Climatological Report (Daily)
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598
CDUS45 KRIW 110045
CLILND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU SEP 10 2026

...................................

...THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 10 2026...
VALID TODAY AS OF 0600 PM LOCAL TIME.

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2026


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 TODAY
  MAXIMUM         87   3:27 PM  93    2021  78      9       89
  MINIMUM         45   4:37 AM  30    2020  47     -2       48
  AVERAGE         66                        62      4       69

PRECIPITATION (IN)
  TODAY            0.00          1.07 1950   0.02  -0.02      T
  MONTH TO DATE    T                         0.21  -0.21     0.02
  SINCE SEP 1      T                         0.21  -0.21     0.02
  SINCE JAN 1      6.36                      9.65  -3.29    10.03

SNOWFALL (IN)
  TODAY           MM                         0.0   MM        0.0
  MONTH TO DATE    0.0                       0.1   -0.1      0.0
  SINCE SEP 1      0.0                       0.1   -0.1      0.0
  SINCE JUL 1      0.0                       0.1   -0.1      0.0
  SNOW DEPTH      MM

DEGREE DAYS
 HEATING
  TODAY            0                         4     -4        0
  MONTH TO DATE    2                        33    -31       11
  SINCE SEP 1      2                        33    -31       11
  SINCE JUL 1      5                        72    -67       16

 COOLING
  TODAY            1                         2     -1        4
  MONTH TO DATE   35                        22     13       33
  SINCE SEP 1     35                        22     13       33
  SINCE JAN 1    705                       474    231      560
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    18   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    NW (300)
  AVERAGE WIND SPEED     4.9


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    27
 LOWEST      9
 AVERAGE    18

..........................................................


THE LANDER WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   77        88      1919
                                             1990
 MINIMUM TEMPERATURE (F)   46        26      1898


SUNRISE AND SUNSET
SEPTEMBER 10 2026.....SUNRISE   6:49 AM MDT   SUNSET   7:33 PM MDT
SEPTEMBER 11 2026.....SUNRISE   6:50 AM MDT   SUNSET   7:32 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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