Climatological Report (Monthly)
Issued by NWS

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000
CXUS55 KRIW 102154 CCA
CLMGEY

CLIMATE REPORT...CORRECTION TO HEADER
NATIONAL WEATHER SERVICE RIVERTON WY
353 PM MDT TUE MAR 10 2015

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTH BIG HORN COUNTY
AIRPORT NEAR GREYBULL FOR THE MONTH OF FEBRUARY 2015...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF FEBRUARY 2015 WILL BE
AVAILABLE APPROXIMATELY IN APRIL 2015 FROM THE NATIONAL CLIMATIC
DATA CENTER (HTTP://WWW.NCDC.NOAA.GOV/OL/CLIMATEDATA.HTML).
UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE INTERNET AT
HTTP://WWW.CRH.NOAA.GOV/RIW/CLIMATE/...

...FEBRUARY WAS MUCH WARMER AND DRIER THAN AVERAGE FOR GREYBULL...

THE AVERAGE TEMPERATURE FOR GREYBULL IN FEBRUARY WAS 32.7
DEGREES...WHICH WAS 9.1 DEGREES ABOVE NORMAL. THIS WAS THE SECOND
WARMEST FEBRUARY ON RECORD. THE WARMEST FEBRUARY WAS IN 1999...WHEN
THE AVERAGE TEMPERATURE WAS 33.7 DEGREES. THE WARMEST READING FOR
THE MONTH WAS 59 DEGREES ON THE 13TH...WHICH BROKE THE PREVIOUS
RECORD FOR THIS DATE OF 52 DEGREES...LAST SET IN 2006. THERE WERE
SEVERAL OTHER RECORD HIGH TEMPERATURES SET DURING THE MONTH. ON THE
6TH...A RECORD HIGH OF 56 DEGREES BROKE THE PREVIOUS RECORD OF 46
DEGREES...LAST SET IN 1999. ON THE 7TH...A RECORD HIGH OF 58 DEGREES
TIED THE PREVIOUS RECORD...LAST SET IN 1999. ON THE 8TH...A RECORD
HIGH OF 57 DEGREES BROKE THE PREVIOUS RECORD OF 54 DEGREES...LAST
SET IN 2006. ON THE 10TH...A RECORD HIGH OF 52 DEGREES BROKE THE
PREVIOUS RECORD OF 51 DEGREES...LAST SET IN 1999. ON THE 11TH...A
RECORD HIGH OF 51 DEGREES BROKE THE PREVIOUS RECORD OF 48
DEGREES...LAST SET IN 2005. ON THE 12TH...A RECORD HIGH OF 56
DEGREES BROKE THE PREVIOUS RECORD OF 48 DEGREES...LAST SET IN 2006.
ON THE 14TH...A RECORD HIGH OF 53 DEGREES BROKE THE PREVIOUS RECORD
OF 48 DEGREES...LAST SET IN 1999. AND ON THE 19TH...A RECORD HIGH OF
56 DEGREES BROKE THE PREVIOUS RECORD OF 50 DEGREES...LAST SET IN
2004. THE COLDEST READING WAS 5 DEGREES ON THE 23RD. NO RECORD LOWS
WERE SET DURING THE MONTH...HOWEVER...ONE RECORD WARMEST LOW
TEMPERATURE WAS SET. ON THE 8TH...A RECORD WARMEST LOW TEMPERATURE
OF 33 DEGREES BROKE THE PREVIOUS RECORD OF 26...LAST SET IN 1999.

THE TOTAL PRECIPITATION FOR THE MONTH WAS 0.04 INCHES...WHICH WAS 22
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD WAS ON THE 25TH...WHEN
0.02 OF AN INCH OF PRECIPITATION FELL. THIS TIED THE RECORD LAST SET
IN 2000. THE HIGHEST WIND GUST WAS 50 MPH...WHICH OCCURRED ON THE
25TH.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              69   02/28/2006
 LOW              -31   02/02/2011
HIGHEST            59   02/13
LOWEST              5   02/23
AVG. MAXIMUM     42.8              35.9     6.9
AVG. MINIMUM     22.6              11.4    11.2
MEAN             32.7              23.6     9.1
DAYS MAX >= 90      0
DAYS MAX <= 32      7
DAYS MIN <= 32     26
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         0.37   2007
 MINIMUM         0.00   2008
TOTALS           0.04              0.18   -0.14
DAILY AVG.       0.00              0.01   -0.01
DAYS >= .01         3
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.02   02/25 TO 02/25
                        02/24 TO 02/25
                        02/25 TO 02/25

DEGREE_DAYS
HEATING TOTAL     898              1157    -259
 SINCE 7/1       5644              5971    -327
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
HIGHEST WIND SPEED/DIRECTION    39/340    DATE  02/21
HIGHEST GUST SPEED/DIRECTION    50/330    DATE  02/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           13
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          3

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                5     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 MARCH 2015...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 44 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 18 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 56
DEGREES...AND THE AVERAGE LOW IS 28. THE AVERAGE MONTHLY
PRECIPITATION IS 0.40 INCHES.


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