Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 022013
CLMCPR

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

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE NATRONA COUNTY
INTERNATIONAL AIRPORT NEAR CASPER 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

...CASPER WAS WARMER AND WETTER THAN NORMAL IN MARCH...

THE AVERAGE TEMPERATURE FOR CASPER IN MARCH WAS 41.8 DEGREES...WHICH
WAS 6.6 DEGREES ABOVE NORMAL...MAKING IT THE 3RD WARMEST MARCH ON
RECORD. THE WARMEST READING OF THE MONTH WAS 75 DEGREES ON THE
18TH...SETTING A NEW RECORD HIGH. THIS BROKE THE PREVIOUS RECORD OF
71 DEGREES...SET IN 2007. THE COLDEST READING OF THE MONTH WAS 8
DEGREES ON THE 1ST.

TOTAL PRECIPITATION FOR THE MONTH WAS 1.79 INCHES...WHICH WAS 218
PERCENT OF NORMAL...AND MAKING IT THE 5TH WETTEST MARCH ON RECORD.
THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 31ST...WHEN 1.08
INCHES OF PRECIPITATION FELL. THIS ALSO SET A NEW RECORD...BREAKING
THE PREVIOUS RECORD OF 0.28...SET IN 1960. TOTAL SNOWFALL FOR THE
MONTH WAS 7.3 INCHES...WHICH WAS 67 PERCENT OF NORMAL. NO SNOWFALL
RECORDS WERE SET DURING THE MONTH. THE HIGHEST WIND GUST WAS 65 MPH
ON THE 5TH.

...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF MARCH 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              77   03/31/2012
 LOW              -21   03/25/1965
HIGHEST            75   03/18
LOWEST              8   03/01
AVG. MAXIMUM     53.7              47.9     5.8
AVG. MINIMUM     29.8              22.4     7.4
MEAN             41.8              35.2     6.6
DAYS MAX >= 90      0
DAYS MAX <= 32      1
DAYS MIN <= 32     17
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.43   1954
 MINIMUM         0.12   2004
TOTALS           1.79              0.82    0.97
DAILY AVG.       0.06              0.03    0.03
DAYS >= .01        12
DAYS >= .10         4
DAYS >= .50         1
DAYS >= 1.00        1
GREATEST
 24 HR. TOTAL    1.08   03/31 TO 03/31

SNOWFALL (INCHES)
TOTALS            7.3              10.9    -3.6
SINCE 7/1        60.8              60.3     0.5
DAYS >= 1.0         2

DEGREE_DAYS
HEATING TOTAL     712               925    -213
 SINCE 7/1       5902              6373    -471
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              14.4
RESULTANT WIND SPEED/DIRECTION   9/237
HIGHEST WIND SPEED/DIRECTION    51/210    DATE  03/05
HIGHEST GUST SPEED/DIRECTION    65/210    DATE  03/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW                5     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      3
HAZE                      2

-  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 53 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 26 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 62
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 32. THE AVERAGE MONTHLY
PRECIPITATION IS 1.29 INCHES.

$$



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