266
CDUS45 KRIW 240045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT WED SEP 23 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 23 2026
VALID TODAY AS OF 0600 PM LOCAL TIME.
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)
TODAY
MAXIMUM 74 2:23 PM 87 2015 70 4 64
MINIMUM 48 6:24 AM 24 2000 42 6 45
AVERAGE 61 56 5 55
PRECIPITATION (IN)
TODAY 0.00 0.58 2016 0.04 -0.04 T
MONTH TO DATE 1.53 0.53 1.00 0.99
SINCE SEP 1 1.53 0.53 1.00 0.99
SINCE JAN 1 4.50 6.89 -2.39 7.24
SNOWFALL (IN)
TODAY MM 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 MM
DEGREE DAYS
HEATING
TODAY 4 9 -5 10
MONTH TO DATE 56 126 -70 76
SINCE SEP 1 56 126 -70 76
SINCE JUL 1 58 162 -104 79
COOLING
TODAY 0 0 0 0
MONTH TO DATE 43 28 15 37
SINCE SEP 1 43 28 15 37
SINCE JAN 1 756 496 260 611
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 5.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83
LOWEST 29
AVERAGE 56
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 87 2020
MINIMUM TEMPERATURE (F) 41 24 2000
SUNRISE AND SUNSET
SEPTEMBER 23 2026.....SUNRISE 7:02 AM MDT SUNSET 7:09 PM MDT
SEPTEMBER 24 2026.....SUNRISE 7:03 AM MDT SUNSET 7:07 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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