121
CDUS45 KRIW 230045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SAT AUG 22 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR AUGUST 22 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 84 4:59 PM 97 2009 85 -1 81
2010
MINIMUM 59 5:14 AM 36 1966 50 9 54
AVERAGE 72 68 4 68
PRECIPITATION (IN)
TODAY 0.00 0.38 1992 0.02 -0.02 0.00
MONTH TO DATE 1.88 0.60 1.28 0.23
SINCE JUN 1 2.56 3.13 -0.57 1.90
SINCE JAN 1 6.21 8.64 -2.43 6.82
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 5 10 -5 4
SINCE JUN 1 97 150 -53 100
SINCE JUL 1 5 24 -19 9
COOLING
TODAY 7 4 3 3
MONTH TO DATE 154 126 28 136
SINCE JUN 1 531 377 154 438
SINCE JAN 1 532 381 151 438
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 5.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93
LOWEST 41
AVERAGE 67
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 98 2020
MINIMUM TEMPERATURE (F) 50 29 2015
SUNRISE AND SUNSET
AUGUST 22 2026........SUNRISE 6:20 AM MDT SUNSET 7:57 PM MDT
AUGUST 23 2026........SUNRISE 6:21 AM MDT SUNSET 7:55 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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