834
CDUS45 KRIW 200730
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT WED MAY 20 2026
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR MAY 19 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 56 6:01 PM 89 2009 68 -12 56
MINIMUM 29R 5:07 AM 31 2003 41 -12 40
2019
AVERAGE 43 54 -11 48
PRECIPITATION (IN)
YESTERDAY 0.00 1.91 0.07 -0.07 0.09
MONTH TO DATE 0.28 1.22 -0.94 1.06
SINCE MAR 1 0.85 3.07 -2.22 3.94
SINCE JAN 1 1.12 3.76 -2.64 4.44
SNOWFALL (IN)
YESTERDAY 0.0 7.5 2011 0.0
MONTH TO DATE 0.8 0.9
SINCE MAR 1 8.4 18.2
SINCE JUL 1 16.4 30.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 22 11 11 17
MONTH TO DATE 229 269 -40 231
SINCE MAR 1 1354 1828 -474 1721
SINCE JUL 1 5647 7706 -2059 7068
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 8 0 8 3
SINCE MAR 1 8 0 8 3
SINCE JAN 1 8 0 8 3
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION S (200)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 7.3
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 92 5:00 AM
LOWEST 15 5:00 PM
AVERAGE 54
......................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 87 2006
MINIMUM TEMPERATURE (F) 41 26 2003
SUNRISE AND SUNSET
MAY 20 2026...........SUNRISE 5:46 AM MDT SUNSET 8:36 PM MDT
MAY 21 2026...........SUNRISE 5:45 AM MDT SUNSET 8:37 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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