Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 012042 RRA
CLMP60

CYSCLMP60 000
TTAA00 KRIW 011932


CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 PM MDT MON SEP 1 2014

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LAKE YELLOWSTONE FOR THE
MONTH OF AUGUST 2014...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF AUGUST 2014 WILL BE
AVAILABLE APPROXIMATELY IN OCTOBER 2014 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/...

...AUGUST WAS COOLER AND MUCH COOLER THAN AVERAGE AT LAKE
YELLOWSTONE...

THE AVERAGE TEMPERATURE FOR LAKE YELLOWSTONE IN AUGUST WAS 52.0
DEGREES...WHICH WAS 3.2 DEGREES BELOW NORMAL. THE WARMEST DAILY HIGH
FOR THE MONTH WAS 79 DEGREES ON THE 12TH. THE COLDEST READING FOR
THE MONTH WAS 29 DEGREES ON THE 25TH. NO TEMPERATURE RECORDS WERE
SET DURING THE MONTH.

TOTAL PRECIPITATION FOR THE MONTH WAS 4.29 INCHES...WHICH WAS 282
PERCENT OF NORMAL. THIS MAKES IT THE WETTEST AUGUST ON RECORD. THE
WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 30TH AND 31ST...WHEN
1.00 INCH OF PRECIPITATION FELL. 2 NEW RECORDS WERE SET EACH DAY.
0.86 OF AN INCH OF PRECIPITATION FELL ON THE 30TH...BREAKING THE
PREVIOUS RECORD OF 0.07 INCHES SET IN 2003. 0.26 OF AN INCH OF
PRECIPITATION FELL ON THE 31ST...BREAKING THE PREVIOUS RECORD OF
0.21 INCHES SET IN 2002.  0.62 OF AN INCH OF PRECIPITATION FELL ON
THE 5TH...BREAKING THE PREVIOUS RECORD OF 0.15 INCHES SET IN 2007.
0.02 OF AN INCH OF PRECIPITATION FELL ON THE 7TH...TYING THE
PREVIOUS RECORD OF 0.02 INCHES SET IN 2011. 0.22 OF AN INCH OF
PRECIPITATION FELL ON THE 14TH...BREAKING THE PREVIOUS RECORD OF
0.01 INCHES SET IN 2010. 0.16 OF AN INCH OF PRECIPITATION FELL ON
THE 20TH...BREAKING THE PREVIOUS RECORD OF 0.03 INCHES SET IN 2004.
THE HIGHEST WIND GUST WAS 32 MPH...WHICH OCCURRED ON THE 30TH.

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF AUGUST
2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              84   08/14/2003
                        08/12/2003
                        08/06/2001
 LOW               25   08/31/2005
HIGHEST            79   08/12
LOWEST             29   08/25
AVG. MAXIMUM     64.8
AVG. MINIMUM     39.2
MEAN             52.0              55.2    -3.2
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      2
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.53   2004
 MINIMUM         0.13   2012
TOTALS           4.29R             1.52    2.77
DAILY AVG.       0.14
DAYS >= .01        16
DAYS >= .10        13
DAYS >= .50         2
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    1.00   08/30 TO 08/31

DEGREE_DAYS
HEATING TOTAL     397               304      93
 SINCE 7/1        662               587      75
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              2.2
HIGHEST WIND SPEED/DIRECTION    18/280    DATE  08/29
HIGHEST GUST SPEED/DIRECTION    32/300    DATE  08/30

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)     73

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 SEPTEMBER 2014...THE AVERAGE HIGH TEMPERATURE ON
THE FIRST OF THE MONTH IS 66 DEGREES...AND THE AVERAGE LOW
TEMPERATURE IS 35 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH
IS 59 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 29. THE AVERAGE
MONTHLY PRECIPITATION IS 1.28 INCHES.

$$







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