Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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CDUS45 KRIW 210732
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT TUE JUL 21 2026
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR JULY 20 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 99R 4:16 PM 99 2005 89 10 94
MINIMUM 62 4:48 AM 46 1997 57 5 62
AVERAGE 81 73 8 78
PRECIPITATION (IN)
YESTERDAY 0.00 0.07 0.02 -0.02 0.00
MONTH TO DATE 0.12 0.35 -0.23 0.02
SINCE JUN 1 0.37 1.29 -0.92 0.92
SINCE JAN 1 1.80 5.75 -3.95 5.44
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0
MONTH TO DATE 0.0 0.0
SINCE JUN 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 6 -6 0
SINCE JUN 1 70 121 -51 78
SINCE JUL 1 0 6 -6 0
COOLING
YESTERDAY 16 8 8 13
MONTH TO DATE 241 133 108 172
SINCE JUN 1 297 200 97 288
SINCE JAN 1 320 208 112 294
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 9.5
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 46 5:00 AM
LOWEST 14 3:00 PM
AVERAGE 30
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 98 2007
MINIMUM TEMPERATURE (F) 57 49 2009
SUNRISE AND SUNSET
JULY 21 2026..........SUNRISE 5:54 AM MDT SUNSET 8:46 PM MDT
JULY 22 2026..........SUNRISE 5:55 AM MDT SUNSET 8:45 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$