021
CDUS45 KRIW 120045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT FRI SEP 11 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 11 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 86 3:15 PM 87 2004 77 9 86
2017
2018
MINIMUM 63 6:25 AM 30 2014 46 17 60
AVERAGE 75 61 14 73
PRECIPITATION (IN)
TODAY 0.00 1.11 2019 0.02 -0.02 0.00
MONTH TO DATE T 0.20 -0.20 T
SINCE SEP 1 T 0.20 -0.20 T
SINCE JAN 1 2.97 6.56 -3.59 6.25
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 0 5 -5 0
MONTH TO DATE 3 41 -38 12
SINCE SEP 1 3 41 -38 12
SINCE JUL 1 5 77 -72 15
COOLING
TODAY 10 1 9 8
MONTH TO DATE 47 21 26 36
SINCE SEP 1 47 21 26 36
SINCE JAN 1 760 489 271 610
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 11.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 38
LOWEST 12
AVERAGE 25
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 88 2017
2018
MINIMUM TEMPERATURE (F) 46 28 2014
SUNRISE AND SUNSET
SEPTEMBER 11 2026.....SUNRISE 6:49 AM MDT SUNSET 7:31 PM MDT
SEPTEMBER 12 2026.....SUNRISE 6:50 AM MDT SUNSET 7:29 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