Climatological Report (Monthly)
Issued by NWS Sterling, VA

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CXUS51 KLWX 032322
CLMDCA

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
721 PM EDT THU SEP 3 2015

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

...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015

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   08/17        96       0
                        08/04
LOWEST             63   08/27        59       4
AVG. MAXIMUM     88.0              86.5     1.5     85.6
AVG. MINIMUM     70.5              69.7     0.8     69.7
MEAN             79.3              78.1     1.2
DAYS MAX >= 90     12               8.4     3.6
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           1.16              2.93   -1.77     3.39
DAILY AVG.       0.04              0.09   -0.05
DAYS >= .01         6               8.2    -2.2
DAYS >= .10         4               5.2    -1.2
DAYS >= .50         0               2.1    -2.1
DAYS >= 1.00        0               0.7    -0.7
GREATEST
 24 HR. TOTAL    0.45   08/10 TO 08/11

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
 SINCE 7/1          0                 0       0        0
COOLING TOTAL     449               406      43      399
 SINCE 1/1       1674              1311     363     1393
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              7.6
HIGHEST WIND SPEED/DIRECTION    29/260    DATE  08/24
HIGHEST GUST SPEED/DIRECTION    38/270    DATE  08/24

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             16
NUMBER OF DAYS CLOUDY         11

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       1
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       4     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

&&

WASHINGTON DC...REAGAN NATIONAL AIRPORT...

THE MONTHLY AVERAGE TEMPERATURE WAS SLIGHTLY ABOVE NORMAL. MONTHLY
PRECIPITATION WAS BELOW NORMAL.

TWELVE DAYS LAST MONTH REACHED OR EXCEEDED 90 DEGREES...THE HIGHEST
NUMBER OF DAYS IN AUGUST SINCE 2012.

LAST MONTH MARKED THE DRIEST AUGUST SINCE 2006.

$$

DFH/RCM


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