804
CDUS45 KRIW 140731
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT THU MAY 14 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 13 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 92R 2:21 PM 88 2013 66 26 72
MINIMUM 35 3:53 AM 22 1983 36 -1 44
AVERAGE 64 51 13
PRECIPITATION (IN)
YESTERDAY 0.00 0.99 1942 0.08 -0.08 0.00
MONTH TO DATE 0.32 0.91 -0.59 0.34
SINCE MAR 1 1.76 3.16 -1.40 3.26
SINCE JAN 1 2.30 4.21 -1.91 3.98
SNOWFALL (IN)
YESTERDAY 0.0 5.2 1967 0.1 -0.1 0.0
MONTH TO DATE T 1.8 -1.8 0.3
SINCE MAR 1 11.4 22.6 -11.2 16.0
SINCE JUL 1 27.1 70.9 -43.8 26.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 1 14 -13 7
MONTH TO DATE 179 218 -39 156
SINCE MAR 1 1385 1807 -422 1705
SINCE JUL 1 5562 7169 -1607 6720
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 39 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION W (270)
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 88 4:00 AM
LOWEST 9 2:00 PM
AVERAGE 49
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 88 2013
MINIMUM TEMPERATURE (F) 37 22 2004
SUNRISE AND SUNSET
MAY 14 2026...........SUNRISE 5:44 AM MDT SUNSET 8:21 PM MDT
MAY 15 2026...........SUNRISE 5:43 AM MDT SUNSET 8:22 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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