Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 140045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU AUG 13 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 13 2026...
VALID TODAY AS OF 0600 PM LOCAL TIME.
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)
TODAY
MAXIMUM 68 2:28 PM 99 2000 88 -20 97
MINIMUM 60 11:44 AM 38 2002 52 8 51
AVERAGE 64 70 -6 74
PRECIPITATION (IN)
TODAY 0.90R 0.64 1990 0.03 0.87 T
MONTH TO DATE 0.90 0.40 0.50 0.22
SINCE JUN 1 1.58 2.93 -1.35 1.89
SINCE JAN 1 5.23 8.44 -3.21 6.81
SNOWFALL (IN)
TODAY MM 0.0 MM 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 MM
DEGREE DAYS
HEATING
TODAY 1 1 0 0
MONTH TO DATE 4 1 3 4
SINCE JUN 1 96 141 -45 100
SINCE JUL 1 4 15 -11 9
COOLING
TODAY 0 6 -6 9
MONTH TO DATE 103 84 19 63
SINCE JUN 1 480 335 145 365
SINCE JAN 1 481 339 142 365
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 10.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97
LOWEST 72
AVERAGE 85
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 99 2003
MINIMUM TEMPERATURE (F) 52 39 2023
SUNRISE AND SUNSET
AUGUST 13 2026........SUNRISE 6:10 AM MDT SUNSET 8:11 PM MDT
AUGUST 14 2026........SUNRISE 6:11 AM MDT SUNSET 8:09 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$