246
CDUS45 KRIW 150728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT AUG 15 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR AUGUST 14 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 81 5:19 PM 99 2003 87 -6 94
MINIMUM 57 1:05 AM 39 2023 52 5 57
AVERAGE 69 70 -1
PRECIPITATION (IN)
YESTERDAY 0.00 0.20 2008 0.02 -0.02 0.00
MONTH TO DATE 1.26 0.42 0.84 0.22
SINCE JUN 1 1.94 2.95 -1.01 1.89
SINCE JAN 1 5.59 8.46 -2.87 6.81
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 5 2 3 4
SINCE JUN 1 97 142 -45 100
SINCE JUL 1 5 16 -11 9
COOLING
YESTERDAY 4 5 -1 11
MONTH TO DATE 107 89 18 74
SINCE JUN 1 484 340 144 376
SINCE JAN 1 485 344 141 376
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WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 9.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 1:00 AM
LOWEST 32 5:00 PM
AVERAGE 64
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 95 1992
1994
2015
MINIMUM TEMPERATURE (F) 52 41 1974
SUNRISE AND SUNSET
AUGUST 15 2026........SUNRISE 6:12 AM MDT SUNSET 8:08 PM MDT
AUGUST 16 2026........SUNRISE 6:13 AM MDT SUNSET 8:06 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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