Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 100045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SUN AUG 09 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 9 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 98 2:53 PM 99 1992 89 9 82
MINIMUM 52 5:16 AM 39 2025 53 -1 39
AVERAGE 75 71 4 61
PRECIPITATION (IN)
TODAY T 0.77 1974 0.03 -0.03 0.00
MONTH TO DATE T 0.29 -0.29 0.22
SINCE JUN 1 0.68 2.82 -2.14 1.89
SINCE JAN 1 4.33 8.33 -4.00 6.81
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 0 0 4
MONTH TO DATE 3 0 3 4
SINCE JUN 1 95 140 -45 100
SINCE JUL 1 3 14 -11 9
COOLING
TODAY 10 6 4 0
MONTH TO DATE 69 60 9 49
SINCE JUN 1 446 311 135 351
SINCE JAN 1 447 315 132 351
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 11.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 38
LOWEST 8
AVERAGE 23
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 101 2022
MINIMUM TEMPERATURE (F) 53 39 2002
SUNRISE AND SUNSET
AUGUST 9 2026........SUNRISE 6:06 AM MDT SUNSET 8:16 PM MDT
AUGUST 10 2026........SUNRISE 6:07 AM MDT SUNSET 8:15 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$