Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| Date | Time (edt) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Temperature (ºC) | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | Pressure | Precipitation (cm) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 11 | 10:56 | Calm | 16.09 | A Few Clouds | FEW024 | 27.8 | 22.2 | 72% | 30 | 76.15 | 1016.1 | ||||||
| 11 | 09:56 | Calm | 16.09 | Fair | CLR | 25.6 | 22.8 | 85% | 27 | 76.15 | 1016.2 | ||||||
| 11 | 08:56 | NW 6 | 16.09 | Fair | CLR | 24.4 | 23.3 | 94% | 24 | 76.17 | 1016.3 | ||||||
| 11 | 07:56 | Calm | 16.09 | Fair | CLR | 22.8 | 22.8 | 22.8 | 20 | 100% | 76.15 | 1015.9 | |||||
| 11 | 06:56 | NW 6 | 16.09 | Fair | CLR | 21 | 0 | 0% | 76.12 | 1015.6 | |||||||
| 11 | 05:56 | Calm | 16.09 | Partly Cloudy | SCT031 | 20 | 0 | 0% | 76.07 | 1014.9 | |||||||
| 11 | 04:56 | Calm | 16.09 | Fair | CLR | 21 | 0 | 0% | 76.02 | 1014.2 | |||||||
| 11 | 03:56 | Calm | 14.48 | Mostly Cloudy | BKN120 | 21 | 0 | 0% | 76.02 | 1014.2 | |||||||
| 11 | 02:56 | Calm | 16.09 | Fair | CLR | 20 | 0 | 0% | 76.02 | 1014.5 | |||||||
| 11 | 01:56 | Calm | 8.05 | Fair with Haze | CLR | 21 | 0 | 26.7 | 20.6 | 0% | 76.07 | 1015.0 | |||||
| 11 | 00:56 | Calm | 16.09 | Fair | CLR | 21 | 0 | 0% | 76.07 | 1015.2 | |||||||
| 10 | 23:56 | Calm | 14.48 | Fair | CLR | 21 | 0 | 0% | 76.07 | 1015.2 | |||||||
| 10 | 22:56 | Calm | 16.09 | Fair | CLR | 22 | 0 | 0% | 76.07 | 1014.8 | |||||||
| 10 | 21:56 | Calm | 16.09 | Fair | CLR | 22 | 0 | 0% | 76.02 | 1014.2 | |||||||
| 10 | 20:56 | Calm | 16.09 | Fair | CLR | 23.9 | 23.9 | 100% | 22 | 76 | 1013.9 | ||||||
| 10 | 19:56 | Calm | 16.09 | Fair | CLR | 26.7 | 23.9 | 28.3 | 26.7 | 85% | 29 | 76.02 | 1014.3 | ||||
| 10 | 18:56 | Vrbl 7 | 16.09 | Partly Cloudy | SCT100 | 28.3 | 23.3 | 74% | 32 | 76 | 1014.0 | ||||||
| 10 | 17:56 | NW 6 | 16.09 | Fair | CLR | 27.2 | 23.9 | 82% | 30 | 75.97 | 1013.6 | ||||||
| 10 | 16:56 | Vrbl 9 | 16.09 | Fair | CLR | 27.8 | 23.9 | 79% | 32 | 76 | 1014.1 | ||||||
| 10 | 15:56 | Calm | 16.09 | Partly Cloudy | FEW037 SCT100 | 27.2 | 23.3 | 79% | 30 | 76 | 1014.0 | ||||||
| 10 | 14:56 | SW 6 | 16.09 | A Few Clouds | FEW100 | 27.2 | 23.3 | 79% | 30 | 76 | 1014.1 | ||||||
| 10 | 13:56 | W 11 | 16.09 | Fair | CLR | 27.8 | 22.8 | 28.9 | 23.3 | 74% | 31 | 76.05 | 1014.7 | ||||
| 10 | 12:56 | W 9 | 16.09 | A Few Clouds | FEW110 | 27.8 | 23.3 | 77% | 31 | 76.05 | 1014.8 | ||||||
| 10 | 11:56 | W 13 | 16.09 | Partly Cloudy | SCT100 | 27.2 | 22.2 | 74% | 30 | 76.05 | 1014.8 | ||||||
| 10 | 10:56 | Vrbl 9 | 16.09 | Fair | CLR | 28.9 | 22.8 | 70% | 32 | 76.05 | 1014.5 | ||||||
| 10 | 09:56 | W 9 | 16.09 | Fair | CLR | 27.2 | 23.3 | 79% | 30 | 76.05 | 1014.5 | ||||||
| 10 | 08:56 | W 15 | 16.09 | Fair | CLR | 25.6 | 24.4 | 93% | 27 | 76.02 | 1014.3 | ||||||
| 10 | 07:56 | NW 7 | 16.09 | Fair | CLR | 23.3 | 23.3 | 23.3 | 20 | 100% | 76.02 | 1014.3 | |||||
| 10 | 06:56 | Calm | 16.09 | Fair | CLR | 21 | 0 | 0% | 75.95 | 1013.7 | |||||||
| 10 | 05:56 | W 7 | 16.09 | Fair | CLR | 20 | 0 | 0% | 75.95 | 1013.7 | |||||||
| 10 | 04:56 | W 7 | 16.09 | Fair | CLR | 20 | 0 | 0% | 75.9 | 1013.0 | |||||||
| 10 | 03:56 | W 9 | 16.09 | Fair | CLR | 21 | 0 | 0% | 75.9 | 1012.7 | |||||||
| 10 | 02:56 | W 7 | 16.09 | Fair | CLR | 21 | 0 | 0% | 75.87 | 1012.5 | |||||||
| 10 | 01:56 | Calm | 6.44 | Fair with Haze | CLR | 21 | 0 | 24.4 | 21.1 | 0% | 75.87 | 1012.4 | |||||
| 10 | 00:56 | W 6 | 12.87 | Fair | CLR | 22 | 0 | 0% | 75.92 | 1012.8 | |||||||
| 09 | 23:56 | W 6 | 16.09 | Fair | CLR | 22 | 0 | 0% | 75.92 | 1013.1 | |||||||
| 09 | 22:56 | Calm | 16.09 | Fair | CLR | 22 | 0 | 0% | 75.95 | 1013.5 | |||||||
| 09 | 21:56 | W 7 | 16.09 | Fair | CLR | 22 | 0 | 0% | 75.92 | 1013.2 | |||||||
| 09 | 20:56 | W 6 | 16.09 | A Few Clouds | FEW100 | 23 | 0 | 0% | 75.9 | 1012.8 | |||||||
| 09 | 19:56 | Calm | 16.09 | Fair | CLR | 24 | 0 | 31.1 | 22.2 | 0% | 75.87 | 1012.4 | 1.45 | ||||
| 09 | 18:56 | W 6 | 16.09 | Fair | CLR | 23 | 0 | 0% | 75.82 | 1011.6 | 0.13 | ||||||
| 09 | 17:56 | W 11 | 8.05 | Light Rain | SCT011 BKN075 OVC090 | 23 | 0 | 0% | 75.92 | 1013.2 | 0.13 | ||||||
| 09 | 16:56 | SW 7 | 16.09 | Thunderstorm in Vicinity Light Rain | BKN100 BKN110 | 23 | 0 | 0% | 75.87 | 1012.5 | 0.25 | 1.19 | |||||
| 09 | 15:56 | Calm | 9.66 | Thunderstorm in Vicinity Light Rain | FEW031 BKN080 OVC100 | 23 | 0 | 0% | 75.92 | 1013.0 | 0.94 | ||||||
| 09 | 14:56 | NW 30 G 46 | 6.44 | Thunderstorm Haze | SCT028 BKN038 OVC110 | 26.1 | 22.2 | 79% | 28 | 76 | 1013.9 | ||||||
| 09 | 13:56 | Vrbl 9 | 16.09 | Thunderstorm in Vicinity | SCT025 | 30.6 | 23.9 | 31.1 | 24.4 | 67% | 36 | 75.97 | 1013.6 | ||||
| 09 | 12:56 | S 7 | 16.09 | Overcast | OVC017 | 28.9 | 25.6 | 82% | 35 | 76.02 | 1014.2 | ||||||
| 09 | 11:56 | S 17 | 16.09 | Overcast | BKN011 OVC031 | 26.7 | 26.1 | 97% | 30 | 76.07 | 1015.1 | ||||||
| 09 | 10:56 | S 9 | 16.09 | Overcast | OVC011 | 26.1 | 25.6 | 97% | 29 | 76.12 | 1015.5 | ||||||
| 09 | 09:56 | S 11 | 16.09 | Overcast | OVC009 | 26.1 | 26.1 | 100% | 29 | 76.12 | 1015.6 | ||||||
| 09 | 08:56 | SW 7 | 16.09 | Overcast | OVC007 | 25 | 25 | 100% | 25 | 76.15 | 1015.9 | ||||||
| 09 | 07:56 | SW 9 | 16.09 | Overcast | OVC007 | 24 | 0 | 24.4 | 23.3 | 0% | 76.15 | 1015.9 | |||||
| 09 | 06:56 | S 6 | 16.09 | Overcast | OVC007 | 24 | 0 | 0% | 76.12 | 1015.8 | |||||||
| 09 | 05:56 | S 9 | 16.09 | Overcast | OVC007 | 24 | 0 | 0% | 76.12 | 1015.7 | |||||||
| 09 | 04:56 | S 7 | 16.09 | Overcast | BKN009 OVC014 | 24 | 0 | 0% | 76.15 | 1015.9 | |||||||
| 09 | 03:56 | S 6 | 11.27 | Mostly Cloudy | SCT009 BKN019 | 23 | 0 | 0% | 76.15 | 1016.1 | |||||||
| 09 | 02:56 | S 9 | 16.09 | Mostly Cloudy | SCT032 BKN100 | 23.3 | 23.3 | 100% | 76.17 | 1016.1 | |||||||
| 09 | 01:56 | S 7 | 16.09 | Overcast | OVC026 | 23.9 | 23.9 | 25 | 22.8 | 100% | 22 | 76.17 | 1016.5 | ||||
| 09 | 00:56 | S 7 | 16.09 | Fair | CLR | 23.3 | 23.3 | 100% | 76.23 | 1016.9 | |||||||
| 08 | 23:56 | S 7 | 16.09 | A Few Clouds | FEW095 | 23.9 | 23.9 | 100% | 22 | 76.23 | 1017.1 | ||||||
| 08 | 22:56 | S 6 | 16.09 | Fair | CLR | 24.4 | 23.9 | 97% | 24 | 76.25 | 1017.2 | ||||||
| 08 | 21:56 | Calm | 16.09 | Fair | CLR | 23.9 | 23.9 | 100% | 22 | 76.23 | 1017.2 | ||||||
| 08 | 20:56 | Calm | 12.87 | Fair | CLR | 23.9 | 23.9 | 100% | 22 | 76.25 | 1017.4 | ||||||
| 08 | 19:56 | Calm | 16.09 | Fair | CLR | 25 | 23.9 | 28.9 | 25 | 94% | 26 | 76.23 | 1017.1 | ||||
| 08 | 18:56 | SW 7 | 16.09 | Overcast | OVC028 | 27.2 | 22.2 | 74% | 30 | 76.25 | 1017.5 | ||||||
| 08 | 17:56 | Calm | 16.09 | Overcast | SCT030 OVC041 | 27.2 | 22.8 | 77% | 30 | 76.23 | 1017.1 | ||||||
| 08 | 16:56 | S 9 | 16.09 | Overcast | SCT028 OVC034 | 28.3 | 21.7 | 67% | 31 | 76.25 | 1017.5 | ||||||
| 08 | 15:56 | SE 11 | 16.09 | Overcast | OVC028 | 26.7 | 22.2 | 76% | 29 | 76.3 | 1018.0 | ||||||
| 08 | 14:56 | SE 6 | 16.09 | Overcast | BKN024 OVC035 | 27.2 | 21.7 | 72% | 29 | 76.38 | 1018.9 | ||||||
| 08 | 13:56 | Calm | 16.09 | Overcast | BKN016 OVC022 | 25.6 | 22.8 | 25.6 | 20.6 | 85% | 27 | 76.43 | 1019.9 | ||||
| 08 | 12:56 | Calm | 16.09 | Overcast | FEW015 OVC023 | 24.4 | 22.2 | 88% | 25 | 76.48 | 1020.4 | ||||||
| 08 | 11:56 | Calm | 16.09 | Overcast | OVC014 | 23.9 | 22.2 | 90% | 23 | 76.48 | 1020.7 | ||||||
| Date | Time (edt) | Wind (kph) | Vis. (km) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°C) | Heat Index (°C) | altimeter (cm) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºC) | Pressure | Precipitation (cm) | |||||||||||||||