213
CDUS45 KRIW 180736
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
136 AM MDT SUN MAY 18 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 17 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 71 2:44 PM 87 1948 67 4 79
MINIMUM 29 5:10 AM 28 1942 38 -9 41
1986
1990
AVERAGE 50 52 -2
PRECIPITATION (IN)
YESTERDAY 0.00 2.22 2000 0.08 -0.08 0.00
MONTH TO DATE 0.41 1.21 -0.80 1.85
SINCE MAR 1 3.33 3.46 -0.13 3.64
SINCE JAN 1 4.05 4.51 -0.46 4.67
SNOWFALL (IN)
YESTERDAY 0.0 0.4 1978 0.1 -0.1 0.0
MONTH TO DATE 0.3 2.1 -1.8 3.9
SINCE MAR 1 16.0 22.9 -6.9 13.2
SINCE JUL 1 26.5 71.2 -44.7 42.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 15 13 2 5
MONTH TO DATE 215 271 -56 286
SINCE MAR 1 1764 1860 -96 1812
SINCE JUL 1 6779 7222 -443 6767
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 9.1
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 92 3:00 AM
LOWEST 22 4:00 PM
AVERAGE 57
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 88 1992
2009
MINIMUM TEMPERATURE (F) 38 25 1943
SUNRISE AND SUNSET
MAY 18 2025...........SUNRISE 5:40 AM MDT SUNSET 8:26 PM MDT
MAY 19 2025...........SUNRISE 5:39 AM MDT SUNSET 8:27 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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