Climatological Report (Daily)
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771
CDUS45 KRIW 140045
CLILND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU AUG 13 2026

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

...THE LANDER WY CLIMATE SUMMARY FOR AUGUST 13 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         73   1:31 PM  97    2007  87    -14       95
  MINIMUM         61   2:22 PM  41    2002  55      6       59
  AVERAGE         67                        71     -4       77

PRECIPITATION (IN)
  TODAY            0.10          0.98 1930   0.02   0.08      T
  MONTH TO DATE    0.11                      0.25  -0.14      T
  SINCE JUN 1      1.19                      1.92  -0.73     0.98
  SINCE JAN 1      5.88                      9.17  -3.29     9.54

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

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    2                         0      2        2
  SINCE JUN 1     77                       138    -61       92
  SINCE JUL 1      2                        14    -12        4

 COOLING
  TODAY            2                         6     -4       12
  MONTH TO DATE  124                        93     31       84
  SINCE JUN 1    535                       366    169      408
  SINCE JAN 1    549                       371    178      416
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    24   HIGHEST WIND DIRECTION     W (280)
  HIGHEST GUST SPEED    32   HIGHEST GUST DIRECTION     W (270)
  AVERAGE WIND SPEED     4.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
  THUNDERSTORM
  HEAVY RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    86
 LOWEST     44
 AVERAGE    65

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


THE LANDER WY CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   87        98      2003
 MINIMUM TEMPERATURE (F)   55        41      1938


SUNRISE AND SUNSET
AUGUST 13 2026........SUNRISE   6:19 AM MDT   SUNSET   8:20 PM MDT
AUGUST 14 2026........SUNRISE   6:20 AM MDT   SUNSET   8:18 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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