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. | ||||||||||||||||
| 18 | 18:56 | S 11 | 16.09 | Fair | CLR | 32.2 | 16.1 | 38% | 32 | 76.53 | 1021.0 | ||||||
| 18 | 17:56 | S 17 G 28 | 16.09 | Fair | CLR | 33.9 | 17.2 | 37% | 35 | 76.5 | 1020.6 | ||||||
| 18 | 16:56 | S 11 | 16.09 | A Few Clouds | FEW070 | 35 | 17.8 | 36% | 36 | 76.5 | 1020.8 | ||||||
| 18 | 15:56 | S 13 | 16.09 | Partly Cloudy | SCT075 | 36.1 | 17.2 | 33% | 37 | 76.58 | 1021.6 | ||||||
| 18 | 14:56 | SW 13 | 16.09 | Partly Cloudy | SCT070 | 35 | 17.2 | 35% | 36 | 76.61 | 1022.3 | ||||||
| 18 | 13:56 | W 11 | 16.09 | Fair | CLR | 33.9 | 18.3 | 33.9 | 21.7 | 40% | 35 | 76.63 | 1022.6 | ||||
| 18 | 12:56 | Calm | 16.09 | Fair | CLR | 32.8 | 17.2 | 39% | 33 | 76.66 | 1022.9 | ||||||
| 18 | 11:56 | Vrbl 6 | 16.09 | Fair | CLR | 32.2 | 18.9 | 45% | 34 | 76.71 | 1023.5 | ||||||
| 18 | 10:56 | SW 6 | 16.09 | Fair | CLR | 30 | 18.9 | 51% | 31 | 76.73 | 1023.7 | ||||||
| 18 | 09:56 | SW 6 | 16.09 | Fair | CLR | 27.8 | 18.9 | 58% | 29 | 76.73 | 1024.0 | ||||||
| 18 | 08:56 | SW 7 | 16.09 | Fair | CLR | 25.6 | 18.3 | 64% | 27 | 76.73 | 1023.9 | ||||||
| 18 | 07:56 | Calm | 16.09 | Fair | CLR | 21.7 | 20.6 | 21.7 | 16.7 | 94% | 76.71 | 1023.6 | |||||
| 18 | 06:56 | Calm | 16.09 | Fair | CLR | 17 | 0 | 0% | 76.68 | 1023.4 | |||||||
| 18 | 05:56 | Calm | 16.09 | Fair | CLR | 17 | 0 | 0% | 76.63 | 1022.6 | |||||||
| 18 | 04:56 | Calm | 16.09 | Fair | CLR | 17 | 0 | 0% | 76.61 | 1022.2 | |||||||
| 18 | 03:56 | Calm | 16.09 | Fair | CLR | 17.8 | 17.8 | 100% | 76.58 | 1021.9 | |||||||
| 18 | 02:56 | Calm | 16.09 | Fair | CLR | 18 | 0 | 0% | 76.58 | 1022.1 | |||||||
| 17 | 23:56 | SE 7 | 16.09 | Fair | CLR | 21.1 | 18.9 | 87% | 76.61 | 1022.1 | |||||||
| 17 | 22:56 | Calm | 16.09 | Fair | CLR | 21.7 | 18.9 | 84% | 76.58 | 1022.1 | |||||||
| 17 | 21:56 | SE 7 | 16.09 | Fair | CLR | 22.2 | 18.9 | 82% | 76.56 | 1021.7 | |||||||
| 17 | 20:56 | SE 6 | 16.09 | Fair | CLR | 23.3 | 18.3 | 74% | 76.53 | 1021.2 | |||||||
| 17 | 19:56 | S 6 | 16.09 | Fair | CLR | 27.2 | 17.2 | 30 | 26.1 | 54% | 28 | 76.48 | 1020.7 | ||||
| 17 | 18:56 | Calm | 16.09 | Fair | CLR | 27.2 | 17.2 | 54% | 28 | 76.48 | 1020.7 | ||||||
| 17 | 17:56 | W 9 | 16.09 | Fair | CLR | 30 | 16.7 | 45% | 30 | 76.48 | 1020.6 | ||||||
| 17 | 16:56 | W 13 G 26 | 16.09 | Fair | CLR | 29.4 | 16.7 | 46% | 30 | 76.48 | 1020.6 | ||||||
| 17 | 15:56 | W 13 | 16.09 | Fair | CLR | 29.4 | 16.7 | 46% | 30 | 76.5 | 1020.8 | ||||||
| 17 | 14:56 | NW 19 | 16.09 | A Few Clouds | FEW120 | 27.8 | 16.1 | 49% | 28 | 76.53 | 1021.4 | ||||||
| 17 | 13:56 | NW 11 | 16.09 | Mostly Cloudy | BKN080 | 26.1 | 17.8 | 26.7 | 18.9 | 60% | 27 | 76.58 | 1022.2 | ||||
| 17 | 12:56 | W 11 | 16.09 | Overcast | BKN090 OVC100 | 24.4 | 17.8 | 67% | 25 | 76.63 | 1022.8 | ||||||
| 17 | 11:56 | W 11 | 16.09 | Overcast | SCT055 OVC100 | 23.9 | 17.8 | 69% | 25 | 76.66 | 1023.0 | ||||||
| 17 | 10:56 | Vrbl 6 | 16.09 | Mostly Cloudy | BKN120 | 24.4 | 16.7 | 62% | 25 | 76.61 | 1022.3 | ||||||
| 17 | 09:56 | NW 6 | 16.09 | Fair | CLR | 23.3 | 17.8 | 71% | 76.61 | 1022.1 | |||||||
| 17 | 08:56 | NW 6 | 16.09 | Fair | CLR | 22.2 | 17.8 | 76% | 76.58 | 1021.9 | |||||||
| 17 | 07:56 | Calm | 16.09 | Fair | CLR | 18.9 | 18.9 | 18.9 | 14.4 | 100% | 76.53 | 1021.2 | |||||
| 17 | 06:56 | Calm | 16.09 | Fair | CLR | 15 | 0 | 0% | 76.43 | 1020.0 | |||||||
| 17 | 05:56 | Calm | 16.09 | Fair | CLR | 15 | 0 | 0% | 76.35 | 1019.1 | |||||||
| 17 | 04:56 | Calm | 16.09 | Fair | CLR | 15 | 0 | 0% | 76.35 | 1019.0 | |||||||
| 17 | 03:56 | Calm | 16.09 | Fair | CLR | 16 | 0 | 0% | 76.3 | 1018.4 | |||||||
| 17 | 02:56 | Calm | 16.09 | Fair | CLR | 16.1 | 16.1 | 100% | 76.3 | 1018.4 | |||||||
| 17 | 01:56 | Calm | 9.66 | Fog/Mist | CLR | 17.2 | 17.2 | 23.3 | 17.2 | 100% | 76.28 | 1018.1 | |||||
| 17 | 00:56 | Calm | 16.09 | Partly Cloudy | SCT060 | 18.3 | 16.7 | 90% | 76.28 | 1017.9 | |||||||
| 16 | 23:56 | Calm | 16.09 | Mostly Cloudy | BKN060 | 18.9 | 16.7 | 87% | 76.28 | 1017.9 | |||||||
| 16 | 22:56 | Calm | 16.09 | Fair | CLR | 19.4 | 15.6 | 79% | 76.23 | 1017.4 | |||||||
| 16 | 21:56 | W 7 | 16.09 | Fair | CLR | 21.7 | 15 | 66% | 76.23 | 1017.2 | |||||||
| 16 | 20:56 | W 6 | 16.09 | Overcast | OVC100 | 22.8 | 15 | 62% | 76.2 | 1016.9 | |||||||
| 16 | 19:56 | W 13 | 16.09 | Overcast | BKN075 OVC090 | 23.3 | 13.9 | 29.4 | 23.3 | 56% | 76.2 | 1016.9 | |||||
| 16 | 18:56 | W 17 | 16.09 | Mostly Cloudy | BKN100 | 25 | 13.9 | 50% | 26 | 76.2 | 1017.0 | ||||||
| 16 | 17:56 | W 13 | 16.09 | Overcast | OVC075 | 26.7 | 11.7 | 39% | 27 | 76.25 | 1017.6 | ||||||
| 16 | 16:56 | S 15 | 16.09 | Partly Cloudy | SCT085 | 28.3 | 11.1 | 34% | 28 | 76.23 | 1017.1 | ||||||
| 16 | 15:56 | S 13 | 16.09 | Mostly Cloudy | FEW070 BKN090 | 28.3 | 10 | 32% | 27 | 76.25 | 1017.6 | ||||||
| 16 | 14:56 | SW 13 | 16.09 | A Few Clouds | FEW080 | 28.3 | 9.4 | 31% | 27 | 76.3 | 1018.1 | ||||||
| 16 | 13:56 | SW 15 | 16.09 | Fair | CLR | 27.2 | 7.2 | 27.2 | 16.1 | 28% | 26 | 76.35 | 1019.1 | ||||
| 16 | 12:56 | Vrbl 11 | 16.09 | Fair | CLR | 26.1 | 9.4 | 35% | 26 | 76.4 | 1019.7 | ||||||
| 16 | 11:56 | SW 11 | 16.09 | Fair | CLR | 25 | 9.4 | 37% | 26 | 76.45 | 1020.3 | ||||||
| 16 | 10:56 | S 9 | 16.09 | Fair | CLR | 22.2 | 10.6 | 48% | 76.5 | 1021.2 | |||||||
| 16 | 09:56 | S 9 | 16.09 | Fair | CLR | 20.6 | 10 | 51% | 76.53 | 1021.6 | |||||||
| 16 | 08:56 | S 9 | 16.09 | Fair | CLR | 18.3 | 9.4 | 56% | 76.56 | 1021.7 | |||||||
| 16 | 07:56 | S 6 | 16.09 | Fair | CLR | 16.1 | 10 | 16.1 | 8.3 | 67% | 76.56 | 1021.9 | |||||
| 16 | 06:56 | Calm | 16.09 | Fair | CLR | 9 | 0 | 0% | 76.53 | 1021.6 | |||||||
| 16 | 05:56 | Calm | 16.09 | Fair | CLR | 8 | 0 | 0% | 76.5 | 1021.2 | |||||||
| 16 | 04:56 | Calm | 16.09 | Fair | CLR | 9.4 | 9.4 | 100% | 76.45 | 1020.7 | |||||||
| 16 | 03:56 | Calm | 16.09 | Fair | CLR | 10 | 10 | 100% | 76.45 | 1020.5 | |||||||
| 16 | 02:56 | Calm | 16.09 | Fair | CLR | 9.4 | 9.4 | 100% | 76.45 | 1020.5 | |||||||
| 16 | 01:56 | Calm | 16.09 | Fair | CLR | 10.6 | 10.6 | 18.9 | 10 | 100% | 76.45 | 1020.7 | |||||
| 16 | 00:56 | Calm | 16.09 | Fair | CLR | 11.1 | 10 | 93% | 76.45 | 1020.5 | |||||||
| 15 | 23:56 | Calm | 16.09 | Fair | CLR | 11.7 | 10.6 | 93% | 76.43 | 1020.3 | |||||||
| 15 | 22:56 | Calm | 16.09 | Fair | CLR | 12.8 | 8.9 | 77% | 76.43 | 1020.2 | |||||||
| 15 | 21:56 | Calm | 16.09 | Fair | CLR | 13.3 | 10 | 81% | 76.4 | 1019.9 | |||||||
| 15 | 20:56 | Calm | 16.09 | Fair | CLR | 15.6 | 7.8 | 60% | 76.33 | 1018.9 | |||||||
| 15 | 19:56 | Calm | 16.09 | Fair | CLR | 18.3 | 7.2 | 21.7 | 18.3 | 49% | 76.28 | 1018.3 | |||||
| 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) | |||||||||||||||