042
CDUS45 KRIW 160727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT SAT MAY 16 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 15 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 79 2:21 PM 87 1984 66 13 62
MINIMUM 40 11:46 PM 27 1983 37 3 38
AVERAGE 60 52 8
PRECIPITATION (IN)
YESTERDAY 0.00 1.52 1991 0.08 -0.08 0.05
MONTH TO DATE 0.32 1.06 -0.74 0.41
SINCE MAR 1 1.76 3.31 -1.55 3.33
SINCE JAN 1 2.30 4.36 -2.06 4.05
SNOWFALL (IN)
YESTERDAY 0.0 1.4 1976 0.1 -0.1 0.0
MONTH TO DATE T 2.0 -2.0 0.3
SINCE MAR 1 11.4 22.8 -11.4 16.0
SINCE JUL 1 27.1 71.1 -44.0 26.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 5 13 -8 15
MONTH TO DATE 187 245 -58 185
SINCE MAR 1 1393 1834 -441 1734
SINCE JUL 1 5570 7196 -1626 6749
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
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WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 58 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 12.3
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 46 11:00 PM
LOWEST 8 4:00 PM
AVERAGE 27
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 88 2012
MINIMUM TEMPERATURE (F) 37 25 2009
SUNRISE AND SUNSET
MAY 16 2026...........SUNRISE 5:42 AM MDT SUNSET 8:23 PM MDT
MAY 17 2026...........SUNRISE 5:41 AM MDT SUNSET 8:24 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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