134
CDUS45 KRIW 180736
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
136 AM MDT SUN MAY 18 2025
...............................
..THE RIVERTON WY CLIMATE SUMMARY FOR MAY 17 2025
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)
YESTERDAY
MAXIMUM 69 2:59 PM 83 2006 67 2 76
MINIMUM 40 4:59 AM 30 1999 40 0 46
AVERAGE 55 54 1 61
PRECIPITATION (IN)
YESTERDAY 0.00 1.12 0.06 -0.06 0.00
MONTH TO DATE 0.87 1.08 -0.21 1.40
SINCE MAR 1 3.75 2.93 0.82 2.30
SINCE JAN 1 4.25 3.62 0.63 3.75
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2021 0.0
MONTH TO DATE 0.9 0.7
SINCE MAR 1 18.2 4.3
SINCE JUL 1 30.7 36.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 10 12 -2 4
MONTH TO DATE 202 247 -45 257
SINCE MAR 1 1692 1806 -114 1694
SINCE JUL 1 7039 7684 -645 7278
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 3 0 3 0
SINCE MAR 1 3 0 3 0
SINCE JAN 1 3 0 3 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 7.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67 3:00 AM
LOWEST 21 3:00 PM
AVERAGE 44
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THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 87 2009
MINIMUM TEMPERATURE (F) 40 32 2017
SUNRISE AND SUNSET
MAY 18 2025...........SUNRISE 5:47 AM MDT SUNSET 8:34 PM MDT
MAY 19 2025...........SUNRISE 5:46 AM MDT SUNSET 8:35 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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