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CDUS45 KRIW 290731
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT TUE SEP 29 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 28 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 59 12:10 PM 85 2024 65 -6 72
MINIMUM 45 11:19 PM 20 1985 39 6 52
AVERAGE 52 52 0
PRECIPITATION (IN)
YESTERDAY 0.01 0.32 2014 0.03 -0.02 0.00
MONTH TO DATE 0.31 0.73 -0.42 0.49
SINCE SEP 1 0.31 0.73 -0.42 0.49
SINCE JAN 1 3.36 5.97 -2.61 3.43
DEGREE DAYS
HEATING
YESTERDAY 13 13 0 3
MONTH TO DATE 115 215 -100 148
SINCE SEP 1 115 215 -100 148
SINCE JUL 1 129 274 -145 166
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 21 8 13 19
SINCE SEP 1 21 8 13 19
SINCE JAN 1 558 317 241 441
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WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 5.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 10:00 PM
LOWEST 51 12:00 AM
AVERAGE 72
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THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 85 2024
MINIMUM TEMPERATURE (F) 39 18 1985
SUNRISE AND SUNSET
SEPTEMBER 29 2026.....SUNRISE 7:11 AM MDT SUNSET 7:01 PM MDT
SEPTEMBER 30 2026.....SUNRISE 7:12 AM MDT SUNSET 6:59 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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