Climatological Report (Monthly) Issued by NWS Sterling, VA
000
CXUS51 KLWX 012138
CLMIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
538 PM EDT WED NOV 01 2023
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 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 96 10/02/2019
LOW 15 10/24/1969
HIGHEST 86 10/28 83 3 80
LOWEST 34 10/24 27 7 31
AVG. MAXIMUM 72.5 67.8 4.7 66.7
AVG. MINIMUM 47.8 45.3 2.5 43.3
MEAN 60.2 56.6 3.6 55.0
DAYS MAX >= 90 0 0.2 -0.2 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 2.4 -2.4 2
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.22 2005
MINIMUM T 1963
TOTALS 0.67 3.65 -2.98 2.24
DAILY AVG. 0.02 0.12 -0.10 0.07
DAYS >= .01 7 8.1 -1.1 8
DAYS >= .10 2 5.1 -3.1 6
DAYS >= .50 0 2.4 -2.4 2
DAYS >= 1.00 0 1.2 -1.2 0
GREATEST
24 HR. TOTAL 0.34 10/14 TO 10/15 0.90
STORM TOTAL 0.32 0.62
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL 1.3 1979
TOTALS 0.0 0.0 0.0 0.0
SINCE 7/1 T 0.0 0.0 MM
DAYS >= TRACE 0 0.0 0.0 MM
DAYS >= 1.0 0 0.0 0.0 MM
GREATEST
SNOW DEPTH 0 0
DEGREE DAYS
HEATING TOTAL 190 284 -94 302
SINCE 7/1 206 329 -123 MM
COOLING TOTAL 49 22 27 0
SINCE 1/1 1380 1230 150 MM
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 5.6
HIGHEST WIND SPEED/DIRECTION 30/290
30/310
HIGHEST GUST SPEED/DIRECTION 43/310
SKY COVER
AVERAGE SKY COVER 0.50
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 0
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 1
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
&&
OCT 2023 WAS THE SEVENTH WARMEST OCT ON RECORD. THE MONTH HAD
TWO STRETCHES OF WELL ABOVE NORMAL TEMPERATURES, ONE AT THE
START OF THE MONTH AND ANOTHER ONE AT THE END OF THE MONTH, WITH
HIGH TEMPERATURES WELL ABOVE 80 DEGREES. IN TERMS OF PRECIPITATION,
OCT 2023 ENDED AS THE FOURTH DRIEST ON RECORD. A PERSISTENT
UPPER LEVEL RIDGE RESULTED IN VERY WARM AND DRY CONDITIONS
THROUGHOUT THE MONTH.
$$
LFR