Climatological Report (Monthly)
Issued by NWS Sterling, VA

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000
CXUS51 KLWX 102039
CLMIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
339 PM EDT MON NOV 10 2014

...................................

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1962 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              94   10/09/2007
 LOW               15   10/24/1969
HIGHEST            82   10/28        83      -1
LOWEST             33   10/27        27       6
                        10/05
AVG. MAXIMUM     67.4              68.2    -0.8     68.9
AVG. MINIMUM     46.5              43.8     2.7     48.0
MEAN             57.0              56.0     1.0
DAYS MAX >= 90      0               0.1    -0.1
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               2.9    -2.9
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.22   2005
 MINIMUM            T   1963
TOTALS           3.01              3.25   -0.24     7.51
DAILY AVG.       0.10              0.10    0.00
DAYS >= .01        13               7.6     5.4
DAYS >= .10         6               5.1     0.9
DAYS >= .50         1               2.3    -1.3
DAYS >= 1.00        1               0.8     0.2
GREATEST
 24 HR. TOTAL    1.32   10/14 TO 10/15

SNOWFALL (INCHES)
RECORDS
 TOTAL            1.3   1979
TOTALS            0.0               0.0     0.0
SINCE 7/1         0.0               0.0     0.0
SNOWDEPTH AVG.      0
DAYS >= TRACE       0               0.0     0.0
DAYS >= 1.0         0               0.0     0.0
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL      0.0

DEGREE_DAYS
HEATING TOTAL     252               298     -46      242
 SINCE 7/1        300               356     -56      309
COOLING TOTAL       9                19     -10       47
 SINCE 1/1        968              1176    -208     1271
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    29/320    DATE  10/23
HIGHEST GUST SPEED/DIRECTION    36/290    DATE  10/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY         13

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       9
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      4
HAZE                      1

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

&&

DULLES INTERNATIONAL AIRPORT...

THE MONTHLY AVERAGE TEMPERATURE AT DULLES INTERNATIONAL AIRPORT THIS
OCTOBER 2014 WAS NEAR NORMAL. PRECIPITATION WAS SLIGHTLY BELOW
NORMAL.

RAINFALL AS A RESULT OF A COASTAL LOW PRESSURE SYSTEM BROKE A RECORD
DAILY MAXIMUM RAINFALL OF 1.30 INCHES ON THE 15TH...EXCEEDING THE
OLD RECORD OF 0.93 INCHES SET IN 1970.

THERE WAS ONLY 1 DAY LAST MONTH WHERE THE TEMPERATURE OR EXCEEDED 80
DEGREES...WHICH IS THE FEWEST 80 DEGREES DAYS IN THE MONTH OF
OCTOBER SINCE 2009.

$$










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