917
CDUS45 KRIW 110728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT THU JUN 11 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 10 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 75 4:02 PM 94 1988 77 -2 90
MINIMUM 40 11:59 PM 25 2019 44 -4 39
AVERAGE 58 61 -3
PRECIPITATION (IN)
YESTERDAY T 1.22 1969 0.04 -0.04 0.00
MONTH TO DATE T 0.53 -0.53 0.23
SINCE JUN 1 T 0.53 -0.53 0.23
SINCE JAN 1 3.65 6.04 -2.39 5.15
SNOWFALL (IN)
YESTERDAY MM 0.0 2021 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
YESTERDAY 7 5 2 0
MONTH TO DATE 19 65 -46 69
SINCE JUN 1 19 65 -46 69
SINCE JUL 1 5767 7425 -1658 7000
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 14 9 5 3
SINCE JUN 1 14 9 5 3
SINCE JAN 1 15 13 2 3
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 45 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 58 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 19.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 65 2:00 AM
LOWEST 11 3:00 PM
AVERAGE 38
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 78 95 2016
MINIMUM TEMPERATURE (F) 44 33 2005
SUNRISE AND SUNSET
JUNE 11 2026..........SUNRISE 5:27 AM MDT SUNSET 8:45 PM MDT
JUNE 12 2026..........SUNRISE 5:27 AM MDT SUNSET 8:45 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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