312
CDUS45 KRIW 230045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT TUE SEP 22 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 22 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 4:45 PM 86 2007 71 3 61
MINIMUM 47 6:31 AM 25 2000 42 5 46
AVERAGE 61 56 5 54
PRECIPITATION (IN)
TODAY 0.00 0.91 2025 0.03 -0.03 0.91
MONTH TO DATE 1.53 0.49 1.04 0.99
SINCE SEP 1 1.53 0.49 1.04 0.99
SINCE JAN 1 4.50 6.85 -2.35 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 11
MONTH TO DATE 52 117 -65 66
SINCE SEP 1 52 117 -65 66
SINCE JUL 1 54 153 -99 69
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 20 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 6.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89
LOWEST 31
AVERAGE 60
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 87 2015
MINIMUM TEMPERATURE (F) 42 24 2000
SUNRISE AND SUNSET
SEPTEMBER 22 2026.....SUNRISE 7:01 AM MDT SUNSET 7:11 PM MDT
SEPTEMBER 23 2026.....SUNRISE 7:02 AM MDT SUNSET 7:09 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page