821
CDUS45 KRIW 200045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT TUE AUG 19 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR AUGUST 19 2025
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 96 4:12 PM 97 2019 86 10 93
MINIMUM 53 5:12 AM 37 2002 51 2 56
AVERAGE 75 68 7 75
PRECIPITATION (IN)
TODAY 0.00 1.35 1979 0.03 -0.03 T
MONTH TO DATE 0.23 0.54 -0.31 0.19
SINCE JUN 1 1.90 3.07 -1.17 1.52
SINCE JAN 1 6.82 8.58 -1.76 6.78
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 1 -1 0
MONTH TO DATE 4 7 -3 6
SINCE JUN 1 100 147 -47 76
SINCE JUL 1 9 21 -12 22
COOLING
TODAY 10 5 5 10
MONTH TO DATE 113 114 -1 125
SINCE JUN 1 415 365 50 413
SINCE JAN 1 415 369 46 416
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 5.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 69
LOWEST 8
AVERAGE 39
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 97 1973
MINIMUM TEMPERATURE (F) 51 38 2016
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 6:17 AM MDT SUNSET 8:01 PM MDT
AUGUST 20 2025........SUNRISE 6:18 AM MDT SUNSET 8:00 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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