Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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CDUS45 KRIW 010732
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT THU OCT 01 2026
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 30 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 75 3:30 PM 83 2023 66 9 76
MINIMUM 46 6:27 AM 30 2021 39 7 50
AVERAGE 61 52 9 63
PRECIPITATION (IN)
YESTERDAY 0.00 0.35 0.03 -0.03 T
MONTH TO DATE 1.55 0.77 0.78 0.99
SINCE SEP 1 1.55 0.77 0.78 0.99
SINCE JAN 1 4.52 7.13 -2.61 7.24
SNOWFALL (IN)
YESTERDAY 0.0 1.2 2009 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 4 13 -9 2
MONTH TO DATE 85 205 -120 97
SINCE SEP 1 85 205 -120 97
SINCE JUL 1 87 241 -154 100
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 44 31 13 37
SINCE SEP 1 44 31 13 37
SINCE JAN 1 757 499 258 611
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 6.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71 4:00 AM
LOWEST 24 3:00 PM
AVERAGE 48
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 84 2005
MINIMUM TEMPERATURE (F) 38 30 2002
SUNRISE AND SUNSET
OCTOBER 1 2026.......SUNRISE 7:11 AM MDT SUNSET 6:55 PM MDT
OCTOBER 2 2026.......SUNRISE 7:12 AM MDT SUNSET 6:53 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$