Climatological Report (Monthly)
Issued by NWS

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000
CXUS55 KRIW 102156 CCA
CLMRKS

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

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR ROCK SPRINGS 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/...

...ROCK SPRINGS WAS MUCH WARMER AND DRIER THAN NORMAL IN FEBRUARY...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN FEBRUARY WAS 31.4
DEGREES... WHICH WAS 7.4 DEGREES ABOVE NORMAL. THIS MAKES IT THE 3RD
WARMEST FEBRUARY ON RECORD....WITH THE WARMEST COMING IN 1954...WHEN
THE AVERAGE TEMPERATURE WAS 32.4 DEGREES. THE WARMEST READING FOR
THE MONTH WAS 57 DEGREES ON THE 6TH...BREAKING THE PREVIOUS RECORD
OF 52...SET IN 1963. SEVERAL OTHER RECORD HIGHS WERE SET DURING THE
MONTH: A RECORD HIGH OF 53 DEGREES OCCURRED ON THE 25TH...TYING THE
PREVIOUS RECORD LAST SET IN 1963. A NEW RECORD HIGH OF 55 DEGREES
OCCURRED ON THE 7TH...BREAKING THE PREVIOUS RECORD OF 50...SET IN
1987. A RECORD HIGH OF 50 DEGREES OCCURRED ON THE 8TH...TYING THE
PREVIOUS RECORD OF 50...SET IN 1954. A NEW RECORD HIGH OF 53 DEGREES
OCCURRED ON THE 9TH...BREAKING THE PREVIOUS RECORD OF 52...SET IN
1996. A NEW RECORD HIGH OF 55 DEGREES OCCURRED ON THE
13TH...BREAKING THE PREVIOUS RECORD OF 54...SET IN 1971. AND A NEW
RECORD HIGH OF 55 DEGREES OCCURRED ON THE 14TH...BREAKING THE
PREVIOUS RECORD OF 52...SET IN 1981. THE COLDEST READING WAS -2
DEGREES ON THE 23RD. NO RECORD LOWS WERE SET DURING THE
MONTH...HOWEVER...TWO RECORD WARMEST TEMPERATURES WERE SET. ON THE
6TH A RECORD WARMEST LOW TEMPERATURE OF 33 DEGREES BROKE THE
PREVIOUS RECORD OF 31 DEGREES...LAST SET IN 1995. AND ON THE 7TH A
RECORD WARMEST LOW TEMPERATURE OF 34 DEGREES TIED THE PREVIOUS
RECORD...LAST SET IN 1996.

TOTAL PRECIPITATION FOR THE MONTH WAS ONLY 0.08 OF AN INCH...WHICH
WAS 17 PERCENT OF NORMAL. THIS MAKES IT THE 9TH DRIEST FEBRUARY ON
RECORD. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS ON THE 3RD
THROUGH THE 4TH...WHEN 0.05 OF AN INCH OF PRECIPITATION FELL. NO
PRECIPITATION RECORDS WERE SET DURING THE MONTH. THE HIGHEST WIND
GUST WAS 52 MPH...WHICH OCCURRED ON THE 7TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              60   02/20/1977
 LOW              -29   02/07/1989
HIGHEST            57   02/06
LOWEST             -2   02/23
AVG. MAXIMUM     42.0              33.2     8.8
AVG. MINIMUM     20.8              14.8     6.0
MEAN             31.4              24.0     7.4
DAYS MAX >= 90      0
DAYS MAX <= 32      7
DAYS MIN <= 32     25
DAYS MIN <= 0       1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.45   1959
 MINIMUM            T   2013
TOTALS           0.08              0.48   -0.40
DAILY AVG.       0.00              0.02   -0.02
DAYS >= .01         4
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.05   02/03 TO 02/04

DEGREE_DAYS
HEATING TOTAL     935              1148    -213
 SINCE 7/1       5113              5852    -739
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              14.0
RESULTANT WIND SPEED/DIRECTION   7/259
HIGHEST WIND SPEED/DIRECTION    43/270    DATE  02/03
HIGHEST GUST SPEED/DIRECTION    52/270    DATE  02/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       1
LIGHT SNOW                9     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      1
HAZE                      6

-  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 38 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 19. THE AVERAGE HIGH BY THE END OF THE MONTH IS 49 DEGREES...AND
THE AVERAGE LOW TEMPERATURE IS 26. THE AVERAGE MONTHLY PRECIPITATION
IS 0.68 INCHES.


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