582
CDUS45 KRIW 180740
CLIBYG
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1240 AM MST THU DEC 18 2025
...............................
..THE BUFFALO WY CLIMATE SUMMARY FOR DECEMBER 17 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 58 11:00 AM 65 1998 36 22 37
MINIMUM 33 11:59 PM -20 2016 17 16 17
AVERAGE 46 26 20 27
PRECIPITATION (IN)
YESTERDAY 0.02 0.18 2000 0.01 0.01 0.00
MONTH TO DATE 0.13 0.10 0.03 T
SINCE DEC 1 0.13 0.10 0.03 T
SINCE JAN 1 11.51 12.48 -0.97 8.60
DEGREE DAYS
HEATING
YESTERDAY 19 39 -20 38
MONTH TO DATE 508 642 -134 521
SINCE DEC 1 508 642 -134 521
SINCE JUL 1 1898 2398 -500 1918
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 494 528 -34 663
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 55 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 80 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 19.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
LIGHT SNOW
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79 4:00 PM
LOWEST 20 10:00 PM
AVERAGE 50
......................................................
THE BUFFALO WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 57 2024
MINIMUM TEMPERATURE (F) 16 -8 2005
SUNRISE AND SUNSET
DECEMBER 18 2025......SUNRISE 7:38 AM MST SUNSET 4:29 PM MST
DECEMBER 19 2025......SUNRISE 7:39 AM MST SUNSET 4:30 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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