342
CDUS45 KRIW 280729
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT SUN SEP 28 2025
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 27 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 76 3:47 PM 82 2001 66 10 82
2015
2024
MINIMUM 44 6:50 AM 18 1996 40 4 50
AVERAGE 60 53 7
PRECIPITATION (IN)
YESTERDAY 0.00 0.81 2014 0.03 -0.03 0.00
MONTH TO DATE 0.49 0.70 -0.21 0.39
SINCE SEP 1 0.49 0.70 -0.21 0.39
SINCE JAN 1 3.43 5.94 -2.51 4.62
DEGREE DAYS
HEATING
YESTERDAY 5 12 -7 0
MONTH TO DATE 145 202 -57 123
SINCE SEP 1 145 202 -57 123
SINCE JUL 1 163 261 -98 154
COOLING
YESTERDAY 0 0 0 1
MONTH TO DATE 19 8 11 35
SINCE SEP 1 19 8 11 35
SINCE JAN 1 441 317 124 442
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WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 3.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 7:00 AM
LOWEST 23 3:00 PM
AVERAGE 53
......................................................
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 2025.....SUNRISE 7:10 AM MDT SUNSET 7:02 PM MDT
SEPTEMBER 29 2025.....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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