988
CDUS45 KRIW 180731
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT WED MAR 18 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MARCH 17 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 70 3:31 PM 71 2007 50 20 61
2012
MINIMUM 41 12:30 AM -10 1965 23 18 29
AVERAGE 56 36 20
PRECIPITATION (IN)
YESTERDAY 0.00 0.47 1952 0.03 -0.03 0.00
MONTH TO DATE 0.16 0.41 -0.25 0.90
SINCE MAR 1 0.16 0.41 -0.25 0.90
SINCE JAN 1 0.70 1.46 -0.76 1.62
SNOWFALL (IN)
YESTERDAY 0.0 5.3 1971 0.3 -0.3 0.0
MONTH TO DATE 1.6 5.4 -3.8 5.5
SINCE MAR 1 1.6 5.4 -3.8 5.5
SINCE JUL 1 17.3 53.7 -36.4 16.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 9 28 -19 20
MONTH TO DATE 435 536 -101 507
SINCE MAR 1 435 536 -101 507
SINCE JUL 1 4612 5898 -1286 5522
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 29 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 38 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 15.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 65 1:00 AM
LOWEST 20 1:00 PM
AVERAGE 43
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 75 2017
MINIMUM TEMPERATURE (F) 24 -15 1965
SUNRISE AND SUNSET
MARCH 18 2026.........SUNRISE 7:12 AM MDT SUNSET 7:16 PM MDT
MARCH 19 2026.........SUNRISE 7:11 AM MDT SUNSET 7:17 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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