656
CDUS45 KRIW 210727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT TUE OCT 21 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 20 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 52 2:56 PM 77 1992 58 -6 69
2003
MINIMUM 32 10:42 PM 15 1949 29 3 34
AVERAGE 42 44 -2
PRECIPITATION (IN)
YESTERDAY 0.02 0.48 1949 0.03 -0.01 0.00
MONTH TO DATE 1.49 0.85 0.64 0.45
SINCE SEP 1 4.04 1.80 2.24 0.69
SINCE JAN 1 11.35 10.63 0.72 7.67
SNOWFALL (IN)
YESTERDAY MM 11.5 1949 0.3 MM 0.0
MONTH TO DATE 0.3 4.2 -3.9 T
SINCE SEP 1 0.3 5.7 -5.4 T
SINCE JUL 1 0.3 5.7 -5.4 T
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 22 1 13
MONTH TO DATE 301 353 -52 230
SINCE SEP 1 414 567 -153 332
SINCE JUL 1 424 612 -188 370
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 17 30 -13 63
SINCE JAN 1 467 442 25 538
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION NE (30)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 13.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT SNOW
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 3:00 AM
LOWEST 27 1:00 PM
AVERAGE 62
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 79 1992
MINIMUM TEMPERATURE (F) 29 12 1949
SUNRISE AND SUNSET
OCTOBER 21 2025.......SUNRISE 7:27 AM MDT SUNSET 6:13 PM MDT
OCTOBER 22 2025.......SUNRISE 7:28 AM MDT SUNSET 6:12 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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