685
CDUS45 KRIW 220731
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT TUE SEP 22 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 21 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 70 3:51 PM 82 1967 68 2 75
MINIMUM 40 5:42 AM 22 1995 42 -2 49
AVERAGE 55 55 0
PRECIPITATION (IN)
YESTERDAY 0.00 0.32 1963 0.03 -0.03 0.05
MONTH TO DATE 0.29 0.52 -0.23 0.19
SINCE SEP 1 0.29 0.52 -0.23 0.19
SINCE JAN 1 3.34 5.76 -2.42 3.13
DEGREE DAYS
HEATING
YESTERDAY 10 10 0 3
MONTH TO DATE 67 134 -67 84
SINCE SEP 1 67 134 -67 84
SINCE JUL 1 81 193 -112 102
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 20 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 6.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 6:00 AM
LOWEST 18 4:00 PM
AVERAGE 56
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THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 84 1966
MINIMUM TEMPERATURE (F) 42 21 2000
SUNRISE AND SUNSET
SEPTEMBER 22 2026.....SUNRISE 7:04 AM MDT SUNSET 7:13 PM MDT
SEPTEMBER 23 2026.....SUNRISE 7:05 AM MDT SUNSET 7:11 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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