Climatological Report (Monthly)
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CXUS55 KRIW 011836
CLMLND


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1135 AM MST TUE JAN 1 2019

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

...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1891 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              65   12/11/1937
                        12/10/1933
 LOW              -40   12/19/1924
HIGHEST            48   12/21
LOWEST             -5   12/29
AVG. MAXIMUM     33.2              31.8     1.4
AVG. MINIMUM     11.5               9.6     1.9
MEAN             22.3              20.7     1.6
DAYS MAX >= 90      0
DAYS MAX <= 32     15
DAYS MIN <= 32     31
DAYS MIN <= 0       2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.06   1909
 MINIMUM            T   1933
                        1931
                        1910
TOTALS           0.58              0.58    0.00
DAILY AVG.       0.02              0.02    0.00
DAYS >= .01         3
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.45   12/31 TO 12/31

SNOWFALL (INCHES)
TOTALS            6.8              10.1    -3.3
SINCE 7/1        25.3              35.7   -10.4
SNOWDEPTH AVG.      0
DAYS >= 1.0         2

DEGREE_DAYS
HEATING TOTAL    1316              1373     -57
 SINCE 7/1       3162              3246     -84
COOLING TOTAL       0                 0       0
 SINCE 1/1        514               472      42
.................................................

WIND (MPH)
AVERAGE WIND SPEED              4.4
RESULTANT WIND SPEED/DIRECTION   1/309
HIGHEST WIND SPEED/DIRECTION    44/260    DATE  12/21
HIGHEST GUST SPEED/DIRECTION    52/250    DATE  12/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              1
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
  0
  0
  0
  2
  0
  3
HAZE                      3

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

$$


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