Climatological Report (Daily)
Issued by NWS
Issued by NWS
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967
CDUS45 KRIW 120728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT WED AUG 12 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 11 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 97 1:12 PM 99 2000 88 9 85
MINIMUM 60 3:36 AM 39 2004 53 7 44
AVERAGE 79 70 9
PRECIPITATION (IN)
YESTERDAY 0.00 0.68 2022 0.02 -0.02 0.00
MONTH TO DATE T 0.34 -0.34 0.22
SINCE JUN 1 0.68 2.87 -2.19 1.89
SINCE JAN 1 4.33 8.38 -4.05 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 0 0 0
MONTH TO DATE 3 0 3 4
SINCE JUN 1 95 140 -45 100
SINCE JUL 1 3 14 -11 9
COOLING
YESTERDAY 14 6 8 0
MONTH TO DATE 95 72 23 49
SINCE JUN 1 472 323 149 351
SINCE JAN 1 473 327 146 351
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 12.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 51 3:00 AM
LOWEST 7 4:00 PM
AVERAGE 29
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 100 2018
MINIMUM TEMPERATURE (F) 53 37 2004
SUNRISE AND SUNSET
AUGUST 12 2026........SUNRISE 6:09 AM MDT SUNSET 8:12 PM MDT
AUGUST 13 2026........SUNRISE 6:10 AM MDT SUNSET 8:11 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$