Climatological Report (Daily)
Issued by NWS
Issued by NWS
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083
CDUS45 KRIW 220726
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT FRI AUG 22 2025
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 21 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 86 1:00 PM 96 2024 86 0 96
MINIMUM 55 4:43 AM 38 2016 50 5 60
AVERAGE 71 68 3
PRECIPITATION (IN)
YESTERDAY T 0.28 1987 0.02 -0.02 T
MONTH TO DATE 0.23 0.58 -0.35 0.19
SINCE JUN 1 1.90 3.11 -1.21 1.52
SINCE JAN 1 6.82 8.62 -1.80 6.78
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 1 -1 0
MONTH TO DATE 4 9 -5 6
SINCE JUN 1 100 149 -49 76
SINCE JUL 1 9 23 -14 22
COOLING
YESTERDAY 6 4 2 13
MONTH TO DATE 133 122 11 149
SINCE JUN 1 435 373 62 437
SINCE JAN 1 435 377 58 440
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 7.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 11:00 PM
LOWEST 28 1:00 PM
AVERAGE 48
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 97 2009
2010
MINIMUM TEMPERATURE (F) 50 36 1966
SUNRISE AND SUNSET
AUGUST 22 2025........SUNRISE 6:20 AM MDT SUNSET 7:56 PM MDT
AUGUST 23 2025........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.
$$