Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011953
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1250 PM MST THU DEC 1 2016

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTH BIG HORN COUNTY
AIRPORT NEAR GREYBULL 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

...NOVEMBER WAS RECORD WARM AND SLIGHTLY DRY FOR GREYBULL...

THE AVERAGE TEMPERATURE FOR GREYBULL IN NOVEMBER WAS 39.7 DEGREES...
WHICH WAS 9.2 DEGREES ABOVE NORMAL. THIS TIES THE RECORD (WITH 1999)
OF THE WARMEST NOVEMBER SINCE 1998. THE WARMEST READING OF THE MONTH
WAS 66 DEGREES ON THE 4TH AND 15TH...AND THE COLDEST WAS 16 ON THE
30TH. THREE RECORD HIGHS OCCURRED LAST MONTH...65 DEGREES ON THE
3RD...BREAKING 64 SET BACK IN 2001...64 DEGREES ON THE 9TH...
BREAKING 60 SET BACK IN 2001...AND 66 DEGREES ON THE 15TH...BREAKING
62 SET BACK IN 1999.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.23...WHICH WAS 77 PERCENT OF
NORMAL. THE WETTEST 24 HOUR PERIOD WAS THE 21ST...WHEN 0.15 OF AN
INCH FELL...WHICH ALSO SET A NEW DAILY RECORD...BREAKING 0.03 SET
BACK IN 2003. THE HIGHEST WIND GUST WAS 50 MPH ON THE 28TH.

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

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              73   11/01/2014
                        11/08/1999
                        11/06/1999
 LOW              -22   11/16/2014
HIGHEST            66   11/15
                        11/04
LOWEST             16   11/30
AVG. MAXIMUM     52.7              43.1     9.6
AVG. MINIMUM     26.7              17.9     8.8
MEAN             39.7              30.5     9.2
DAYS MAX >= 90      0
DAYS MAX <= 32      1
DAYS MIN <= 32     28
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         0.80   2002
 MINIMUM         0.00   2009
TOTALS           0.23              0.30   -0.07
DAILY AVG.       0.01              0.01    0.00
DAYS >= .01         4
DAYS >= .10         1
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.15   11/21 TO 11/21

DEGREE_DAYS
HEATING TOTAL     752              1035    -283
 SINCE 7/1       1375              1857    -482
COOLING TOTAL       0                 0       0
 SINCE 1/1        887               669     218
.................................................

WIND (MPH)
AVERAGE WIND SPEED              5.5
HIGHEST WIND SPEED/DIRECTION    38/330    DATE  11/28
HIGHEST GUST SPEED/DIRECTION    50/330    DATE  11/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     SLEET                      0
FOG                       4     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

-  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 33 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 10 DEGREES.
THE AVERAGE HIGH BY THE END OF THE MONTH IS 28 DEGREES...AND THE
AVERAGE LOW TEMPERATURE IS 5 ABOVE. THE AVERAGE MONTHLY
PRECIPITATION IS 0.28 INCHES.

$$



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