Climatological Report (Monthly)
Issued by NWS Sterling, VA

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000
CXUS51 KLWX 041852
CLMDCA

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
248 PM EDT THU SEP 4 2014

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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             106   08/06/1918
 LOW               49   08/29/1986
                        08/31/1934
                        08/24/1890
HIGHEST            96   08/31        96       0
LOWEST             62   08/15        59       3
AVG. MAXIMUM     85.6              86.5    -0.9     84.7
AVG. MINIMUM     69.7              69.7     0.0     69.4
MEAN             77.7              78.1    -0.4
DAYS MAX >= 90      3               8.4    -5.4
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               0.0     0.0
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        14.41   1928
 MINIMUM         0.55   1962
TOTALS           3.39              2.93    0.46     1.34
DAILY AVG.       0.11              0.09    0.02
DAYS >= .01        11               8.2     2.8
DAYS >= .10         7               5.2     1.8
DAYS >= .50         1               2.1    -1.1
DAYS >= 1.00        1               0.7     0.3
GREATEST
 24 HR. TOTAL    1.63   08/11 TO 08/12

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
 SINCE 7/1          0                 0       0        0
COOLING TOTAL     399               406      -7      383
 SINCE 1/1       1393              1311      82     1430
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
HIGHEST WIND SPEED/DIRECTION    28/010    DATE  08/05
HIGHEST GUST SPEED/DIRECTION    32/160    DATE  08/12

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       3
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       1     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

&&

THE MONTHLY AVERAGE TEMPERATURE IN WASHINGTON THIS AUGUST WAS
SLIGHTLY BELOW NORMAL. RAINFALL FOR THE MONTH WAS SLIGHTLY
ABOVE NORMAL.

DAILY RAINFALL OF 1.60 INCHES ON THE 12TH MARKED THE WETTEST AUGUST
DAY SINCE 2011 WHEN 3.33 INCHES FELL ON THE 27TH. THIS WAS ALSO THE
WETTEST AUGUST OVERALL SINCE THAT YEAR.

THERE WERE ONLY 3 DAYS THIS MONTH WHERE THE MAXIMUM TEMPERATURE
REACHED OR EXCEEDED 90 DEGREES. THIS IS THE FEWEST NUMBER OF 90
DEGREE OR HOTTER DAYS IN THE MONTH OF AUGUST IN TEN YEARS...SINCE
2004 WHEN THERE WAS ONLY ONE.

$$

DFH/KLW/CS








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