Climatological Report (Monthly) Issued by NWS Sterling, VA
000
CXUS51 KLWX 041906
CLMIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
306 PM EDT MON SEP 04 2023
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 104 08/20/1983
LOW 38 08/29/1982
HIGHEST 97 08/25 95 2 97
LOWEST 54 08/19 50 4 57
AVG. MAXIMUM 88.1 86.3 1.8 88.4
AVG. MINIMUM 66.4 65.2 1.2 66.7
MEAN 77.2 75.7 1.5 77.5
DAYS MAX >= 90 12 9.3 2.7 15
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.71 1984
MINIMUM 0.44 1998
TOTALS 1.85 3.53 -1.68 2.30
DAILY AVG. 0.06 0.11 -0.05 0.07
DAYS >= .01 8 9.3 -1.3 12
DAYS >= .10 4 5.6 -1.6 4
DAYS >= .50 1 2.2 -1.2 2
DAYS >= 1.00 0 1.1 -1.1 0
GREATEST
24 HR. TOTAL 0.93 08/07 TO 08/07 0.99
STORM TOTAL 0.93 0.96
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 0.0 0.0 0.0 MM
DAYS >= TRACE 0 0.0 0.0 0
DAYS >= 1.0 0 0.0 0.0 0
GREATEST
SNOW DEPTH 0 0
DEGREE DAYS
HEATING TOTAL 0 1 -1 0
SINCE 7/1 0 0 0 MM
COOLING TOTAL 386 334 52 396
SINCE 1/1 1115 1056 59 MM
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WIND (MPH)
AVERAGE WIND SPEED 6.4
HIGHEST WIND SPEED/DIRECTION 28/300
HIGHEST GUST SPEED/DIRECTION 41/150
SKY COVER
AVERAGE SKY COVER 0.58
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 6 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 2
LIGHT RAIN 10 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 11 FOG W/VIS <= 1/4 MILE 0
HAZE 5
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
AUGUST AVERAGED SLIGHTLY WARMER THAN NORMAL. THE DRY WEATHER OF RECENT MONTHS CONTINUED,
WITH WELL BELOW NORMAL PRECIPITATION OBSERVED. AFTER ANOTHER DRY MONTH, YEAR-TO-DATE
RAINFALL NOW STANDS AT 10.37 INCHES BELOW NORMAL.
$$
DHOF