Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 290045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT TUE JUL 28 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR JULY 28 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 96 4:47 PM 100 2006 90 6 90
MINIMUM 64 5:04 AM 43 1971 55 9 51
AVERAGE 80 72 8 71
PRECIPITATION (IN)
TODAY 0.00 1.06 1987 0.03 -0.03 0.00
MONTH TO DATE 0.12 1.08 -0.96 0.45
SINCE JUN 1 0.67 2.42 -1.75 0.98
SINCE JAN 1 4.32 7.93 -3.61 5.90
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 15 8 7 6
MONTH TO DATE 315 179 136 212
SINCE JUN 1 350 230 120 287
SINCE JAN 1 351 234 117 287
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 5.4
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 63
LOWEST 16
AVERAGE 40
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 104 2006
MINIMUM TEMPERATURE (F) 55 36 2015
SUNRISE AND SUNSET
JULY 28 2026..........SUNRISE 5:53 AM MDT SUNSET 8:31 PM MDT
JULY 29 2026..........SUNRISE 5:54 AM MDT SUNSET 8:30 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$