Climatological Report (Daily)
Issued by NWS
Issued by NWS
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917
CDUS45 KRIW 060728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SUN SEP 06 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 5 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 91 12:32 PM 98 2020 81 10 68
MINIMUM 57 11:29 PM 34 1965 46 11 38
AVERAGE 74 63 11
PRECIPITATION (IN)
YESTERDAY 0.00 0.24 1993 0.03 -0.03 0.00
MONTH TO DATE 0.01 0.11 -0.10 0.01
SINCE SEP 1 0.01 0.11 -0.10 0.01
SINCE JAN 1 6.35 8.94 -2.59 7.32
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 12
MONTH TO DATE 0 16 -16 15
SINCE SEP 1 0 16 -16 15
SINCE JUL 1 5 61 -56 25
COOLING
YESTERDAY 9 2 7 0
MONTH TO DATE 29 11 18 4
SINCE SEP 1 29 11 18 4
SINCE JAN 1 622 423 199 454
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 9.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 51 11:00 PM
LOWEST 16 4:00 PM
AVERAGE 34
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 96 1978
2022
MINIMUM TEMPERATURE (F) 46 32 2025
SUNRISE AND SUNSET
SEPTEMBER 6 2026.....SUNRISE 6:36 AM MDT SUNSET 7:31 PM MDT
SEPTEMBER 7 2026.....SUNRISE 6:37 AM MDT SUNSET 7:30 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$