Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| 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) | |||||||||||||||