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
523
CDUS41 KLWX 212134
CLIDCA
CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
534 PM EDT MON JUL 21 2025
...................................
...THE WASHINGTON NATIONAL DC CLIMATE SUMMARY FOR JULY 21 2025...
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 87 3:59 PM 104 1926 90 -3 93
MINIMUM 76 5:27 AM 56 1890 73 3 72
1909
AVERAGE 82 81 1 83
PRECIPITATION (IN)
TODAY T 4.00 2018 0.14 -0.14 0.00
MONTH TO DATE 2.41 3.04 -0.63 1.09
SINCE JUN 1 7.89 7.24 0.65 2.24
SINCE JAN 1 25.93 23.37 2.56 20.78
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 8 4 4 0
SINCE JUL 1 0 0 0 0
COOLING
TODAY 17 16 1 18
MONTH TO DATE 363 333 30 427
SINCE JUN 1 737 676 61 877
SINCE JAN 1 938 843 95 1102
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 7.7
SKY COVER
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 7:00 AM
LOWEST 48 3:00 PM
AVERAGE 65
..........................................................
THE WASHINGTON NATIONAL DC CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 103 1926
MINIMUM TEMPERATURE (F) 73 53 1890
SUNRISE AND SUNSET
JULY 21 2025..........SUNRISE 6:00 AM EDT SUNSET 8:29 PM EDT
JULY 22 2025..........SUNRISE 6:01 AM EDT SUNSET 8:28 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$