026
CDUS45 KRIW 180045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT WED JUN 17 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 17 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 77 3:15 PM 97 1940 80 -3 76
2022
MINIMUM 52 4:26 AM 34 2000 46 6 46
AVERAGE 65 63 2 61
PRECIPITATION (IN)
TODAY 0.00 1.25 1998 0.04 -0.04 T
MONTH TO DATE T 0.83 -0.83 0.52
SINCE JUN 1 T 0.83 -0.83 0.52
SINCE JAN 1 3.65 6.34 -2.69 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 4 -4 4
MONTH TO DATE 70 96 -26 73
SINCE JUN 1 70 96 -26 73
SINCE JUL 1 5818 7456 -1638 7004
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 16 18 -2 29
SINCE JUN 1 16 18 -2 29
SINCE JAN 1 17 22 -5 29
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 29 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 10.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 69
LOWEST 26
AVERAGE 48
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 97 1994
MINIMUM TEMPERATURE (F) 46 31 2020
SUNRISE AND SUNSET
JUNE 17 2026..........SUNRISE 5:27 AM MDT SUNSET 8:47 PM MDT
JUNE 18 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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