Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
10 02:56 W 5 10.00 Fair CLR 69.8 0 0% 29.87 1012.5
10 01:56 Calm 4.00 Fair with Haze CLR 69.8 0 75.9 70 0% 29.87 1012.4
10 00:56 W 3 8.00 Fair CLR 71.6 0 0% 29.89 1012.8
09 23:56 W 3 10.00 Fair CLR 71.6 0 0% 29.89 1013.1
09 22:56 Calm 10.00 Fair CLR 71.6 0 0% 29.9 1013.5
09 21:56 W 5 10.00 Fair CLR 71.6 0 0% 29.89 1013.2
09 20:56 W 3 10.00 A Few Clouds FEW100 73.4 0 0% 29.88 1012.8
09 19:56 Calm 10.00 Fair CLR 75.2 0 88 72 0% 29.87 1012.4 0.57
09 18:56 W 3 10.00 Fair CLR 73.4 0 0% 29.85 1011.6 0.05
09 17:56 W 7 5.00 Light Rain SCT011 BKN075 OVC090 73.4 0 0% 29.89 1013.2 0.05
09 16:56 SW 5 10.00 Thunderstorm in Vicinity Light Rain BKN100 BKN110 73.4 0 0% 29.87 1012.5 0.1 0.47
09 15:56 Calm 6.00 Thunderstorm in Vicinity Light Rain FEW031 BKN080 OVC100 73.4 0 0% 29.89 1013.0 0.37
09 14:56 NW 18 G 29 4.00 Thunderstorm Haze SCT028 BKN038 OVC110 79 72 79% 82 29.92 1013.9
09 13:56 Vrbl 6 10.00 Thunderstorm in Vicinity SCT025 87.1 75 88 75.9 67% 97 29.91 1013.6
09 12:56 S 5 10.00 Overcast OVC017 84 78.1 82% 95 29.93 1014.2
09 11:56 S 10 10.00 Overcast BKN011 OVC031 80.1 79 97% 87 29.95 1015.1
09 10:56 S 6 10.00 Overcast OVC011 79 78.1 97% 83 29.97 1015.5
09 09:56 S 7 10.00 Overcast OVC009 79 79 100% 84 29.97 1015.6
09 08:56 SW 5 10.00 Overcast OVC007 77 77 100% 78 29.98 1015.9
09 07:56 SW 6 10.00 Overcast OVC007 75.2 0 75.9 73.9 0% 29.98 1015.9
09 06:56 S 3 10.00 Overcast OVC007 75.2 0 0% 29.97 1015.8
09 05:56 S 6 10.00 Overcast OVC007 75.2 0 0% 29.97 1015.7
09 04:56 S 5 10.00 Overcast BKN009 OVC014 75.2 0 0% 29.98 1015.9
09 03:56 S 3 7.00 Mostly Cloudy SCT009 BKN019 73.4 0 0% 29.98 1016.1
09 02:56 S 6 10.00 Mostly Cloudy SCT032 BKN100 73.9 73.9 100% 29.99 1016.1
09 01:56 S 5 10.00 Overcast OVC026 75 75 77 73 100% 72 29.99 1016.5
09 00:56 S 5 10.00 Fair CLR 73.9 73.9 100% 30.01 1016.9
08 23:56 S 5 10.00 A Few Clouds FEW095 75 75 100% 72 30.01 1017.1
08 22:56 S 3 10.00 Fair CLR 75.9 75 97% 75 30.02 1017.2
08 21:56 Calm 10.00 Fair CLR 75 75 100% 72 30.01 1017.2
08 20:56 Calm 8.00 Fair CLR 75 75 100% 72 30.02 1017.4
08 19:56 Calm 10.00 Fair CLR 77 75 84 77 94% 78 30.01 1017.1
08 18:56 SW 5 10.00 Overcast OVC028 81 72 74% 85 30.02 1017.5
08 17:56 Calm 10.00 Overcast SCT030 OVC041 81 73 77% 86 30.01 1017.1
08 16:56 S 6 10.00 Overcast SCT028 OVC034 82.9 71.1 67% 88 30.02 1017.5
08 15:56 SE 7 10.00 Overcast OVC028 80.1 72 76% 84 30.04 1018.0
08 14:56 SE 3 10.00 Overcast BKN024 OVC035 81 71.1 72% 85 30.07 1018.9
08 13:56 Calm 10.00 Overcast BKN016 OVC022 78.1 73 78.1 69.1 85% 81 30.09 1019.9
08 12:56 Calm 10.00 Overcast FEW015 OVC023 75.9 72 88% 76 30.11 1020.4
08 11:56 Calm 10.00 Overcast OVC014 75 72 90% 74 30.11 1020.7
08 10:56 Vrbl 5 8.00 Overcast OVC009 73.9 73 97% 30.1 1020.2
08 09:56 E 5 10.00 Overcast OVC007 71.6 0 0% 30.09 1020.0
08 08:56 Calm 10.00 Overcast OVC007 69.8 0 0% 30.09 1019.9
08 07:56 Calm 10.00 Overcast OVC007 69.8 0 71.1 69.1 0% 30.09 1019.7 0.11
08 06:56 Calm 5.00 Overcast with Haze OVC005 69.8 0 0% 30.07 1019.3
08 05:56 Calm 6.00 Overcast with Haze BKN005 OVC009 69.8 0 0% 30.07 1019.0 0.01
08 04:56 Calm 2.50 Rain BKN005 OVC026 69.8 0 0% 30.05 1018.6 0.09 0.1
08 03:56 Calm 7.00 Light Rain OVC022 71.6 0 0% 30.05 1018.5 0.01
08 02:56 Vrbl 3 6.00 Overcast with Haze BKN017 OVC024 71.6 0 0% 30.05 1018.6
08 01:56 Vrbl 3 5.00 Overcast with Haze OVC022 71.6 0 79 71.1 0% 30.05 1018.4 0.38
08 00:56 Vrbl 3 5.00 Overcast with Haze OVC020 71.6 0 0% 30.05 1018.4
07 23:56 Vrbl 3 4.00 Mostly Cloudy with Haze BKN007 BKN047 BKN070 73.4 0 0% 30.05 1018.4 0.01
07 22:56 Vrbl 3 3.00 Light Rain SCT022 BKN041 OVC110 73.4 0 0% 30.05 1018.6 0.37 0.37
07 21:56 E 5 10.00 Overcast BKN014 BKN024 OVC035 75.9 75.9 100% 75 30.04 1018.1
07 20:56 SE 3 10.00 Overcast FEW019 OVC026 79 77 94% 83 30.02 1017.3
07 19:56 Calm 10.00 A Few Clouds FEW100 80.1 75.9 82 77 87% 85 30 1016.7
07 18:56 NW 3 10.00 Fair CLR 81 73.9 79% 86 30.01 1016.9
07 17:56 Calm 10.00 Fair CLR 79 75.9 90% 83 30 1016.8
07 16:56 Calm 10.00 Mostly Cloudy BKN026 81 75 82% 87 30.01 1017.0
07 15:56 Calm 10.00 Overcast OVC018 80.1 75 85% 85 30.02 1017.4
07 14:56 Calm 10.00 Overcast OVC018 77 75.9 96% 78 30.03 1017.8
07 13:56 Vrbl 3 10.00 Overcast OVC011 78.1 75 78.1 71.1 90% 81 30.04 1018.0 0.01
07 12:56 Calm 10.00 Overcast OVC009 75 75 100% 72 30.05 1018.6
07 11:56 Calm 10.00 Overcast OVC007 73.9 73.9 100% 30.06 1018.8
07 10:56 Calm 7.00 Overcast OVC005 73.4 0 0% 30.06 1018.9 0.01 0.01
07 09:56 Calm 3.00 Fog/Mist OVC003 71.6 0 0% 30.05 1018.5
07 08:56 Calm 1.75 Fog/Mist OVC003 71.6 0 0% 30.05 1018.6
07 07:56 Vrbl 3 1.75 Fog/Mist OVC003 71.6 0 73 71.1 0% 30.04 1018.1
07 06:56 Calm 1.25 Fog/Mist OVC003 71.6 0 0% 30.03 1017.6
07 05:56 Calm 0.75 Fog/Mist OVC003 71.6 0 0% 30.01 1016.9
07 04:56 Vrbl 3 1.25 Fog/Mist OVC003 71.6 0 0% 29.99 1016.5
07 03:56 Vrbl 3 2.50 Fog/Mist OVC003 71.6 0 0% 29.99 1016.3
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)