370
CDUS45 KRIW 100045
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT WED SEP 09 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 9 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 82 4:59 PM 94 2021 77 5 80
MINIMUM 42 5:53 AM 24 2020 47 -5 47
AVERAGE 62 62 0 64
PRECIPITATION (IN)
TODAY 0.00 0.10 2022 0.02 -0.02 T
MONTH TO DATE T 0.15 -0.15 T
SINCE SEP 1 T 0.15 -0.15 T
SINCE JAN 1 2.97 6.51 -3.54 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 3 4 -1 1
MONTH TO DATE 3 31 -28 12
SINCE SEP 1 3 31 -28 12
SINCE JUL 1 5 67 -62 15
COOLING
TODAY 0 2 -2 0
MONTH TO DATE 33 19 14 25
SINCE SEP 1 33 19 14 25
SINCE JAN 1 746 487 259 599
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 6.2
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 55
LOWEST 8
AVERAGE 32
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 90 2021
MINIMUM TEMPERATURE (F) 47 31 2007
SUNRISE AND SUNSET
SEPTEMBER 9 2026.....SUNRISE 6:47 AM MDT SUNSET 7:34 PM MDT
SEPTEMBER 10 2026.....SUNRISE 6:48 AM MDT SUNSET 7:32 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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