Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 130728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT THU AUG 13 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 12 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 88 1:46 PM 100 2018 88 0 90
MINIMUM 57 2:44 AM 37 2004 53 4 49
AVERAGE 73 70 3
PRECIPITATION (IN)
YESTERDAY T 0.57 1966 0.03 -0.03 0.00
MONTH TO DATE T 0.37 -0.37 0.22
SINCE JUN 1 0.68 2.90 -2.22 1.89
SINCE JAN 1 4.33 8.41 -4.08 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 8 6 2 5
MONTH TO DATE 103 78 25 54
SINCE JUN 1 480 329 151 356
SINCE JAN 1 481 333 148 356
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 8.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 75 11:00 PM
LOWEST 26 3:00 PM
AVERAGE 51
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 99 2000
MINIMUM TEMPERATURE (F) 52 38 2002
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.
$$