Climatological Report (Daily)
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970
CDUS45 KRIW 110730
CLILND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1230 AM MST THU DEC 11 2025

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

...THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 10 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         52   2:40 PM  65    1933  33     19       37
  MINIMUM         27   7:59 AM -24    1932  11     16       11
                                      1972
  AVERAGE         40                        22     18

PRECIPITATION (IN)
  YESTERDAY        0.00          0.57 1949   0.02  -0.02     0.00
  MONTH TO DATE    0.18                      0.22  -0.04     0.00
  SINCE DEC 1      0.18                      0.22  -0.04     0.00
  SINCE JAN 1     13.31                     12.82   0.49     9.19

SNOWFALL (IN)
  YESTERDAY        0.0          11.2  1949   0.4   -0.4      0.0
  MONTH TO DATE    2.6                       3.3   -0.7      0.0
  SINCE DEC 1      2.6                       3.3   -0.7      0.0
  SINCE JUL 1      3.7                      25.9  -22.2     10.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       25                        43    -18       41
  MONTH TO DATE  327                       415    -88      309
  SINCE DEC 1    327                       415    -88      309
  SINCE JUL 1   1697                      2243   -546     1738

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    569                       485     84      644
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    SW (220)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    SW (210)
  AVERAGE WIND SPEED     4.4


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.2


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92           6:00 AM
 LOWEST     50           4:00 PM
 AVERAGE    71

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


THE LANDER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   33        65      1937
 MINIMUM TEMPERATURE (F)   11       -26      1972


SUNRISE AND SUNSET
DECEMBER 11 2025......SUNRISE   7:36 AM MST   SUNSET   4:41 PM MST
DECEMBER 12 2025......SUNRISE   7:37 AM MST   SUNSET   4:41 PM MST


-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.




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