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
589
CDUS41 KLWX 140624
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
224 AM EDT MON SEP 14 2026
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 13 2026...
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)
YESTERDAY
MAXIMUM 90 3:19 PM 94 1974 80 10 87
MINIMUM 72 6:46 AM 43 1985 59 13 51
AVERAGE 81 70 11 69
PRECIPITATION (IN)
YESTERDAY 0.03 0.68 1983 0.13 -0.10 0.00
MONTH TO DATE 1.42 1.61 -0.19 0.18
SINCE SEP 1 1.42 1.61 -0.19 0.18
SINCE JAN 1 30.82 30.83 -0.01 24.82
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 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
YESTERDAY 0 1 -1 0
MONTH TO DATE 0 4 -4 6
SINCE SEP 1 0 4 -4 6
SINCE JUL 1 0 5 -5 8
COOLING
YESTERDAY 16 6 10 4
MONTH TO DATE 158 92 66 54
SINCE SEP 1 158 92 66 54
SINCE JAN 1 1438 1148 290 1202
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 3.0
SKY COVER
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 100 5:00 AM
LOWEST 55 3:00 PM
AVERAGE 78
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 95 1998
MINIMUM TEMPERATURE (F) 59 37 1985
SUNRISE AND SUNSET
SEPTEMBER 14 2026.....SUNRISE 6:50 AM EDT SUNSET 7:20 PM EDT
SEPTEMBER 15 2026.....SUNRISE 6:51 AM EDT SUNSET 7:18 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$