Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011931
CLMCPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1225 PM MST THU DEC 1 2016

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE NATRONA COUNTY
INTERNATIONAL AIRPORT NEAR CASPER FOR THE MONTH OF NOVEMBER 2016...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF NOVEMBER 2016 WILL BE
AVAILABLE APPROXIMATELY IN JANUARY 2017 FROM THE NATIONAL CENTER FOR
ENVIRONMENTAL INFORMATION HTTP://WWW.NCEI.NOAA.GOV/OL/
CLIMATEDATA.HTML). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON
THE INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...CASPER HAD A RECORD WARM AND MUCH DRIER NOVEMBER...

THE AVERAGE TEMPERATURE FOR CASPER IN NOVEMBER WAS 40.8 DEGREES...
WHICH WAS 7.6 DEGREES ABOVE NORMAL. THIS MAKES IT THE 3RD WARMEST
NOVEMBER ON RECORD SINCE 1948. THE WARMEST READING OF THE MONTH WAS
70 DEGREES ON THE 15TH...AND THE COLDEST WAS 10 ABOVE ON THE 18TH.
TWO DAILY RECORD HIGHS WERE SET LAST MONTH...69 DEGREES ON THE
9TH...BREAKING 68 SET BACK IN 2007...AND 70 DEGREES ON THE 15TH...
BREAKING 69 SET BACK IN 1999.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.38 INCHES...WHICH WAS 50
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE
21ST AND 22ND...WHEN 0.24 OF AN INCH OF FELL. NO PRECIPITATION
RECORDS WERE SET DURING THE MONTH. THE HIGHEST WIND GUST WAS 46 MPH
ON THE 19TH.

...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              72   11/01/2014
                        11/07/1999
                        11/06/1999
 LOW              -27   11/12/2014
HIGHEST            70   11/15
LOWEST             10   11/18
AVG. MAXIMUM     55.0              44.7    10.3
AVG. MINIMUM     26.6              21.6     5.0
MEAN             40.8              33.2     7.6
DAYS MAX >= 90      0
DAYS MAX <= 32      1
DAYS MIN <= 32     23
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.72   1983
 MINIMUM         0.04   1949
TOTALS           0.38              0.76   -0.38
DAILY AVG.       0.01              0.03   -0.02
DAYS >= .01         4
DAYS >= .10         1
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.24   11/21 TO 11/22

SNOWFALL (INCHES)
TOTALS            3.2              10.3    -7.1
SINCE 7/1         3.2              19.5   -16.3
DAYS >= 1.0         1

DEGREE_DAYS
HEATING TOTAL     719               955    -236
 SINCE 7/1       1426              1854    -428
COOLING TOTAL       0                 0       0
 SINCE 1/1        451               422      29
.................................................

WIND (MPH)
AVERAGE WIND SPEED              13.1
RESULTANT WIND SPEED/DIRECTION   9/236
HIGHEST WIND SPEED/DIRECTION    39/230    DATE  11/19
HIGHEST GUST SPEED/DIRECTION    46/220    DATE  11/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     51

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW                8     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

LOOKING AHEAD TO DECEMBER 2016...WINTER BEGINS OFFICIALLY AT 344 AM
ON DECEMBER 21ST. THE AVERAGE HIGH TEMPERATURE ON THE FIRST OF THE
MONTH IS 37 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 16 DEGREES.
THE AVERAGE HIGH BY THE END OF THE MONTH IS 35 DEGREES...AND THE
AVERAGE LOW TEMPERATURE IS 14. THE AVERAGE MONTHLY PRECIPITATION IS
0.49 INCHES WITH 11.0 INCH OF SNOWFALL.

$$


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