844
CDUS45 KRIW 180728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT THU JUN 18 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JUNE 17 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 77 3:15 PM 97 1940 80 -3 76
2022
MINIMUM 49 11:52 PM 34 2000 46 3 46
AVERAGE 63 63 0
PRECIPITATION (IN)
YESTERDAY 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)
YESTERDAY 0.0 0.0 2000 0.0 0.0 0.0
2001
2002
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 2 4 -2 4
MONTH TO DATE 72 96 -24 73
SINCE JUN 1 72 96 -24 73
SINCE JUL 1 5820 7456 -1636 7004
COOLING
YESTERDAY 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 11.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 69 5:00 AM
LOWEST 26 12:00 AM
AVERAGE 48
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 97 1994
MINIMUM TEMPERATURE (F) 46 31 2020
SUNRISE AND SUNSET
JUNE 18 2026..........SUNRISE 5:27 AM MDT SUNSET 8:48 PM MDT
JUNE 19 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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