494
CDUS45 KRIW 310045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SUN AUG 30 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR AUGUST 30 2026
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 79 11:06 AM 96 1948 83 -4 78
MINIMUM 61 6:09 AM 34 1965 48 13 50
2024
AVERAGE 70 65 5 64
PRECIPITATION (IN)
TODAY T 0.43 2003 0.02 -0.02 0.02
MONTH TO DATE 2.01 0.77 1.24 0.72
SINCE JUN 1 2.69 3.30 -0.61 2.39
SINCE JAN 1 6.34 8.81 -2.47 7.31
SNOWFALL (IN)
TODAY MM 0.0 MM 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 2 -2 1
MONTH TO DATE 5 25 -20 5
SINCE JUN 1 97 165 -68 101
SINCE JUL 1 5 39 -34 10
COOLING
TODAY 5 3 2 0
MONTH TO DATE 213 153 60 147
SINCE JUN 1 590 404 186 449
SINCE JAN 1 591 408 183 449
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 24.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67
LOWEST 30
AVERAGE 49
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 94 1954
2007
MINIMUM TEMPERATURE (F) 47 33 1965
1977
2020
SUNRISE AND SUNSET
AUGUST 30 2026........SUNRISE 6:28 AM MDT SUNSET 7:44 PM MDT
AUGUST 31 2026........SUNRISE 6:29 AM MDT SUNSET 7:42 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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