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CDUS45 KRIW 220732
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT FRI MAY 22 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 21 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 50 1:40 PM 87 1964 69 -19 61
2006
MINIMUM 32 9:36 PM 26 2001 39 -7 31
AVERAGE 41 54 -13
PRECIPITATION (IN)
YESTERDAY 0.51 1.04 1962 0.08 0.43 0.02
MONTH TO DATE 1.59 1.52 0.07 0.74
SINCE MAR 1 3.03 3.77 -0.74 3.66
SINCE JAN 1 3.57 4.82 -1.25 4.38
SNOWFALL (IN)
YESTERDAY 0.0 2.5 2019 0.0 0.0 0.0
MONTH TO DATE 2.5 2.3 0.2 0.3
SINCE MAR 1 13.9 23.1 -9.2 16.0
SINCE JUL 1 29.6 71.4 -41.8 26.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 24 11 13 19
MONTH TO DATE 316 318 -2 283
SINCE MAR 1 1522 1907 -385 1832
SINCE JUL 1 5699 7269 -1570 6847
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 10.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
LIGHT RAIN
SNOW
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 6:00 PM
LOWEST 49 12:00 AM
AVERAGE 75
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 86 1980
2006
MINIMUM TEMPERATURE (F) 39 22 2022
SUNRISE AND SUNSET
MAY 22 2026...........SUNRISE 5:36 AM MDT SUNSET 8:29 PM MDT
MAY 23 2026...........SUNRISE 5:35 AM MDT SUNSET 8:30 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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