063
CDUS45 KRIW 300732
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT SAT AUG 30 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR AUGUST 29 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 79 4:00 PM 97 2012 83 -4 79
MINIMUM 53 2:25 AM 36 2024 48 5 36
AVERAGE 66 66 0
PRECIPITATION (IN)
YESTERDAY 0.00 0.15 1969 0.02 -0.02 0.00
MONTH TO DATE 0.70 0.75 -0.05 0.39
SINCE JUN 1 2.37 3.28 -0.91 1.72
SINCE JAN 1 7.29 8.79 -1.50 6.98
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 7
MONTH TO DATE 4 23 -19 17
SINCE JUN 1 100 163 -63 87
SINCE JUL 1 9 37 -28 33
COOLING
YESTERDAY 1 3 -2 0
MONTH TO DATE 147 150 -3 182
SINCE JUN 1 449 401 48 470
SINCE JAN 1 449 405 44 473
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WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 7.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 25 4:00 PM
AVERAGE 63
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 83 96 1948
MINIMUM TEMPERATURE (F) 48 34 1965
2024
SUNRISE AND SUNSET
AUGUST 30 2025........SUNRISE 6:29 AM MDT SUNSET 7:43 PM MDT
AUGUST 31 2025........SUNRISE 6:30 AM MDT SUNSET 7:41 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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