393
CDUS45 KRIW 280727
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT MON SEP 28 2026
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 27 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 74 4:07 PM 82 2001 66 8 76
2015
2024
MINIMUM 47 6:42 AM 18 1996 40 7 44
AVERAGE 61 53 8
PRECIPITATION (IN)
YESTERDAY 0.00 0.81 2014 0.03 -0.03 0.00
MONTH TO DATE 0.30 0.70 -0.40 0.49
SINCE SEP 1 0.30 0.70 -0.40 0.49
SINCE JAN 1 3.35 5.94 -2.59 3.43
DEGREE DAYS
HEATING
YESTERDAY 4 12 -8 5
MONTH TO DATE 102 202 -100 145
SINCE SEP 1 102 202 -100 145
SINCE JUL 1 116 261 -145 163
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 29 HIGHEST WIND DIRECTION S (190)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 8.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 52 11:00 PM
LOWEST 20 1:00 PM
AVERAGE 36
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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 20 1985
SUNRISE AND SUNSET
SEPTEMBER 28 2026.....SUNRISE 7:10 AM MDT SUNSET 7:03 PM MDT
SEPTEMBER 29 2026.....SUNRISE 7:11 AM MDT SUNSET 7:01 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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