Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 220733
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT WED JUL 22 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR JULY 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 91 5:12 PM 100 1982 90 1 96
MINIMUM 67 3:19 AM 39 1949 54 13 51
AVERAGE 79 72 7
PRECIPITATION (IN)
YESTERDAY 0.00 1.33 1951 0.04 -0.04 0.00
MONTH TO DATE 0.05 0.82 -0.77 0.45
SINCE JUN 1 0.60 2.16 -1.56 0.98
SINCE JAN 1 4.25 7.67 -3.42 5.90
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 JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 9 -9 5
SINCE JUN 1 92 135 -43 96
SINCE JUL 1 0 9 -9 5
COOLING
YESTERDAY 14 7 7 9
MONTH TO DATE 209 123 86 152
SINCE JUN 1 244 174 70 227
SINCE JAN 1 245 178 67 227
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 7.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 53 11:00 PM
LOWEST 27 5:00 PM
AVERAGE 40
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 103 2005
MINIMUM TEMPERATURE (F) 54 44 1978
SUNRISE AND SUNSET
JULY 22 2026..........SUNRISE 5:47 AM MDT SUNSET 8:37 PM MDT
JULY 23 2026..........SUNRISE 5:48 AM MDT SUNSET 8:36 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$