010
CDUS45 KRIW 160731
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT TUE SEP 16 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 15 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 72 5:00 PM 90 2000 75 -3 83
2018
MINIMUM 48 11:59 PM 37 2004 45 3 43
2014
AVERAGE 60 60 0 63
PRECIPITATION (IN)
YESTERDAY 0.07 0.68 0.02 0.05 0.00
MONTH TO DATE 0.07 0.29 -0.22 0.06
SINCE SEP 1 0.07 0.29 -0.22 0.06
SINCE JAN 1 6.32 6.65 -0.33 5.49
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 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 5 6 -1 2
MONTH TO DATE 26 64 -38 24
SINCE SEP 1 26 64 -38 24
SINCE JUL 1 29 100 -71 42
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 36 25 11 47
SINCE SEP 1 36 25 11 47
SINCE JAN 1 610 493 117 589
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 51 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 10.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 8:00 AM
LOWEST 26 5:00 PM
AVERAGE 56
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 93 2000
MINIMUM TEMPERATURE (F) 44 35 2006
SUNRISE AND SUNSET
SEPTEMBER 16 2025.....SUNRISE 6:55 AM MDT SUNSET 7:21 PM MDT
SEPTEMBER 17 2025.....SUNRISE 6:56 AM MDT SUNSET 7:19 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