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
312 CDUS41 KLWX 190534 CLIIAD CLIMATE REPORT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 134 AM EDT THU SEP 19 2024 ................................... ...THE WASHINGTON DULLES DC CLIMATE SUMMARY FOR SEPTEMBER 18 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1960 TO 2024 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 75 3:03 PM 91 1978 79 -4 79 MINIMUM 67 4:12 AM 37 1990 57 10 61 AVERAGE 71 68 3 70 PRECIPITATION (IN) YESTERDAY 0.53 1.76 2003 0.15 0.38 0.00 MONTH TO DATE 0.61 2.33 -1.72 3.61 SINCE SEP 1 0.61 2.33 -1.72 3.61 SINCE JAN 1 26.39 31.55 -5.16 22.83 SNOWFALL (IN) YESTERDAY 0.0 MM MM 0.0 0.0 0.0 MONTH TO DATE 0.0 0.0 0.0 T SINCE SEP 1 0.0 0.0 0.0 T SINCE JUL 1 0.0 0.0 0.0 T SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 0 2 -2 0 MONTH TO DATE 11 10 1 1 SINCE SEP 1 11 10 1 1 SINCE JUL 1 13 11 2 1 COOLING YESTERDAY 6 4 2 5 MONTH TO DATE 67 116 -49 204 SINCE SEP 1 67 116 -49 204 SINCE JAN 1 1481 1172 309 1319 ................................................................... WIND (MPH) HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION NE (60) HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION NE (60) AVERAGE WIND SPEED 7.9 SKY COVER AVERAGE SKY COVER 1.0 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. HEAVY RAIN RAIN LIGHT RAIN FOG HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 97 4:00 AM LOWEST 79 6:00 PM AVERAGE 88 .......................................................... THE WASHINGTON DULLES DC CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 78 93 1977 1978 MINIMUM TEMPERATURE (F) 57 36 1984 SUNRISE AND SUNSET SEPTEMBER 19 2024.....SUNRISE 6:55 AM EDT SUNSET 7:11 PM EDT SEPTEMBER 20 2024.....SUNRISE 6:56 AM EDT SUNSET 7:09 PM EDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$