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. | ||||||||||||||||
| 20 | 08:56 | Calm | 16.09 | Overcast | OVC110 | 22.8 | 22.2 | 96% | 76.17 | 1016.6 | |||||||
| 20 | 07:56 | Calm | 16.09 | Overcast | BKN047 BKN100 OVC120 | 22.2 | 21.7 | 22.2 | 20.6 | 97% | 76.2 | 1016.7 | |||||
| 20 | 06:56 | Calm | 16.09 | Mostly Cloudy | SCT090 BKN120 | 21 | 0 | 0% | 76.2 | 1016.7 | |||||||
| 20 | 05:56 | Calm | 16.09 | Overcast | OVC050 | 21.1 | 21.1 | 100% | 76.17 | 1016.4 | |||||||
| 20 | 04:56 | Calm | 16.09 | Light Rain | BKN050 OVC090 | 22.2 | 20 | 87% | 76.15 | 1016.0 | |||||||
| 20 | 03:56 | Calm | 16.09 | Overcast | OVC055 | 21.7 | 21.1 | 96% | 76.17 | 1016.3 | |||||||
| 20 | 02:56 | Calm | 16.09 | Mostly Cloudy | BKN120 | 21.1 | 21.1 | 100% | 76.2 | 1016.5 | |||||||
| 20 | 01:56 | Calm | 16.09 | Fair | CLR | 21.1 | 21.1 | 25.6 | 20 | 100% | 76.2 | 1016.6 | |||||
| 20 | 00:56 | Calm | 16.09 | Fair | CLR | 20.6 | 20.6 | 100% | 76.2 | 1016.9 | |||||||
| 19 | 23:56 | Calm | 16.09 | A Few Clouds | FEW060 | 21.1 | 21.1 | 100% | 76.2 | 1016.7 | |||||||
| 19 | 22:56 | Calm | 16.09 | A Few Clouds | FEW060 | 21.7 | 21.7 | 100% | 76.15 | 1016.2 | |||||||
| 19 | 21:56 | Calm | 16.09 | Fair | CLR | 22.2 | 21.1 | 94% | 76.15 | 1015.9 | |||||||
| 19 | 20:56 | Calm | 16.09 | Fair | CLR | 23.3 | 20.6 | 85% | 76.12 | 1015.9 | |||||||
| 19 | 19:56 | Calm | 16.09 | Fair | CLR | 25.6 | 19.4 | 30.6 | 25.6 | 69% | 27 | 76.1 | 1015.6 | ||||
| 19 | 18:56 | W 6 | 16.09 | A Few Clouds | FEW050 | 28.3 | 20 | 61% | 30 | 76.1 | 1015.3 | ||||||
| 19 | 17:56 | W 11 | 16.09 | Partly Cloudy | SCT055 | 29.4 | 18.9 | 53% | 31 | 76.1 | 1015.3 | ||||||
| 19 | 15:56 | Vrbl 11 | 16.09 | Partly Cloudy | SCT055 | 30 | 18.3 | 49% | 31 | 76.07 | 1015.2 | ||||||
| 19 | 14:56 | Vrbl 11 | 16.09 | Partly Cloudy | SCT055 | 30 | 17.8 | 48% | 31 | 76.12 | 1015.5 | ||||||
| 19 | 13:56 | W 13 | 9.66 | Partly Cloudy with Haze | SCT050 SCT060 | 29.4 | 19.4 | 29.4 | 18.9 | 55% | 31 | 76.15 | 1015.9 | ||||
| 19 | 12:56 | W 15 | 16.09 | Fair | CLR | 28.9 | 18.3 | 53% | 30 | 76.15 | 1015.9 | ||||||
| 19 | 11:56 | NW 13 | 16.09 | Fair | CLR | 27.8 | 17.8 | 55% | 29 | 76.15 | 1016.1 | ||||||
| 19 | 10:56 | W 15 | 16.09 | Fair | CLR | 27.2 | 17.2 | 54% | 28 | 76.15 | 1015.9 | ||||||
| 19 | 09:56 | Calm | 16.09 | Fair | CLR | 25 | 18.3 | 66% | 26 | 76.12 | 1015.7 | ||||||
| 19 | 08:56 | Vrbl 6 | 16.09 | Fair | CLR | 22.2 | 18.9 | 82% | 76.12 | 1016.0 | |||||||
| 19 | 07:56 | Calm | 16.09 | Fair | CLR | 18 | 0 | 18.3 | 16.7 | 0% | 76.17 | 1016.5 | |||||
| 19 | 06:56 | Calm | 8.05 | Fair with Haze | CLR | 17 | 0 | 0% | 76.15 | 1016.2 | |||||||
| 19 | 05:56 | Calm | 9.66 | Fog/Mist | CLR | 16.7 | 16.7 | 100% | 76.1 | 1015.5 | |||||||
| 19 | 04:56 | Calm | 9.66 | Fair with Haze | CLR | 17 | 0 | 0% | 76.1 | 1015.4 | |||||||
| 19 | 03:56 | Calm | 6.44 | Fair with Haze | CLR | 18 | 0 | 0% | 76.07 | 1015.3 | |||||||
| 19 | 02:56 | Calm | 8.05 | Fair with Haze | CLR | 18 | 0 | 0% | 76.1 | 1015.3 | |||||||
| 19 | 01:56 | Calm | 14.48 | Fair | CLR | 18 | 0 | 24.4 | 18.3 | 0% | 76.1 | 1015.5 | |||||
| 19 | 00:56 | Calm | 16.09 | Fair | CLR | 19 | 0 | 0% | 76.1 | 1015.5 | |||||||
| 18 | 23:56 | Calm | 16.09 | Fair | CLR | 19 | 0 | 0% | 76.1 | 1015.5 | |||||||
| 18 | 22:56 | Calm | 16.09 | Fair | CLR | 20 | 20 | 100% | 76.1 | 1015.5 | |||||||
| 18 | 19:56 | Calm | 16.09 | Fair | CLR | 25 | 20 | 29.4 | 25 | 74% | 26 | 76.05 | 1014.6 | ||||
| 18 | 18:56 | Calm | 16.09 | Fair | CLR | 27.8 | 18.9 | 58% | 29 | 76.02 | 1014.4 | ||||||
| 18 | 17:56 | NW 9 | 16.09 | Partly Cloudy | SCT080 | 28.3 | 18.9 | 57% | 30 | 76.02 | 1014.3 | ||||||
| 18 | 16:56 | NW 13 | 16.09 | A Few Clouds | FEW080 | 28.9 | 19.4 | 57% | 30 | 76.02 | 1014.3 | ||||||
| 18 | 15:56 | NW 13 | 16.09 | Overcast | SCT036 SCT065 OVC090 | 27.8 | 20 | 63% | 29 | 76.02 | 1014.3 | ||||||
| 18 | 14:56 | NW 15 | 16.09 | Overcast | BKN060 OVC080 | 28.3 | 21.7 | 67% | 31 | 76.05 | 1014.7 | ||||||
| 18 | 13:56 | NW 11 | 16.09 | Overcast | FEW032 BKN050 OVC080 | 27.8 | 22.8 | 29.4 | 22.2 | 74% | 31 | 76.02 | 1014.4 | ||||
| 18 | 12:56 | Vrbl 7 | 16.09 | Mostly Cloudy | BKN065 BKN080 | 27.8 | 23.3 | 77% | 31 | 76.05 | 1014.6 | ||||||
| 18 | 11:56 | Vrbl 6 | 16.09 | Overcast | FEW019 OVC065 | 26.1 | 24.4 | 90% | 28 | 76.1 | 1015.2 | ||||||
| 18 | 10:56 | NW 7 | 16.09 | Overcast | SCT017 BKN024 OVC033 | 26.1 | 23.9 | 88% | 28 | 76.07 | 1015.1 | ||||||
| 18 | 09:56 | Vrbl 6 | 16.09 | Mostly Cloudy | FEW013 BKN095 | 25.6 | 23.9 | 90% | 27 | 76.05 | 1014.7 | ||||||
| 18 | 08:56 | Calm | 16.09 | Fair | CLR | 24.4 | 24.4 | 100% | 24 | 76.02 | 1014.4 | ||||||
| 18 | 07:56 | Calm | 16.09 | Fair | CLR | 22 | 0 | 22.2 | 20.6 | 0% | 76 | 1014.2 | |||||
| 18 | 06:56 | Calm | 14.48 | Fair | CLR | 21 | 0 | 0% | 75.97 | 1013.8 | |||||||
| 18 | 05:56 | Calm | 12.87 | Fair | CLR | 21 | 0 | 0% | 75.92 | 1013.1 | |||||||
| 18 | 04:56 | Calm | 16.09 | Fair | CLR | 21 | 0 | 0% | 75.9 | 1012.6 | |||||||
| 18 | 03:56 | Calm | 14.48 | Fair | CLR | 21 | 0 | 0% | 75.87 | 1012.3 | |||||||
| 18 | 02:56 | Calm | 12.87 | Fair | CLR | 22 | 0 | 0% | 75.87 | 1012.4 | |||||||
| 18 | 01:56 | Calm | 16.09 | Fair | CLR | 22 | 0 | 23.9 | 21.7 | 0% | 75.92 | 1012.8 | |||||
| 18 | 00:56 | Calm | 16.09 | Fair | CLR | 22 | 0 | 0% | 75.92 | 1013.0 | |||||||
| 17 | 23:56 | Calm | 16.09 | Fair | CLR | 22 | 0 | 0% | 75.92 | 1013.0 | |||||||
| 17 | 22:56 | Calm | 16.09 | Mostly Cloudy | BKN100 | 22 | 0 | 0% | 75.92 | 1013.0 | |||||||
| 17 | 21:56 | Calm | 16.09 | Fair | CLR | 23 | 0 | 0% | 75.92 | 1013.1 | |||||||
| 17 | 20:56 | W 11 | 16.09 | Fair | CLR | 23.3 | 23.3 | 100% | 75.87 | 1012.2 | |||||||
| 17 | 19:56 | W 9 | 16.09 | A Few Clouds | FEW120 | 24 | 0 | 32.8 | 23.9 | 0% | 75.82 | 1011.6 | 0.08 | ||||
| 17 | 18:56 | Calm | 16.09 | Fair | CLR | 24.4 | 24.4 | 100% | 24 | 75.84 | 1011.9 | 0.03 | |||||
| 17 | 17:56 | Vrbl 7 | 16.09 | Thunderstorm | BKN045 BKN055 OVC070 | 24.4 | 24.4 | 100% | 24 | 75.87 | 1012.5 | 0.05 | |||||
| 17 | 16:56 | W 11 | 16.09 | A Few Clouds | FEW048 | 30.6 | 23.3 | 65% | 35 | 75.82 | 1011.5 | ||||||
| 17 | 15:56 | Calm | 11.27 | Overcast | BKN044 BKN060 OVC085 | 31.1 | 23.9 | 66% | 37 | 75.82 | 1011.7 | ||||||
| 17 | 14:56 | Vrbl 11 | 16.09 | Mostly Cloudy | BKN040 BKN075 | 31.1 | 23.3 | 63% | 36 | 75.87 | 1012.2 | ||||||
| 17 | 13:56 | W 15 | 16.09 | Overcast | BKN039 OVC049 | 30.6 | 23.3 | 31.1 | 23.3 | 65% | 35 | 75.9 | 1012.7 | ||||
| 17 | 12:56 | W 15 | 16.09 | Mostly Cloudy | SCT034 BKN042 | 30.6 | 23.9 | 67% | 36 | 75.95 | 1013.3 | ||||||
| 17 | 11:56 | NW 13 | 16.09 | Mostly Cloudy | SCT028 BKN034 | 29.4 | 23.3 | 70% | 34 | 75.97 | 1013.8 | ||||||
| 17 | 10:56 | NW 13 | 16.09 | Partly Cloudy | SCT022 | 28.3 | 24.4 | 79% | 33 | 76 | 1013.9 | ||||||
| 17 | 09:56 | NW 13 | 16.09 | Partly Cloudy | FEW016 SCT065 | 26.7 | 25 | 90% | 30 | 75.97 | 1013.7 | ||||||
| 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) | |||||||||||||||