353
CDUS45 KRIW 190045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT MON AUG 18 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR AUGUST 18 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 91 2:57 PM 99 1986 87 4 94
MINIMUM 52 5:23 AM 37 2009 51 1 62
AVERAGE 72 69 3 78
PRECIPITATION (IN)
TODAY 0.00 0.48 1978 0.02 -0.02 0.00
MONTH TO DATE 0.23 0.51 -0.28 0.19
SINCE JUN 1 1.90 3.04 -1.14 1.52
SINCE JAN 1 6.82 8.55 -1.73 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 6 -2 6
SINCE JUN 1 100 146 -46 76
SINCE JUL 1 9 20 -11 22
COOLING
TODAY 7 5 2 13
MONTH TO DATE 103 109 -6 115
SINCE JUN 1 405 360 45 403
SINCE JAN 1 405 364 41 406
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 7.4
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 66
LOWEST 12
AVERAGE 39
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 97 2019
MINIMUM TEMPERATURE (F) 51 37 2002
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 6:16 AM MDT SUNSET 8:03 PM MDT
AUGUST 19 2025........SUNRISE 6:17 AM MDT SUNSET 8:01 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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