1. Station Data & Metadata
  2. VA_ASOS
  3. or select from map

Information Last Ob Photographs Meteogram Network Table Neighbors Monthly Summaries Observation History Wind Roses Custom Wind Roses Data Calendar Satellite Cloud Product Download Terminal Aerodome Forecast

Data Calendar for WASHINGTON/DULLES

The calendar chart below shows the daily reported climate variables. You can click on a date to display the values for all sites for that day. Time stamps are displayed in the America/New_York timezone. Wind speeds are in mph and temperatures in Fahrenheit. Values flagged with a (E) are estimated by the IEM.

Year:  

Month:  

 

Jan 2025Feb 2025 Mar 2025
SundayMondayTuesdayWednesday ThursdayFridaySaturday
26272829303101
High: 51
Low: 28
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: NNW @ 12.1
Gust:
NW @ 34
(7:54 AM)
RH% Min/Max: 27-96
Feel Min/Max: 21 to 50
02
High: 37
Low: 22
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: SE @ 6.4
Gust:
SSE @ 19
(3:55 PM)
RH% Min/Max: 45-69
Feel Min/Max: 17 to 32		03
High: 53
Low: 28
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: SSW @ 3.4
Gust:
SSW @ 14
(12:50 PM)
RH% Min/Max: 56-89
Feel Min/Max: 24 to 53		04
High: 60
Low: 34
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: NW @ 10.1
Gust:
NW @ 42
(11:49 AM)
RH% Min/Max: 37-86
Feel Min/Max: 30 to 60		05
High: 39
Low: 32
Precip: 0.03
Snow: 0
Snow Depth: 0
Avg Wind: NNE @ 6.0
Gust:
N @ 26
(2:03 AM)
RH% Min/Max: 39-85
Feel Min/Max: 26 to 39		06
High: 47
Low: 32
Precip: 0.66
Snow: 0
Snow Depth: 0
Avg Wind: S @ 5.5
Gust:
SSE @ 24
(6:02 AM)
RH% Min/Max: 83-96
Feel Min/Max: 24 to 43		07
High: 52
Low: 30
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: NNW @ 11.1
Gust:
NW @ 33
(2:05 PM)
RH% Min/Max: 28-93
Feel Min/Max: 31 to 51		08
High: 35
Low: 29
Precip: 0.04
Snow: 0.1
Snow Depth: 0
Avg Wind: SSE @ 6.0
Gust:
S @ 24
(9:19 PM)
RH% Min/Max: 56-92
Feel Min/Max: 22 to 31
09
High: 45
Low: 31
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: NNW @ 8.9
Gust:
WNW @ 34
(10:06 AM)
RH% Min/Max: 47-96
Feel Min/Max: 26 to 38		10
High: 45
Low: 32
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: N @ 7.9
Gust:
NW @ 19
(2:44 PM)
RH% Min/Max: 33-61
Feel Min/Max: 27 to 39		11
High: 36
Low: 27
Precip: 0.50
Snow: 4.8
Snow Depth: 0
Avg Wind: ESE @ 4.5
Gust:
S @ 18
(12:27 PM)
RH% Min/Max: 44-92
Feel Min/Max: 22 to 31		12
High: 35
Low: 30
Precip: 0.22
Snow: T
Snow Depth: 5
Avg Wind: NNE @ 4.1
Gust:
N @ 13
(3:18 AM)
RH% Min/Max: 81-96
Feel Min/Max: 22 to 34		13
High: 54
Low: 33
Precip: 0.08
Snow: 0
Snow Depth: 2
Avg Wind: WNW @ 11.2
Gust:
NW @ 52
(5:51 PM)
RH% Min/Max: 50-100
Feel Min/Max: 24 to 53		14
High: 42
Low: 28
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: NW @ 9.3
Gust:
NW @ 35
(2:16 AM)
RH% Min/Max: 24-56
Feel Min/Max: 19 to 39		15
High: 40
Low: 32
Precip: 0.47
Snow: 0
Snow Depth: 0
Avg Wind: SSE @ 6.7
Gust:
SSE @ 19
(1:47 PM)
RH% Min/Max: 41-92
Feel Min/Max: 26 to 35
16
High: 62
Low: 36
Precip: 0.42
Snow: 0
Snow Depth: 0
Avg Wind: WSW @ 16.9
Gust:
NW @ 63
(3:39 PM)
RH% Min/Max: 45-96
Feel Min/Max: 25 to 62		17
High: 40
Low: 28
Precip: Trace
Snow: 0
Snow Depth: 0
Avg Wind: WNW @ 16.0
Gust:
WNW @ 48
(3:49 AM)
RH% Min/Max: 30-69
Feel Min/Max: 16 to 32		18
High: 36
Low: 20
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: NNW @ 12.7
Gust:
NNW @ 32
(8:40 AM)
RH% Min/Max: 23-43
Feel Min/Max: 6 to 26		19
High: 25
Low: 18
Precip: Trace
Snow: T
Snow Depth: 0
Avg Wind: NNW @ 7.1
Gust:
N @ 29
(12:14 AM)
RH% Min/Max: 41-68
Feel Min/Max: 4 to 25		20
High: 30
Low: 22
Precip: Trace
Snow: T
Snow Depth: 0
Avg Wind: NW @ 17.4
Gust:
WNW @ 42
(4:56 PM)
RH% Min/Max: 38-65
Feel Min/Max: 7 to 16		21
High: 38
Low: 24
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: NW @ 16.0
Gust:
NNW @ 40
(12:51 AM)
RH% Min/Max: 31-60
Feel Min/Max: 9 to 27		22
High: 42
Low: 19
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: SW @ 5.7
Gust:
SSW @ 19
(2:00 PM)
RH% Min/Max: 32-68
Feel Min/Max: 15 to 37
23
High: 52
Low: 20
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: WNW @ 3.8
Gust:
WNW @ 29
(9:38 AM)
RH% Min/Max: 22-74
Feel Min/Max: 19 to 52		24
High: 58
Low: 27
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: S @ 6.2
Gust:
SSW @ 23
(3:35 PM)
RH% Min/Max: 27-66
Feel Min/Max: 28 to 58		25
High: 67
Low: 35
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: WSW @ 5.2
Gust:
NW @ 22
(5:19 PM)
RH% Min/Max: 27-73
Feel Min/Max: 33 to 66		26
High: 66
Low: 32
Precip: 0.00
Snow: 0
Snow Depth: 0
Avg Wind: SSW @ 4.7
Gust:
ESE @ 22
(11:06 AM)
RH% Min/Max: 29-85
Feel Min/Max: 30 to 65		27
High: 50
Low: 47
Precip: M
RH% Min/Max: 58-65
Feel Min/Max: 44 to 50		28

Precip: M		01

The data presented here provided by IEM API webservice: daily.json. A simple CSV option exists as well.

Daily High/Low Plot


Description: This chart of the monthly temperature data. The bars are the observations and the dots are climatology.

Daily Rainfall


Description: This chart is of daily precipitation for the month. The red line would be an average month while the blue line and bars are observations.

Daily Average Wind Speeds


Description: This chart is of the daily average wind speeds.

The data presented here provided by IEM API webservice: daily.json. A simple CSV option exists as well.