Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| Date | Time (est) | 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. | ||||||||||||||||
| 28 | 14:56 | Calm | 16.09 | Fair | CLR | -5 | -15 | 46% | 76.38 | 1020.6 | |||||||
| 28 | 13:56 | W 13 | 16.09 | A Few Clouds | FEW043 | -5 | -14.4 | 48% | -10 | 76.43 | 1021.2 | ||||||
| 28 | 12:56 | W 17 | 16.09 | Fair | CLR | -5.6 | -15 | -2.8 | -13.3 | 48% | -11 | 76.53 | 1022.6 | ||||
| 28 | 10:56 | NW 17 | 16.09 | Fair | CLR | -5 | -15.6 | 44% | -10 | 76.71 | 1025.2 | ||||||
| 28 | 09:56 | NW 9 | 16.09 | Fair | CLR | -6.1 | -16.1 | 45% | -10 | 76.76 | 1025.9 | ||||||
| 28 | 08:56 | Vrbl 6 | 16.09 | Fair | CLR | -7.2 | -15 | 54% | 76.81 | 1026.6 | |||||||
| 28 | 07:56 | Calm | 16.09 | Fair | CLR | -12.8 | -18.9 | 61% | 76.81 | 1026.7 | |||||||
| 28 | 06:56 | Calm | 16.09 | Fair | CLR | -12.2 | -18.9 | -8.3 | -12.2 | 58% | 76.78 | 1026.2 | |||||
| 28 | 05:56 | NW 6 | 16.09 | Fair | CLR | -11.7 | -18.9 | 56% | 76.78 | 1026.1 | |||||||
| 28 | 04:56 | W 13 | 16.09 | Fair | CLR | -11.1 | -18.9 | 53% | -17 | 76.78 | 1026.1 | ||||||
| 28 | 03:56 | NW 11 | 16.09 | Fair | CLR | -10 | -18.3 | 51% | -15 | 76.78 | 1026.0 | ||||||
| 28 | 02:56 | NW 30 G 39 | 16.09 | Fair | CLR | -9.4 | -17.8 | 51% | -18 | 76.71 | 1025.0 | ||||||
| 28 | 01:56 | NW 17 | 16.09 | Fair | CLR | -9.4 | -17.2 | 53% | -16 | 76.68 | 1024.9 | ||||||
| 28 | 00:56 | NW 24 | 16.09 | Fair | CLR | -8.3 | -16.1 | -5 | -8.3 | 54% | -16 | 76.61 | 1023.5 | ||||
| 27 | 23:56 | NW 24 G 31 | 16.09 | Mostly Cloudy | BKN060 | -7.8 | -16.1 | 52% | -15 | 76.58 | 1023.4 | ||||||
| 27 | 22:56 | Vrbl 7 | 16.09 | Partly Cloudy | FEW050 SCT060 | -7.2 | -15 | 54% | -10 | 76.56 | 1023.1 | ||||||
| 27 | 21:56 | NW 13 G 39 | 16.09 | Overcast | BKN047 OVC060 | -6.1 | -13.9 | 54% | -11 | 76.53 | 1022.6 | ||||||
| 27 | 20:56 | NW 13 | 16.09 | Overcast | SCT048 OVC060 | -5.6 | -13.3 | 55% | -10 | 76.48 | 1022.1 | ||||||
| 27 | 19:56 | NW 19 G 37 | 16.09 | Fair | CLR | -5.6 | -13.9 | 52% | -12 | 76.38 | 1020.8 | ||||||
| 27 | 18:56 | NW 7 | 16.09 | Fair | CLR | -5 | -15 | -1.7 | -5.6 | 46% | -8 | 76.3 | 1019.8 | ||||
| 27 | 17:56 | NW 7 | 16.09 | Overcast | OVC060 | -4.4 | -15 | 44% | -7 | 76.2 | 1018.2 | ||||||
| 27 | 16:56 | W 9 | 16.09 | Overcast | OVC070 | -3.3 | -15 | 40% | -7 | 76.17 | 1017.7 | ||||||
| 27 | 15:56 | W 11 | 16.09 | Overcast | BKN065 OVC110 | -2.8 | -15.6 | 37% | -7 | 76.15 | 1017.6 | ||||||
| 27 | 14:56 | SW 15 | 16.09 | Mostly Cloudy | BKN110 | -2.2 | -16.1 | 34% | -7 | 76.15 | 1017.5 | ||||||
| 27 | 13:56 | Vrbl 11 | 16.09 | Overcast | OVC120 | -2.8 | -16.1 | 35% | -7 | 76.2 | 1018.3 | ||||||
| 27 | 12:56 | SW 15 | 16.09 | Mostly Cloudy | BKN120 | -1.7 | -17.2 | -1.1 | -12.8 | 30% | -6 | 76.3 | 1019.5 | ||||
| 27 | 11:56 | SW 15 | 16.09 | Partly Cloudy | SCT120 | -2.2 | -16.1 | 34% | -7 | 76.45 | 1021.4 | ||||||
| 27 | 10:56 | SW 11 | 16.09 | Fair | CLR | -2.8 | -15.6 | 37% | -7 | 76.56 | 1023.0 | ||||||
| 27 | 09:56 | SW 7 | 16.09 | Fair | CLR | -3.9 | -14.4 | 44% | -7 | 76.61 | 1023.9 | ||||||
| 27 | 08:56 | Vrbl 7 | 16.09 | Fair | CLR | -7.8 | -16.1 | 52% | -11 | 76.66 | 1024.4 | ||||||
| 27 | 07:56 | W 7 | 16.09 | Fair | CLR | -12.8 | -19.4 | 58% | -17 | 76.71 | 1025.1 | ||||||
| 27 | 06:56 | W 13 | 16.09 | Fair | CLR | -12.2 | -19.4 | -9.4 | -12.8 | 55% | -18 | 76.71 | 1025.2 | ||||
| 27 | 05:56 | W 17 G 35 | 16.09 | Fair | CLR | -11.7 | -18.3 | 58% | -19 | 76.73 | 1025.5 | ||||||
| 27 | 04:56 | W 19 | 16.09 | Fair | CLR | -11.7 | -17.2 | 64% | -19 | 76.71 | 1025.1 | ||||||
| 27 | 03:56 | W 15 | 16.09 | Fair | CLR | -11.7 | -17.2 | 64% | -18 | 76.68 | 1024.8 | ||||||
| 27 | 02:56 | SW 7 | 16.09 | Fair | CLR | -12.8 | -18.9 | 61% | -17 | 76.68 | 1024.7 | ||||||
| 27 | 01:56 | W 6 | 16.09 | Fair | CLR | -11.7 | -17.8 | 61% | 76.66 | 1024.4 | |||||||
| 27 | 00:56 | NW 19 | 16.09 | Fair | CLR | -9.4 | -16.7 | -7.8 | -9.4 | 56% | -16 | 76.63 | 1024.2 | ||||
| 26 | 23:56 | W 31 G 46 | 16.09 | Fair | CLR | -8.9 | -16.1 | 56% | -18 | 76.58 | 1023.4 | ||||||
| 26 | 22:56 | NW 24 | 16.09 | Partly Cloudy | SCT048 | -8.3 | -16.1 | 54% | -16 | 76.53 | 1022.9 | ||||||
| 26 | 21:56 | W 20 G 30 | 16.09 | Mostly Cloudy | BKN048 | -8.3 | -15.6 | 56% | -15 | 76.5 | 1022.4 | ||||||
| 26 | 20:56 | W 26 G 31 | 16.09 | A Few Clouds | FEW048 | -7.8 | -15 | 57% | -16 | 76.45 | 1021.7 | ||||||
| 26 | 19:56 | NW 13 | 16.09 | Fair | CLR | -7.8 | -15.6 | 54% | -13 | 76.4 | 1021.0 | ||||||
| 26 | 18:56 | NW 22 | 16.09 | Fair | CLR | -7.8 | -15.6 | -2.8 | -7.8 | 54% | -15 | 76.35 | 1020.4 | ||||
| 26 | 17:56 | NW 35 G 43 | 16.09 | Fair and Breezy | CLR | -7.2 | -15 | 54% | -16 | 76.25 | 1018.7 | ||||||
| 26 | 16:56 | NW 24 G 37 | 16.09 | Mostly Cloudy | BKN050 | -5.6 | -14.4 | 50% | -12 | 76.17 | 1018.0 | ||||||
| 26 | 15:56 | NW 20 G 43 | 16.09 | Partly Cloudy | SCT048 | -4.4 | -13.3 | 50% | -10 | 76.1 | 1016.8 | ||||||
| 26 | 14:56 | NW 30 | 16.09 | Mostly Cloudy | BKN046 | -3.9 | -12.8 | 50% | -11 | 76.02 | 1015.9 | ||||||
| 26 | 13:56 | NW 31 G 41 | 16.09 | A Few Clouds | FEW043 | -3.3 | -12.2 | 51% | -10 | 75.97 | 1015.3 | ||||||
| 26 | 12:56 | NW 35 G 54 | 16.09 | Fair and Breezy | CLR | -3.3 | -11.7 | -2.8 | -8.9 | 53% | -11 | 75.97 | 1015.1 | ||||
| 26 | 11:56 | NW 30 G 39 | 16.09 | Overcast | OVC120 | -3.3 | -11.1 | 55% | -10 | 75.95 | 1015.0 | ||||||
| 26 | 09:56 | NW 26 G 46 | 16.09 | Mostly Cloudy | BKN100 | -4.4 | -9.4 | 68% | -11 | 75.97 | 1015.1 | ||||||
| 26 | 08:56 | NW 19 G 31 | 16.09 | Mostly Cloudy | BKN110 | -5 | -7.2 | 85% | -11 | 75.97 | 1015.1 | ||||||
| 26 | 07:56 | W 6 | 16.09 | Overcast | FEW040 OVC095 | -7.8 | -8.9 | 92% | 75.9 | 1014.2 | |||||||
| 26 | 06:56 | Calm | 16.09 | Overcast | OVC034 | -8.9 | -10 | -8.9 | -10.6 | 92% | 75.87 | 1013.8 | |||||
| 26 | 05:56 | NW 7 | 16.09 | Overcast | SCT028 BKN034 OVC090 | -8.9 | -10 | 92% | -12 | 75.79 | 1012.9 | ||||||
| 26 | 04:56 | Calm | 14.48 | Overcast | BKN006 OVC095 | -10.6 | -11.7 | 92% | 75.74 | 1012.0 | |||||||
| 26 | 03:56 | Calm | 12.87 | Overcast | OVC006 | -10 | -11.1 | 92% | 75.64 | 1011.0 | |||||||
| 26 | 02:56 | Calm | 16.09 | Overcast | OVC006 | -10 | -11.1 | 92% | 75.67 | 1011.2 | |||||||
| 26 | 01:56 | Vrbl 6 | 16.09 | Overcast | OVC006 | -9.4 | -10.6 | 91% | 75.64 | 1010.9 | |||||||
| 26 | 00:56 | NW 11 | 16.09 | Overcast | OVC008 | -8.9 | -10.6 | -8.3 | -9.4 | 88% | -14 | 75.64 | 1010.9 | 0.08 | |||
| 25 | 23:56 | W 6 | 16.09 | Overcast | OVC008 | -8.9 | -10.6 | 88% | 75.67 | 1011.2 | |||||||
| 25 | 22:56 | Vrbl 6 | 16.09 | Overcast | OVC008 | -8.9 | -10.6 | 88% | 75.64 | 1010.7 | |||||||
| 25 | 21:56 | NW 7 | 16.09 | Overcast | OVC010 | -9.4 | -10.6 | 91% | -13 | 75.72 | 1011.8 | 0.08 | |||||
| 25 | 20:56 | Vrbl 9 | 16.09 | Overcast | OVC010 | -8.9 | -10.6 | 88% | -13 | 75.67 | 1011.4 | ||||||
| 25 | 19:56 | NW 13 | 16.09 | Overcast | OVC010 | -8.3 | -9.4 | 92% | -14 | 75.59 | 1010.1 | 0.08 | |||||
| 25 | 18:56 | Vrbl 6 | 9.66 | Light Snow Fog/Mist | OVC012 | -8.9 | -10 | -6.7 | -8.9 | 92% | 75.62 | 1010.5 | 0.15 | 1.17 | |||
| 25 | 17:56 | NW 7 | 2.82 | Light Snow Fog/Mist | OVC014 | -8.3 | -10 | 88% | -12 | 75.72 | 1012.1 | 0.18 | |||||
| 25 | 16:56 | NW 13 | 2.41 | Light Snow Fog/Mist | OVC012 | -7.2 | -8.9 | 88% | -12 | 75.79 | 1013.0 | 0.13 | |||||
| 25 | 15:56 | Calm | 2.01 | Light Snow Fog/Mist | OVC014 | -6.7 | -7.8 | 92% | 75.84 | 1013.6 | 0.23 | 0.71 | |||||
| Date | Time (est) | 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) | |||||||||||||||