Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 200734
CLIBYG
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
134 AM MDT SUN SEP 20 2026
...................................
...THE BUFFALO WY CLIMATE SUMMARY FOR SEPTEMBER 19 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 63 MM 94 2010 71 -8 72
MINIMUM 50 MM 37 2017 46 4 45
AVERAGE 57 58 -1 59
PRECIPITATION (IN)
YESTERDAY 0.12 0.35 2000 0.05 0.07 0.00
MONTH TO DATE 0.70 0.68 0.02 0.67
SINCE SEP 1 0.70 0.68 0.02 0.67
SINCE JAN 1 4.24 10.52 -6.28 9.02
DEGREE DAYS
HEATING
YESTERDAY 8 8 0 6
MONTH TO DATE 46 100 -54 69
SINCE SEP 1 46 100 -54 69
SINCE JUL 1 64 157 -93 110
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 54 49 5 31
SINCE SEP 1 54 49 5 31
SINCE JAN 1 676 517 159 476
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 12.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1:00 PM
LOWEST 75 11:00 AM
AVERAGE 86
..........................................................
THE BUFFALO WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 81 2007
2024
MINIMUM TEMPERATURE (F) 46 34 2000
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 6:52 AM MDT SUNSET 7:08 PM MDT
SEPTEMBER 21 2026.....SUNRISE 6:53 AM MDT SUNSET 7:06 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$