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
410
CDUS41 KLWX 302122
CLIIAD
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
522 PM EDT MON JUN 30 2025
...................................
...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR JUNE 30 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1960 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 92 3:13 PM 98 1964 87 5 97
MINIMUM 72 1:59 AM 51 1989 66 6 74
AVERAGE 82 76 6 86
PRECIPITATION (IN)
TODAY T 1.25 1972 0.14 -0.14 0.05
MONTH TO DATE 6.93 4.30 2.63 0.69
SINCE JUN 1 6.93 4.30 2.63 0.69
SINCE JAN 1 20.85 21.54 -0.69 17.99
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 15.5 21.0 -5.5 11.7
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 0 0 0
MONTH TO DATE 15 11 4 0
SINCE JUN 1 15 11 4 0
SINCE JUL 1 4106 4603 -497 3691
COOLING
TODAY 17 11 6 21
MONTH TO DATE 321 238 83 354
SINCE JUN 1 321 238 83 354
SINCE JAN 1 439 344 95 537
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 4.9
SKY COVER
AVERAGE SKY COVER 0.8
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94 5:00 AM
LOWEST 56 3:00 PM
AVERAGE 75
..........................................................
THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 96 2012
MINIMUM TEMPERATURE (F) 66 41 1988
SUNRISE AND SUNSET
JUNE 30 2025..........SUNRISE 5:48 AM EDT SUNSET 8:39 PM EDT
JULY 1 2025..........SUNRISE 5:48 AM EDT SUNSET 8:39 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$