Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 170732
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT FRI OCT 17 2025
...................................
...THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 16 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 53 11:37 AM 83 1991 59 -6 78
MINIMUM 35 10:08 PM 18 1992 31 4 30
AVERAGE 44 45 -1
PRECIPITATION (IN)
YESTERDAY 0.35 2.06 1998 0.04 0.31 0.00
MONTH TO DATE 1.32 0.70 0.62 0.00
SINCE SEP 1 3.87 1.65 2.22 0.24
SINCE JAN 1 11.18 10.48 0.70 7.22
SNOWFALL (IN)
YESTERDAY 0.0 16.0 1998 0.2 -0.2 0.0
MONTH TO DATE 0.0 3.1 -3.1 0.0
SINCE SEP 1 0.0 4.6 -4.6 0.0
SINCE JUL 1 0.0 4.6 -4.6 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 21 20 1 11
MONTH TO DATE 222 269 -47 154
SINCE SEP 1 335 483 -148 256
SINCE JUL 1 345 528 -183 294
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 25 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 11.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
HAIL
FOG
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 1:00 AM
LOWEST 56 12:00 PM
AVERAGE 78
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 59 79 2003
MINIMUM TEMPERATURE (F) 30 19 1968
1996
2012
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 7:22 AM MDT SUNSET 6:19 PM MDT
OCTOBER 18 2025.......SUNRISE 7:23 AM MDT SUNSET 6:18 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$