480
CDUS45 KRIW 290731
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT MON JUN 29 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 28 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 73 3:08 PM 97 1990 85 -12 96
2012
2018
MINIMUM 54 4:51 AM 38 2000 49 5 52
AVERAGE 64 67 -3
PRECIPITATION (IN)
YESTERDAY 0.00 0.94 1959 0.03 -0.03 0.01
MONTH TO DATE 0.55 1.26 -0.71 0.53
SINCE JUN 1 0.55 1.26 -0.71 0.53
SINCE JAN 1 4.20 6.77 -2.57 5.45
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0 0.0 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 1 2 -1 0
MONTH TO DATE 88 123 -35 91
SINCE JUN 1 88 123 -35 91
SINCE JUL 1 5836 7483 -1647 7022
COOLING
YESTERDAY 0 3 -3 9
MONTH TO DATE 35 45 -10 69
SINCE JUN 1 35 45 -10 69
SINCE JAN 1 36 49 -13 69
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 19.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 57 3:00 AM
LOWEST 19 4:00 PM
AVERAGE 38
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 99 2002
2007
MINIMUM TEMPERATURE (F) 49 37 2024
SUNRISE AND SUNSET
JUNE 29 2026..........SUNRISE 5:30 AM MDT SUNSET 8:49 PM MDT
JUNE 30 2026..........SUNRISE 5:30 AM MDT SUNSET 8:49 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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