119
CDUS45 KRIW 210732
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT WED OCT 21 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 20 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 72 3:02 PM 77 1992 58 14 52
2003
MINIMUM 40 11:55 PM 15 1949 29 11 32
AVERAGE 56 44 12
PRECIPITATION (IN)
YESTERDAY 0.00 0.48 1949 0.03 -0.03 0.02
MONTH TO DATE 0.84 0.85 -0.01 1.49
SINCE SEP 1 1.60 1.80 -0.20 4.04
SINCE JAN 1 7.94 10.63 -2.69 11.35
SNOWFALL (IN)
YESTERDAY 0.0 11.5 1949 0.3 -0.3 T
MONTH TO DATE 0.0 4.2 -4.2 0.3
SINCE SEP 1 0.0 5.7 -5.7 0.3
SINCE JUL 1 0.0 5.7 -5.7 0.3
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 9 22 -13 23
MONTH TO DATE 191 353 -162 301
SINCE SEP 1 299 567 -268 414
SINCE JUL 1 304 612 -308 424
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 2 0 2 0
SINCE SEP 1 47 30 17 17
SINCE JAN 1 640 442 198 467
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WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 9.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 3:00 AM
LOWEST 30 3:00 PM
AVERAGE 56
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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 2026.......SUNRISE 7:27 AM MDT SUNSET 6:14 PM MDT
OCTOBER 22 2026.......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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