Climatological Report (Monthly)
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630
CXUS55 KRIW 011944
CLMBPI

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

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE MILEY MEMORIAL FIELD
NEAR BIG PINEY FOR THE MONTH OF DECEMBER 2018...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF DECEMBER 2018 WILL BE
AVAILABLE APPROXIMATELY IN 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...DECEMBER WAS DRY AND COOLER THAN AVERAGE FOR BIG PINEY...

THE AVERAGE TEMPERATURE FOR BIG PINEY IN DECEMBER WAS 10.4 DEGREES,
WHICH WAS 2.2 DEGREES BELOW NORMAL. THE WARMEST READING FOR THE
MONTH WAS 38 DEGREES ON THE 21ST...AND THE LOWEST WAS 20 BELOW ON
THE 31ST. NO TEMPERATURE RECORDS WERE SET DURING THE MONTH.

BIG PINEY HAD A PRECIPITATION TOTAL OF 0.10 INCHES...WHICH IS 33
PERCENT OF THE NORMAL. THE WETTEST 24 HOUR PERIOD WAS ON THE 25TH
WHEN 0.05 INCHES FELL. NO PRECIPITATION RECORDS WERE SET DURING THE
MONTH. THE HIGHEST WIND GUST WAS 37 MPH ON THE 19TH.

...THE BIG PINEY  WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1976 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              57   12/12/2017
 LOW              -50   12/23/1983
HIGHEST            38   12/21
LOWEST            -20   12/31
AVG. MAXIMUM     25.9              26.5    -0.6
AVG. MINIMUM     -5.1              -1.3    -3.8
MEAN             10.4              12.6    -2.2
DAYS MAX >= 90      0
DAYS MAX <= 32     28
DAYS MIN <= 32     31
DAYS MIN <= 0      25

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.39   1983
 MINIMUM            T   2009
                        1989
TOTALS           0.10              0.30   -0.20
DAILY AVG.       0.00
DAYS >= .01         2
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.05   12/25 TO 12/25

DEGREE_DAYS
HEATING TOTAL    1687              1624      63
 SINCE 7/1       4287              4439    -152
COOLING TOTAL       0                 0       0
 SINCE 1/1         57                35      22
.................................................

WIND (MPH)
AVERAGE WIND SPEED              4.8
HIGHEST WIND SPEED/DIRECTION    30/310    DATE  12/19
HIGHEST GUST SPEED/DIRECTION    37/320    DATE  12/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP                0
HEAVY RAIN                0     RAIN                        0
LIGHT RAIN                0     FREEZING RAIN               0
LT FREEZING RAIN          0     HAIL                        0
HEAVY SNOW                0     SNOW                        2
LIGHT SNOW                9     SLEET                       0
FOG                      12     FOG W/VIS <= 1/4 MILE       2
HAZE                      7

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

LOOKING AHEAD TO JANUARY 2019...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 26 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS -4 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 26
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS -4. THE AVERAGE MONTHLY
PRECIPITATION IS 0.31 INCHES.

$$



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