Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 020859 AAA
CLMP60

CLIMATE REPORT...UPDATED
NATIONAL WEATHER SERVICE RIVERTON WY
255 AM MDT THU APR 2 2015

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LAKE YELLOWSTONE FOR THE
MONTH OF MARCH 2015...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF MARCH 2015 WILL BE
AVAILABLE APPROXIMATELY IN MAY 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/...

...MARCH WAS WARMER AND DRIER THAN AVERAGE AT LAKE YELLOWSTONE...

THE AVERAGE TEMPERATURE FOR LAKE YELLOWSTONE IN MARCH WAS 26.9
DEGREES...WHICH WAS 3.9 DEGREES ABOVE NORMAL. THIS MAKES IT THE
WARMEST MARCH ON RECORD...SINCE 1998. THE WARMEST READING FOR THE
MONTH WAS 55 DEGREES ON THE 31ST...AND THE COLDEST READING WAS 23
BELOW ON THE 4TH. THERE WERE NINE DAILY HIGH RECORDS BROKEN DURING
THE MONTH...WHICH INCLUDES 48 DEGREES ON THE 10TH...46 ON THE
11TH...44 DEGREES ON THE 12TH...50 ON THE 15TH...54 DEGREES ON THE
27TH...51 ON THE 28TH...47 DEGREES ON THE 29TH...52 ON THE 30TH...
AND 55 DEGREES ON THE 31ST. THERE WAS ONE DAILY RECORD LOW THAT WAS
SET DURING THE MONTH...23 BELOW ON THE 4TH.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.75 INCHES...WHICH WAS 62
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE
24TH...WHEN 0.27 OF AN INCH OF PRECIPITATION FELL. THE HIGHEST WIND
GUST WAS 38 MPH...WHICH OCCURRED ON THE 28TH.

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF MARCH 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              55   03/31/2015
                        03/31/2004
                        05/28/2003
 LOW              -29   03/02/2002
HIGHEST            55R  03/31
LOWEST            -23   03/04
AVG. MAXIMUM     42.3
AVG. MINIMUM     11.4
MEAN             26.9              23.0     3.9
DAYS MAX >= 90      0
DAYS MAX <= 32      4
DAYS MIN <= 32     31
DAYS MIN <= 0       5

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.58   2014
 MINIMUM         0.68   1999
TOTALS           0.75              1.21   -0.46
DAILY AVG.       0.02
DAYS >= .01        10
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.27   03/24 TO 03/24

DEGREE_DAYS
HEATING TOTAL    1174              1302    -128
 SINCE 7/1       8738              9239    -501
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              2.6
HIGHEST WIND SPEED/DIRECTION    22/280    DATE  03/28
HIGHEST GUST SPEED/DIRECTION    38/280    DATE  03/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.00
NUMBER OF DAYS FAIR           31
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     60

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

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

LOOKING AHEAD TO APRIL 2015...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 41 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 14 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 47
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 24. THE AVERAGE MONTHLY
PRECIPITATION IS 2.08 INCHES.

$$





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