Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 310045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU JUL 30 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR JULY 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 89 3:00 PM 101 2006 90 -1 84
MINIMUM 61 5:17 AM 38 1971 55 6 53
AVERAGE 75 72 3 69
PRECIPITATION (IN)
TODAY 0.00 0.84 1985 0.04 -0.04 0.18
MONTH TO DATE 0.13 1.16 -1.03 1.13
SINCE JUN 1 0.68 2.50 -1.82 1.66
SINCE JAN 1 4.33 8.01 -3.68 6.58
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 0
MONTH TO DATE 0 9 -9 5
SINCE JUN 1 92 135 -43 96
SINCE JUL 1 0 9 -9 5
COOLING
TODAY 10 8 2 4
MONTH TO DATE 337 195 142 223
SINCE JUN 1 372 246 126 298
SINCE JAN 1 373 250 123 298
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 8.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75
LOWEST 25
AVERAGE 50
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 99 1988
MINIMUM TEMPERATURE (F) 55 42 1968
SUNRISE AND SUNSET
JULY 30 2026..........SUNRISE 5:55 AM MDT SUNSET 8:29 PM MDT
JULY 31 2026..........SUNRISE 5:56 AM MDT SUNSET 8:28 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$