375
CDUS45 KRIW 150735
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
135 AM MDT TUE SEP 15 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 14 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 71 4:13 PM 87 1990 72 -1 72
MINIMUM 46 6:28 AM 26 1970 45 1 40
AVERAGE 59 58 1
PRECIPITATION (IN)
YESTERDAY 0.02 0.27 2016 0.03 -0.01 0.00
MONTH TO DATE 0.04 0.33 -0.29 0.08
SINCE SEP 1 0.04 0.33 -0.29 0.08
SINCE JAN 1 3.09 5.57 -2.48 3.02
DEGREE DAYS
HEATING
YESTERDAY 6 7 -1 9
MONTH TO DATE 16 72 -56 38
SINCE SEP 1 16 72 -56 38
SINCE JUL 1 30 131 -101 56
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 30 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 15.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 76 5:00 AM
LOWEST 11 4:00 PM
AVERAGE 44
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THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 86 1990
MINIMUM TEMPERATURE (F) 44 24 1970
SUNRISE AND SUNSET
SEPTEMBER 15 2026.....SUNRISE 6:57 AM MDT SUNSET 7:25 PM MDT
SEPTEMBER 16 2026.....SUNRISE 6:58 AM MDT SUNSET 7:24 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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