Climatological Report (Daily)
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756
CDUS45 KRIW 150728
CLILND

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1228 AM MST MON DEC 15 2025

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

...THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 14 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         55   1:43 PM  61    1924  33     22       44
  MINIMUM         28   3:29 AM -26    1926  10     18       19
  AVERAGE         42                        21     21

PRECIPITATION (IN)
  YESTERDAY        0.00          0.74 2014   0.02  -0.02     0.00
  MONTH TO DATE    0.18                      0.31  -0.13     0.00
  SINCE DEC 1      0.18                      0.31  -0.13     0.00
  SINCE JAN 1     13.31                     12.91   0.40     9.19

SNOWFALL (IN)
  YESTERDAY        0.0           5.2  1988   0.3   -0.3      0.0
  MONTH TO DATE    2.6                       4.5   -1.9      0.0
  SINCE DEC 1      2.6                       4.5   -1.9      0.0
  SINCE JUL 1      3.7                      27.1  -23.4     10.3
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       23                        44    -21       33
  MONTH TO DATE  413                       589   -176      444
  SINCE DEC 1    413                       589   -176      444
  SINCE JUL 1   1783                      2417   -634     1873

 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    10   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    12   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     3.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    61           9:00 PM
 LOWEST     31           1:00 PM
 AVERAGE    46

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


THE LANDER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   32        60      1980
 MINIMUM TEMPERATURE (F)   10       -22      1926


SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE   7:39 AM MST   SUNSET   4:42 PM MST
DECEMBER 16 2025......SUNRISE   7:40 AM MST   SUNSET   4:42 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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