136
CDUS45 KRIW 130045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT FRI SEP 12 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 12 2025
VALID TODAY AS OF 0600 PM LOCAL TIME.
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)
TODAY
MAXIMUM 75 2:13 PM 88 2017 76 -1 73
2018
MINIMUM 52 6:00 AM 28 2014 46 6 47
AVERAGE 64 61 3 60
PRECIPITATION (IN)
TODAY 0.00 0.99 1998 0.02 -0.02 0.01
MONTH TO DATE T 0.22 -0.22 0.06
SINCE SEP 1 T 0.22 -0.22 0.06
SINCE JAN 1 6.25 6.58 -0.33 5.49
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 1 5 -4 5
MONTH TO DATE 13 46 -33 8
SINCE SEP 1 13 46 -33 8
SINCE JUL 1 16 82 -66 26
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 36 22 14 47
SINCE SEP 1 36 22 14 47
SINCE JAN 1 610 490 120 589
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 6.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 64
LOWEST 30
AVERAGE 47
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 90 2015
MINIMUM TEMPERATURE (F) 46 31 2014
SUNRISE AND SUNSET
SEPTEMBER 12 2025.....SUNRISE 6:51 AM MDT SUNSET 7:28 PM MDT
SEPTEMBER 13 2025.....SUNRISE 6:52 AM MDT SUNSET 7:27 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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