Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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CDUS45 KRIW 130732
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT SUN SEP 13 2026
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR SEPTEMBER 12 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 4:27 PM 88 2017 76 0 75
2018
MINIMUM 43 6:06 AM 28 2014 46 -3 52
AVERAGE 60 61 -1 64
PRECIPITATION (IN)
YESTERDAY 0.00 0.99 0.02 -0.02 T
MONTH TO DATE T 0.22 -0.22 T
SINCE SEP 1 T 0.22 -0.22 T
SINCE JAN 1 2.97 6.58 -3.61 6.25
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 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 5 5 0 1
MONTH TO DATE 8 46 -38 13
SINCE SEP 1 8 46 -38 13
SINCE JUL 1 10 82 -72 16
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 42 22 20 36
SINCE SEP 1 42 22 20 36
SINCE JAN 1 755 490 265 610
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 7.5
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 76 6:00 AM
LOWEST 28 4:00 PM
AVERAGE 52
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 90 2015
MINIMUM TEMPERATURE (F) 46 31 2014
SUNRISE AND SUNSET
SEPTEMBER 13 2026.....SUNRISE 6:51 AM MDT SUNSET 7:27 PM MDT
SEPTEMBER 14 2026.....SUNRISE 6:52 AM MDT SUNSET 7:25 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$