987
CDUS45 KRIW 210045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SAT JUN 20 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 20 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 81 1:32 PM 97 1988 82 -1 95
MINIMUM 49 5:11 AM 37 1973 46 3 49
1996
AVERAGE 65 64 1 72
PRECIPITATION (IN)
TODAY 0.03 0.68 1947 0.04 -0.01 0.00
MONTH TO DATE 0.03 0.95 -0.92 0.52
SINCE JUN 1 0.03 0.95 -0.92 0.52
SINCE JAN 1 3.68 6.46 -2.78 5.44
SNOWFALL (IN)
TODAY MM 0.0 MM 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 29.6 71.8 -42.2 26.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 81 105 -24 73
SINCE JUN 1 81 105 -24 73
SINCE JUL 1 5829 7465 -1636 7004
COOLING
TODAY 0 2 -2 7
MONTH TO DATE 16 24 -8 43
SINCE JUN 1 16 24 -8 43
SINCE JAN 1 17 28 -11 43
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 54 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 81 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 7.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74
LOWEST 26
AVERAGE 50
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 100 2016
MINIMUM TEMPERATURE (F) 47 37 1960
2012
SUNRISE AND SUNSET
JUNE 20 2026..........SUNRISE 5:27 AM MDT SUNSET 8:48 PM MDT
JUNE 21 2026..........SUNRISE 5:27 AM MDT SUNSET 8:48 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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