Climatological Report (Daily)
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CDUS45 KRIW 210732
CLIBYG
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT MON SEP 21 2026
...................................
...THE BUFFALO WY CLIMATE SUMMARY FOR SEPTEMBER 20 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 55 3:31 PM 81 2007 70 -15 76
2024
MINIMUM 51 11:59 PM 34 2000 46 5 53
AVERAGE 53 58 -5 65
PRECIPITATION (IN)
YESTERDAY 0.41 0.43 1998 0.05 0.36 0.00
MONTH TO DATE 1.11 0.73 0.38 0.67
SINCE SEP 1 1.11 0.73 0.38 0.67
SINCE JAN 1 4.65 10.57 -5.92 9.02
DEGREE DAYS
HEATING
YESTERDAY 12 8 4 0
MONTH TO DATE 58 108 -50 69
SINCE SEP 1 58 108 -50 69
SINCE JUL 1 76 165 -89 110
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 54 50 4 31
SINCE SEP 1 54 50 4 31
SINCE JAN 1 676 518 158 476
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 8.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 1.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
FOG W/VISIBILITY <= 1/4 MILE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 8:00 AM
LOWEST 89 10:00 PM
AVERAGE 95
..........................................................
THE BUFFALO WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 85 2013
2015
MINIMUM TEMPERATURE (F) 45 31 2000
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 6:53 AM MDT SUNSET 7:06 PM MDT
SEPTEMBER 22 2026.....SUNRISE 6:54 AM MDT SUNSET 7:04 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$