Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 300733
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT TUE SEP 30 2025
...................................
...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR SEPTEMBER 29 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 70 1:07 PM 85 2024 65 5 85
MINIMUM 42 6:50 AM 18 1985 39 3 51
AVERAGE 56 52 4
PRECIPITATION (IN)
YESTERDAY T 0.72 1965 0.03 -0.03 0.00
MONTH TO DATE 0.49 0.76 -0.27 0.39
SINCE SEP 1 0.49 0.76 -0.27 0.39
SINCE JAN 1 3.43 6.00 -2.57 4.62
DEGREE DAYS
HEATING
YESTERDAY 9 13 -4 0
MONTH TO DATE 157 228 -71 123
SINCE SEP 1 157 228 -71 123
SINCE JUL 1 175 287 -112 154
COOLING
YESTERDAY 0 0 0 3
MONTH TO DATE 19 8 11 38
SINCE SEP 1 19 8 11 38
SINCE JAN 1 441 317 124 445
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 3.9
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 85 7:00 AM
LOWEST 33 3:00 PM
AVERAGE 59
..........................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 80 1980
MINIMUM TEMPERATURE (F) 39 15 1985
SUNRISE AND SUNSET
SEPTEMBER 30 2025.....SUNRISE 7:12 AM MDT SUNSET 6:59 PM MDT
OCTOBER 1 2025.......SUNRISE 7:13 AM MDT SUNSET 6:57 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$