Weather History for Gaithersburg, MD

Thursday, February 21, 2013 — View Current Weather Conditions
Thursday, February 21, 2013
« Previous Day
Next Day »
Daily Weekly Monthly Custom
  Actual Average (KCGS) Record (KCGS)
Temperature
Mean Temperature 28 °F -  
Max Temperature 35 °F 48 °F 70 °F (1971)
Min Temperature 21 °F 28 °F 9 °F (1959)
Degree Days
Heating Degree Days 37    
Moisture
Dew Point 12 °F    
Average Humidity 52    
Maximum Humidity 74    
Minimum Humidity 38    
Precipitation
Precipitation 0.00 in - - ()
Sea Level Pressure
Sea Level Pressure 30.21 in    
Wind
Wind Speed 12 mph (NW)    
Max Wind Speed 20 mph    
Max Gust Speed 30 mph    
Visibility 10 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Seasonal Weather Averages
Daily Weather History Graph
Certify This Report
Weather History Location
Airport:
 
Trip Planner
Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!
Date:
Radar Archive
Click to View Archived Radar Loop
This image may take a moment to generate.
Local Photos

There were no photos found matching this date and location.
Visit WunderPhotos
Astronomy
Feb. 21, 2013 Rise Set
Actual Time 6:52 AM EST 5:52 PM EST
Civil Twilight 6:25 AM EST 6:19 PM EST
Nautical Twilight 5:54 AM EST 6:51 PM EST
Astronomical Twilight 5:23 AM EST 7:22 PM EST
Moon 2:06 PM EST (2/21) 3:54 AM EST (2/21)
Length Of Visible Light 11h 54m
Length of Day
11h 00m
Waxing Gibbous, 83% of the Moon is Illuminated
Feb 21
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter
Visit Astronomy
Hourly Weather History & Observations
Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 23.0 °F 9.6 °F 8.6 °F 54% 30.14 in 10.0 mi NW 16.1 mph 25.3 mph N/A   Clear
12:35 AM 23.0 °F 11.7 °F 8.6 °F 54% 30.14 in 10.0 mi NNW 11.5 mph 21.9 mph N/A   Partly Cloudy
12:55 AM 23.0 °F 10.6 °F 8.6 °F 54% 30.14 in 10.0 mi NW 13.8 mph 20.7 mph N/A   Partly Cloudy
1:15 AM 21.2 °F 9.5 °F 8.6 °F 58% 30.14 in 10.0 mi NW 11.5 mph - N/A   Clear
1:35 AM 21.2 °F 10.9 °F 8.6 °F 58% 30.14 in 10.0 mi NW 9.2 mph 18.4 mph N/A   Clear
1:55 AM 21.2 °F 9.5 °F 8.6 °F 58% 30.14 in 10.0 mi NW 11.5 mph - N/A   Clear
2:15 AM 21.2 °F 9.5 °F 8.6 °F 58% 30.14 in 10.0 mi NW 11.5 mph - N/A   Clear
2:35 AM 21.2 °F 10.9 °F 8.6 °F 58% 30.14 in 10.0 mi NW 9.2 mph - N/A   Clear
2:55 AM 21.2 °F 8.9 °F 8.6 °F 58% 30.14 in 10.0 mi NW 12.7 mph 19.6 mph N/A   Clear
3:15 AM 21.2 °F 9.5 °F 8.6 °F 58% 30.13 in 10.0 mi NNW 11.5 mph - N/A   Clear
3:35 AM 21.2 °F 10.1 °F 8.6 °F 58% 30.13 in 10.0 mi NW 10.4 mph 23.0 mph N/A   Clear
3:55 AM 21.2 °F 8.9 °F 8.6 °F 58% 30.13 in 10.0 mi NW 12.7 mph 18.4 mph N/A   Clear
4:15 AM 21.2 °F 11.7 °F 8.6 °F 58% 30.14 in 10.0 mi NW 8.1 mph - N/A   Clear
4:35 AM 21.2 °F 7.8 °F 8.6 °F 58% 30.15 in 10.0 mi WNW 15.0 mph 20.7 mph N/A   Partly Cloudy
4:55 AM 21.2 °F 9.5 °F 8.6 °F 58% 30.15 in 10.0 mi NW 11.5 mph - N/A   Clear
5:15 AM 21.2 °F 10.1 °F 8.6 °F 58% 30.16 in 10.0 mi NW 10.4 mph 18.4 mph N/A   Partly Cloudy
5:35 AM 21.2 °F 8.3 °F 8.6 °F 58% 30.16 in 10.0 mi NW 13.8 mph - N/A   Scattered Clouds
5:55 AM 21.2 °F 10.1 °F 8.6 °F 58% 30.16 in 10.0 mi NW 10.4 mph 21.9 mph N/A   Mostly Cloudy
6:15 AM 23.0 °F 12.4 °F 8.6 °F 54% 30.16 in 10.0 mi NNW 10.4 mph - N/A   Partly Cloudy
6:55 AM 23.0 °F 11.7 °F 8.6 °F 54% 30.17 in 10.0 mi NW 11.5 mph 17.3 mph N/A   Clear
7:15 AM 23.0 °F 12.4 °F 8.6 °F 54% 30.18 in 10.0 mi NW 10.4 mph 17.3 mph N/A   Mostly Cloudy
7:35 AM 24.8 °F 14.0 °F 10.4 °F 54% 30.18 in 10.0 mi NW 11.5 mph 17.3 mph N/A   Overcast
7:55 AM 24.8 °F 11.1 °F 10.4 °F 54% 30.19 in 10.0 mi NW 18.4 mph - N/A   Mostly Cloudy
8:15 AM 24.8 °F 11.9 °F 10.4 °F 54% 30.19 in 10.0 mi NW 16.1 mph 23.0 mph N/A   Mostly Cloudy
8:35 AM 24.8 °F 11.9 °F 10.4 °F 54% 30.20 in 10.0 mi NW 16.1 mph 19.6 mph N/A   Partly Cloudy
8:55 AM 26.6 °F 15.2 °F 12.2 °F 55% 30.21 in 10.0 mi NNW 13.8 mph 23.0 mph N/A   Scattered Clouds
9:15 AM 28.4 °F 16.6 °F 12.2 °F 51% 30.20 in 10.0 mi NW 16.1 mph 23.0 mph N/A   Overcast
9:35 AM 26.6 °F 16.2 °F 12.2 °F 55% 30.20 in 10.0 mi NNW 11.5 mph 20.7 mph N/A   Mostly Cloudy
9:55 AM 28.4 °F 18.5 °F 12.2 °F 51% 30.21 in 10.0 mi NW 11.5 mph 18.4 mph N/A   Overcast
10:15 AM 28.4 °F 20.4 °F 10.4 °F 47% 30.22 in 10.0 mi NNW 8.1 mph 24.2 mph N/A   Overcast
10:35 AM 28.4 °F 19.1 °F 10.4 °F 47% 30.23 in 10.0 mi NNW 10.4 mph 20.7 mph N/A   Mostly Cloudy
10:55 AM 30.2 °F 19.8 °F 12.2 °F 47% 30.22 in 10.0 mi NW 13.8 mph 19.6 mph N/A   Mostly Cloudy
11:15 AM 30.2 °F 20.2 °F 12.2 °F 47% 30.20 in 10.0 mi North 12.7 mph 20.7 mph N/A   Partly Cloudy
11:35 AM 30.2 °F 19.3 °F 12.2 °F 47% 30.20 in 10.0 mi NW 15.0 mph 24.2 mph N/A   Clear
11:55 AM 32.0 °F 20.5 °F 12.2 °F 44% 30.20 in 10.0 mi NW 18.4 mph 26.5 mph N/A   Clear
12:15 PM 33.8 °F 22.8 °F 12.2 °F 41% 30.20 in 10.0 mi WNW 18.4 mph 23.0 mph N/A   Clear
12:35 PM 33.8 °F 24.8 °F 12.2 °F 41% 30.20 in 10.0 mi NW 12.7 mph 25.3 mph N/A   Clear
12:55 PM 33.8 °F 24.3 °F 12.2 °F 41% 30.20 in 10.0 mi WNW 13.8 mph 21.9 mph N/A   Clear
1:15 PM 33.8 °F 22.8 °F 12.2 °F 41% 30.19 in 10.0 mi NW 18.4 mph 24.2 mph N/A   Clear
1:35 PM 35.6 °F 26.2 °F 14.0 °F 41% 30.18 in 10.0 mi NW 15.0 mph 24.2 mph N/A   Clear
1:55 PM 35.6 °F 27.1 °F 12.2 °F 38% 30.17 in 10.0 mi NNW 12.7 mph 29.9 mph N/A   Clear
2:15 PM 35.6 °F 24.8 °F 14.0 °F 41% 30.18 in 10.0 mi NW 19.6 mph 25.3 mph N/A   Clear
2:35 PM 35.6 °F 27.1 °F 14.0 °F 41% 30.18 in 10.0 mi NNW 12.7 mph 24.2 mph N/A   Clear
2:55 PM 35.6 °F 26.6 °F 14.0 °F 41% 30.18 in 10.0 mi NNW 13.8 mph 25.3 mph N/A   Clear
3:15 PM 35.6 °F 27.1 °F 14.0 °F 41% 30.18 in 10.0 mi NNW 12.7 mph 23.0 mph N/A   Clear
3:35 PM 35.6 °F 25.9 °F 14.0 °F 41% 30.18 in 10.0 mi NW 16.1 mph 21.9 mph N/A   Clear
3:55 PM 35.6 °F 27.5 °F 14.0 °F 41% 30.19 in 10.0 mi NNW 11.5 mph 21.9 mph N/A   Clear
4:15 PM 35.6 °F 27.1 °F 14.0 °F 41% 30.19 in 10.0 mi NNW 12.7 mph 19.6 mph N/A   Clear
4:35 PM 35.6 °F 29.9 °F 12.2 °F 38% 30.19 in 10.0 mi North 6.9 mph 18.4 mph N/A   Clear
4:55 PM 33.8 °F 27.0 °F 12.2 °F 41% 30.21 in 10.0 mi NNW 8.1 mph 16.1 mph N/A   Clear
5:15 PM 33.8 °F 25.3 °F 12.2 °F 41% 30.23 in 10.0 mi NNW 11.5 mph 19.6 mph N/A   Clear
5:35 PM 33.8 °F 25.8 °F 12.2 °F 41% 30.24 in 10.0 mi NNW 10.4 mph 18.4 mph N/A   Clear
5:55 PM 30.2 °F 20.8 °F 12.2 °F 47% 30.25 in 10.0 mi NW 11.5 mph 17.3 mph N/A   Clear
6:15 PM 30.2 °F 20.2 °F 12.2 °F 47% 30.26 in 10.0 mi NNW 12.7 mph 16.1 mph N/A   Clear
6:35 PM 30.2 °F 21.3 °F 14.0 °F 51% 30.27 in 10.0 mi NNW 10.4 mph 16.1 mph N/A   Clear
6:55 PM 30.2 °F 22.6 °F 12.2 °F 47% 30.28 in 10.0 mi NW 8.1 mph - N/A   Clear
7:15 PM 28.4 °F 22.2 °F 12.2 °F 51% 30.30 in 10.0 mi NNW 5.8 mph - N/A   Clear
7:35 PM 28.4 °F 22.2 °F 14.0 °F 55% 30.30 in 10.0 mi NNW 5.8 mph - N/A   Clear
7:55 PM 28.4 °F 21.2 °F 14.0 °F 55% 30.30 in 10.0 mi NNW 6.9 mph - N/A   Clear
8:15 PM 28.4 °F 21.2 °F 14.0 °F 55% 30.31 in 10.0 mi NNW 6.9 mph - N/A   Clear
8:35 PM 28.4 °F 23.3 °F 14.0 °F 55% 30.32 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:55 PM 28.4 °F 24.6 °F 14.0 °F 55% 30.32 in 10.0 mi NNW 3.5 mph - N/A   Clear
9:15 PM 26.6 °F - 14.0 °F 59% 30.32 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 26.6 °F - 15.8 °F 64% 30.32 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 26.6 °F 22.6 °F 14.0 °F 59% 30.32 in 10.0 mi NNW 3.5 mph - N/A   Clear
10:15 PM 26.6 °F 22.6 °F 15.8 °F 64% 30.33 in 10.0 mi NW 3.5 mph - N/A   Clear
10:35 PM 26.6 °F 21.2 °F 15.8 °F 64% 30.34 in 10.0 mi NNW 4.6 mph - N/A   Clear
10:55 PM 26.6 °F 22.6 °F 15.8 °F 64% 30.34 in 10.0 mi NW 3.5 mph - N/A   Clear
11:15 PM 26.6 °F 22.6 °F 15.8 °F 64% 30.34 in 10.0 mi NW 3.5 mph - N/A   Clear
11:35 PM 24.8 °F - 17.6 °F 74% 30.33 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 24.8 °F 20.5 °F 17.6 °F 74% 30.31 in 10.0 mi NNE 3.5 mph - N/A   Clear
Show full METARS | METAR FAQ | Comma Delimited File