Climatological Report (Daily)
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CDUS45 KRIW 180741
CLILND


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1241 AM MST MON DEC 18 2017


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

...THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 17 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         33    335 PM  62    1980  31      2       -4
  MINIMUM         16    955 PM -29    1924   9      7      -21
  AVERAGE         25                        20      5      -12

PRECIPITATION (IN)
  YESTERDAY        T             0.38 1924   0.02  -0.02     0.01
  MONTH TO DATE    0.67                      0.35   0.32     0.57
  SINCE DEC 1      0.67                      0.35   0.32     0.57
  SINCE JAN 1     15.63                     12.43   3.20    20.96

SNOWFALL (IN)
  YESTERDAY        T                         0.3   -0.3       T
  MONTH TO DATE    9.1                       6.1    3.0      5.7
  SINCE DEC 1      9.1                       6.1    3.0      5.7
  SINCE JUL 1     17.1                      31.7  -14.6     19.7
  SNOW DEPTH       4

DEGREE DAYS
 HEATING
  YESTERDAY       40                        45     -5       77
  MONTH TO DATE  621                       747   -126      817
  SINCE DEC 1    621                       747   -126      817
  SINCE JUL 1   2221                      2620   -399     2373

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1    292                       472   -180      562
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    10   HIGHEST WIND DIRECTION    SW (230)
  HIGHEST GUST SPEED    11   HIGHEST GUST DIRECTION    SW (230)
  AVERAGE WIND SPEED     3.3


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT SNOW
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    96           100 AM
 LOWEST     59           200 PM
 AVERAGE    78

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


THE LANDER WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        55      1979
                                             1954
 MINIMUM TEMPERATURE (F)    9       -36      1924


SUNRISE AND SUNSET
DECEMBER 18 2017......SUNRISE   741 AM MST   SUNSET   443 PM MST
DECEMBER 19 2017......SUNRISE   741 AM MST   SUNSET   443 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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