802
CDUS45 KRIW 170731
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT THU SEP 17 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 16 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
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TEMPERATURE (F)
YESTERDAY
MAXIMUM 73 2:27 PM 84 2000 71 2 65
MINIMUM 52 7:38 AM 18 1965 44 8 45
AVERAGE 63 57 6
PRECIPITATION (IN)
YESTERDAY 0.02 0.68 1965 0.03 -0.01 0.05
MONTH TO DATE 0.06 0.38 -0.32 0.13
SINCE SEP 1 0.06 0.38 -0.32 0.13
SINCE JAN 1 3.11 5.62 -2.51 3.07
DEGREE DAYS
HEATING
YESTERDAY 2 8 -6 10
MONTH TO DATE 24 88 -64 53
SINCE SEP 1 24 88 -64 53
SINCE JUL 1 38 147 -109 71
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 24 HIGHEST WIND DIRECTION S (160)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION S (170)
AVERAGE WIND SPEED 12.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 7:00 AM
LOWEST 32 12:00 AM
AVERAGE 63
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THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 83 2010
MINIMUM TEMPERATURE (F) 44 10 1965
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:59 AM MDT SUNSET 7:22 PM MDT
SEPTEMBER 18 2026.....SUNRISE 7:00 AM MDT SUNSET 7:20 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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