579
CDUS45 KRIW 180740
CLIWRL
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1240 AM MST THU DEC 18 2025
...............................
..THE WORLAND WY CLIMATE SUMMARY FOR DECEMBER 17 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1947 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 62R 2:00 PM 56 1962 31 31 41
MINIMUM 28 2:37 AM -40 1964 4 24 13
AVERAGE 45 17 28
PRECIPITATION (IN)
YESTERDAY 0.00 0.09 1970 0.00 0.00 0.00
MONTH TO DATE 0.00 0.10 -0.10 T
SINCE DEC 1 0.00 0.10 -0.10 T
SINCE JAN 1 6.82 7.65 -0.83 4.35
DEGREE DAYS
HEATING
YESTERDAY 20 48 -28 38
MONTH TO DATE 553 773 -220 609
SINCE DEC 1 553 773 -220 609
SINCE JUL 1 1986 2680 -694 2165
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 561 528 33 544
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 51 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 68 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 17.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 69 6:00 AM
LOWEST 17 9:00 PM
AVERAGE 43
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THE WORLAND WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 55 1966
MINIMUM TEMPERATURE (F) 4 -27 1964
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 7:42 AM MST SUNSET 4:36 PM MST
DECEMBER 19 2025......SUNRISE 7:42 AM MST SUNSET 4:36 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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