638
CDUS45 KRIW 300726
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT TUE JUN 30 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 29 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 72 3:43 PM 99 2002 85 -13 87
2007
MINIMUM 49 3:21 AM 37 2024 49 0 52
AVERAGE 61 67 -6
PRECIPITATION (IN)
YESTERDAY T 0.55 1947 0.04 -0.04 0.00
MONTH TO DATE 0.55 1.30 -0.75 0.53
SINCE JUN 1 0.55 1.30 -0.75 0.53
SINCE JAN 1 4.20 6.81 -2.61 5.45
SNOWFALL (IN)
YESTERDAY MM 0.0 2020 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 30.1 71.8 -41.7 26.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 4 2 2 0
MONTH TO DATE 92 125 -33 91
SINCE JUN 1 92 125 -33 91
SINCE JUL 1 5840 7485 -1645 7022
COOLING
YESTERDAY 0 4 -4 5
MONTH TO DATE 35 49 -14 74
SINCE JUN 1 35 49 -14 74
SINCE JAN 1 36 53 -17 74
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 48 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 65 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 23.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 47 7:00 AM
LOWEST 18 2:00 PM
AVERAGE 33
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 102 1990
MINIMUM TEMPERATURE (F) 49 35 1968
SUNRISE AND SUNSET
JUNE 30 2026..........SUNRISE 5:30 AM MDT SUNSET 8:49 PM MDT
JULY 1 2026..........SUNRISE 5:31 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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