718
CDUS45 KRIW 180726
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT FRI SEP 18 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 17 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 76 2:53 PM 85 2004 74 2 69
2018
MINIMUM 54 7:26 AM 34 1996 44 10 45
AVERAGE 65 59 6 57
PRECIPITATION (IN)
YESTERDAY 0.01 0.44 0.02 -0.01 0.00
MONTH TO DATE 0.01 0.34 -0.33 0.08
SINCE SEP 1 0.01 0.34 -0.33 0.08
SINCE JAN 1 2.98 6.70 -3.72 6.33
SNOWFALL (IN)
YESTERDAY 0.0 1.5 2003 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 0 7 -7 8
MONTH TO DATE 21 77 -56 45
SINCE SEP 1 21 77 -56 45
SINCE JUL 1 23 113 -90 48
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 43 27 16 36
SINCE SEP 1 43 27 16 36
SINCE JAN 1 756 495 261 610
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 7.8
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 67 10:00 PM
LOWEST 34 2:00 PM
AVERAGE 51
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 90 2014
MINIMUM TEMPERATURE (F) 44 28 2003
SUNRISE AND SUNSET
SEPTEMBER 18 2026.....SUNRISE 6:57 AM MDT SUNSET 7:18 PM MDT
SEPTEMBER 19 2026.....SUNRISE 6:58 AM MDT SUNSET 7:16 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