Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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CDUS45 KRIW 280727
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT MON SEP 28 2026
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 27 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 73 4:31 PM 86 2001 68 5 77
MINIMUM 50 6:54 AM 21 1996 40 10 44
AVERAGE 62 54 8 61
PRECIPITATION (IN)
YESTERDAY 0.02 0.44 0.03 -0.01 0.00
MONTH TO DATE 1.55 0.67 0.88 0.99
SINCE SEP 1 1.55 0.67 0.88 0.99
SINCE JAN 1 4.52 7.03 -2.51 7.24
SNOWFALL (IN)
YESTERDAY 0.0 5.4 1999 0.0
MONTH TO DATE 0.0 0.0
SINCE SEP 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 3 11 -8 4
MONTH TO DATE 65 168 -103 91
SINCE SEP 1 65 168 -103 91
SINCE JUL 1 67 204 -137 94
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 44 28 16 37
SINCE SEP 1 44 28 16 37
SINCE JAN 1 757 496 261 611
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 8.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 69 8:00 PM
LOWEST 30 3:00 PM
AVERAGE 50
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 86 2001
2024
MINIMUM TEMPERATURE (F) 39 26 1999
SUNRISE AND SUNSET
SEPTEMBER 28 2026.....SUNRISE 7:08 AM MDT SUNSET 7:00 PM MDT
SEPTEMBER 29 2026.....SUNRISE 7:09 AM MDT SUNSET 6:58 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$