Climatological Report (Daily)
Issued by NWS Sterling, VA
Issued by NWS Sterling, VA
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
578
CDUS41 KLWX 152136
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
536 PM EDT SAT AUG 15 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR AUGUST 15 2026...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 87 3:59 PM 102 1988 87 0 89
MINIMUM 71 5:55 AM 45 1964 66 5 69
AVERAGE 79 76 3 79
PRECIPITATION (IN)
TODAY 0.00 2.18 2019 0.11 -0.11 0.27
MONTH TO DATE 2.17 1.74 0.43 0.59
SINCE JUN 1 11.80 10.19 1.61 10.46
SINCE JAN 1 26.72 27.43 -0.71 24.38
SNOWFALL (IN)
TODAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 1 13 -12 15
SINCE JUL 1 0 0 0 0
COOLING
TODAY 14 11 3 14
MONTH TO DATE 217 175 42 132
SINCE JUN 1 930 791 139 930
SINCE JAN 1 1103 897 206 1048
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 8 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 5:00 AM
LOWEST 48 12:00 PM
AVERAGE 71
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 100 1997
MINIMUM TEMPERATURE (F) 65 46 1979
SUNRISE AND SUNSET
AUGUST 15 2026........SUNRISE 6:23 AM EDT SUNSET 8:04 PM EDT
AUGUST 16 2026........SUNRISE 6:24 AM EDT SUNSET 8:03 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$