Climatological Report (Daily)
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651
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.




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