Climatological Report (Monthly)
Issued by NWS Sterling, VA

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000
CXUS51 KLWX 011858
CLMIAD

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
155 PM EST MON DEC 1 2014

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

...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 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              84   11/01/1982
                        11/02/1971
 LOW                9   11/24/1989
HIGHEST            70   11/24        75      -5
                        11/11
                        11/04
LOWEST             13   11/19        19      -6
AVG. MAXIMUM     51.8              57.5    -5.7     52.9
AVG. MINIMUM     31.9              35.3    -3.4     32.9
MEAN             41.8              46.4    -4.6
DAYS MAX >= 90      0               0.0     0.0
DAYS MAX <= 32      0               0.1    -0.1
DAYS MIN <= 32     16              12.4     3.6
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.83   1963
 MINIMUM         0.24   1981
TOTALS           2.66              3.41   -0.75     2.79
DAILY AVG.       0.09              0.11   -0.02
DAYS >= .01         7               9.1    -2.1
DAYS >= .10         5               5.5    -0.5
DAYS >= .50         2               2.4    -0.4
DAYS >= 1.00        1               0.9     0.1
GREATEST
 24 HR. TOTAL    1.20   11/26 TO 11/26

SNOWFALL (INCHES)
RECORDS
 TOTAL           11.4   1967
TOTALS            1.6               0.5     1.1
SINCE 7/1         1.6               0.5     1.1
SNOWDEPTH AVG.      0
DAYS >= TRACE       6               0.3     5.7
DAYS >= 1.0         1               0.1     0.9
GREATEST
 SNOW DEPTH         1   11/27
 24 HR TOTAL      1.6

DEGREE_DAYS
HEATING TOTAL     689               560     129      655
 SINCE 7/1        994               916      78      964
COOLING TOTAL       0                 2      -2        1
 SINCE 1/1        968              1178    -210     1272
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.9
HIGHEST WIND SPEED/DIRECTION    31/320    DATE  11/18
HIGHEST GUST SPEED/DIRECTION    41/290    DATE  11/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            8
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY         11

AVERAGE RH (PERCENT)     64

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       6
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       1
LIGHT SNOW                4     SLEET                      0
FOG                      10     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.

&&

DULLES INTERNATIONAL AIRPORT...

THE MONTHLY AVERAGE TEMPERATURE AT DULLES INTERNATIONAL AIRPORT THIS
NOVEMBER 2014 WAS WELL BELOW NORMAL. PRECIPITATION WAS BELOW NORMAL.

THE AVERAGE MONTHLY TEMPERATURE RANKS AS THE 5TH COLDEST NOVEMBER ON
RECORD. THERE WERE 14 DAYS WITH HIGH TEMPERATURES BELOW 50 DEGF...
INCLUDING 7 CONSECUTIVE DAYS FROM THE 13TH THROUGH THE 19TH. THIS IS
THE MOST NUMBER OF TOTAL DAYS BELOW 50F SINCE NOVEMBER OF 1996 WHEN
THERE WERE 16 DAYS...AND THE THIRD LONGEST NOVEMBER STRETCH OF
CONSECUTIVE DAYS WITH TEMPERATURES BELOW 50F.

A RECORD DAILY LOW MAXIMUM TEMPERATURE OF 36 WAS SET ON THE
18TH...BREAKING THE OLD RECORD OF 39 SET IN 2008. A SECOND RECORD
DAILY LOW MAXIMUM TEMPERATURE WAS SET ON THE 19TH WHEN THE HIGH OF
34 DEGREES BROKE THE OLD RECORD OF 38 SET IN 2008.

TWO DAILY LOW TEMPERATURE RECORDS WERE SET ON THE SAME NIGHT. A
RECORD DAILY LOW TEMPERATURE OF 18 DEGREES WAS SET ON THE EVENING OF
THE 18TH...BREAKING THE OLD RECORD OF 20 SET IN 1991. AFTER MIDNIGHT
THAT NIGHT...A LOW TEMPERATURE OF 13 DEGREES AT DULLES BROKE THE
DAILY LOW TEMPERATURE RECORD FOR THE 19TH OF 20 SET IN 1990.

A THIRD RECORD DAILY LOW TEMPERATURE WAS TIED ON THE 20TH. THE LOW
TEMPERATURE OF 14 DEGREES TIED THE OLD RECORD OF 14 SET IN 1964.

A RECORD DAILY MAXIMUM SNOWFALL OF 1.6 INCHES ON THE 26TH BROKE THE
OLD RECORD OF 1.1 INCHES SET IN 1978. THIS IS ALSO THE 8TH HIGHEST
DAILY SNOWFALL ON RECORD FOR THE MONTH OF NOVEMBER.

$$

DH/SMZ










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