Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 290728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT AUG 29 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 28 2026...
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)
YESTERDAY
MAXIMUM 90 12:32 PM 95 1995 84 6 81
2012
MINIMUM 58 5:14 AM 34 2004 48 10 54
AVERAGE 74 66 8
PRECIPITATION (IN)
YESTERDAY T 0.23 1964 0.02 -0.02 0.03
MONTH TO DATE 2.01 0.73 1.28 0.70
SINCE JUN 1 2.69 3.26 -0.57 2.37
SINCE JAN 1 6.34 8.77 -2.43 7.29
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0 0.0 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 0
DEGREE DAYS
HEATING
YESTERDAY 0 2 -2 0
MONTH TO DATE 5 21 -16 4
SINCE JUN 1 97 161 -64 100
SINCE JUL 1 5 35 -30 9
COOLING
YESTERDAY 9 3 6 3
MONTH TO DATE 201 147 54 146
SINCE JUN 1 578 398 180 448
SINCE JAN 1 579 402 177 448
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 39 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 13.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 1:00 AM
LOWEST 22 4:00 PM
AVERAGE 49
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 97 2012
MINIMUM TEMPERATURE (F) 48 36 2024
SUNRISE AND SUNSET
AUGUST 29 2026........SUNRISE 6:27 AM MDT SUNSET 7:45 PM MDT
AUGUST 30 2026........SUNRISE 6:28 AM MDT SUNSET 7:44 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$