Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 022109
CLMRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
242 PM MDT SAT APR 1 2017

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SWEETWATER COUNTY
AIRPORT NEAR ROCK SPRINGS FOR THE MONTH OF MARCH 2017...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF MARCH 2017 WILL BE
AVAILABLE APPROXIMATELY IN MAY 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...

...MARCH WAS MUCH WARMER AND WETTER THAN NORMAL IN ROCK SPRINGS...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN MARCH WAS 39.6
DEGREES...WHICH WAS 6.1 DEGREES ABOVE NORMAL. THIS MAKES IT THE 3RD
WARMEST MARCH ON RECORD. THE WARMEST READING OF THE MONTH WAS 69
DEGREES ON THE 18TH...SETTING A NEW RECORD. THIS BROKE THE PREVIOUS
RECORD OF 65 DEGREES...SET IN 2007. THE COLDEST READING WAS 11
DEGREES ON THE 3RD.

TOTAL PRECIPITATION FOR THE MONTH WAS 1.43 INCHES...WHICH WAS 210
PERCENT OF NORMAL. THIS MAKES IT THE 3RD WETTEST MARCH ON RECORD.
THE WETTEST 24 HOUR PERIOD WAS THE 28TH...WHEN 0.48 INCHES
FELL...AND SETTING A NEW RECORD. THIS TIED THE PREVIOUS RECORD SET
IN 1993. THE HIGHEST WIND GUST WAS 60 MPH ON THE 5TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF MARCH 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              72   03/31/2012
 LOW              -12   03/11/1969
HIGHEST            69   03/18
LOWEST             11   03/03
AVG. MAXIMUM     49.1              43.9     5.2
AVG. MINIMUM     30.2              23.1     7.1
MEAN             39.6              33.5     6.1
DAYS MAX >= 90      0
DAYS MAX <= 32      4
DAYS MIN <= 32     15
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.97   1977
 MINIMUM            T   2013
TOTALS           1.43              0.68    0.75
DAILY AVG.       0.05              0.02    0.03
DAYS >= .01         9
DAYS >= .10         6
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.48   03/28 TO 03/28

DEGREE_DAYS
HEATING TOTAL     780               977    -197
 SINCE 7/1       6518              6829    -311
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              12.9
RESULTANT WIND SPEED/DIRECTION   9/251
HIGHEST WIND SPEED/DIRECTION    47/200    DATE  03/05
HIGHEST GUST SPEED/DIRECTION    60/200    DATE  03/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       5
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                3     SNOW                       3
LIGHT SNOW                7     SLEET                      0
FOG                      10     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

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

LOOKING AHEAD TO APRIL 2017...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 49 DEGREES... AND THE AVERAGE LOW TEMPERATURE
IS 27 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 58
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 33 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.91 INCHES.

$$


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