244
CDUS45 KRIW 200727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT SAT JUN 20 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 19 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 79 3:56 PM 99 1989 81 -2 95
MINIMUM 43 4:20 AM 38 2007 46 -3 44
AVERAGE 61 64 -3
PRECIPITATION (IN)
YESTERDAY 0.00 2.15 1986 0.04 -0.04 0.00
MONTH TO DATE T 0.91 -0.91 0.52
SINCE JUN 1 T 0.91 -0.91 0.52
SINCE JAN 1 3.65 6.42 -2.77 5.44
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 0
DEGREE DAYS
HEATING
YESTERDAY 4 3 1 0
MONTH TO DATE 81 102 -21 73
SINCE JUN 1 81 102 -21 73
SINCE JUL 1 5829 7462 -1633 7004
COOLING
YESTERDAY 0 2 -2 5
MONTH TO DATE 16 22 -6 36
SINCE JUN 1 16 22 -6 36
SINCE JAN 1 17 26 -9 36
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 8.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 68 4:00 AM
LOWEST 21 3:00 PM
AVERAGE 45
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 97 1988
MINIMUM TEMPERATURE (F) 46 37 1973
1996
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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