTERDAY 14 10 4 11
MONTH TO DATE 98 144 -46 110
SINCE SEP 1 98 144 -46 110
SINCE JUL 1 116 203 -87 141
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 19 8 11 32
SINCE SEP 1 19 8 11 32
SINCE JAN 1 441 317 124 439
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WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 11.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90 7:00 PM
LOWEST 42 3:00 PM
AVERAGE 66
......................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 83 1966
MINIMUM TEMPERATURE (F) 41 19 2000
SUNRISE AND SUNSET
SEPTEMBER 23 2025.....SUNRISE 7:05 AM MDT SUNSET 7:11 PM MDT
SEPTEMBER 24 2025.....SUNRISE 7:06 AM MDT SUNSET 7:09 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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