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. | ||||||||||||||||
| 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 | |||||
| 15 | 18:56 | Calm | 16.09 | Fair | CLR | 20 | 7.2 | 44% | 76.25 | 1017.7 | |||||||
| 15 | 17:56 | NW 7 | 16.09 | Fair | CLR | 21.1 | 7.2 | 41% | 76.23 | 1017.4 | |||||||
| 15 | 16:56 | W 17 | 16.09 | A Few Clouds | FEW060 | 21.1 | 7.2 | 41% | 76.2 | 1017.2 | |||||||
| 15 | 15:56 | W 9 G 26 | 16.09 | Fair | CLR | 20.6 | 6.7 | 41% | 76.2 | 1017.0 | |||||||
| 15 | 14:56 | W 13 | 16.09 | Partly Cloudy | SCT055 | 20 | 6.7 | 42% | 76.25 | 1017.8 | |||||||
| 15 | 13:56 | NW 24 G 35 | 16.09 | A Few Clouds | FEW050 | 18.9 | 6.7 | 18.9 | 12.2 | 45% | 76.25 | 1017.8 | |||||
| 15 | 12:56 | NW 17 G 31 | 16.09 | Mostly Cloudy | BKN046 | 18.3 | 6.7 | 47% | 76.25 | 1017.9 | |||||||
| 15 | 11:56 | NW 15 | 16.09 | Partly Cloudy | SCT046 | 17.2 | 6.1 | 48% | 76.23 | 1017.4 | |||||||
| 15 | 10:56 | NW 19 | 16.09 | Partly Cloudy | SCT044 | 16.1 | 5.6 | 50% | 76.23 | 1017.5 | |||||||
| 15 | 09:56 | Vrbl 11 | 16.09 | Fair | CLR | 15 | 5.6 | 54% | 76.2 | 1017.3 | |||||||
| 15 | 08:56 | NW 19 G 30 | 16.09 | Overcast | OVC037 | 13.9 | 5.6 | 58% | 76.23 | 1017.7 | |||||||
| 15 | 07:56 | NW 19 G 28 | 16.09 | Mostly Cloudy | BKN042 BKN080 | 12.2 | 5.6 | 12.2 | 10 | 64% | 76.17 | 1017.0 | |||||
| 15 | 06:56 | NW 7 | 16.09 | Overcast | BKN040 OVC080 | 10.6 | 5.6 | 71% | 76.12 | 1016.2 | |||||||
| 15 | 05:56 | NW 9 | 16.09 | Overcast | OVC085 | 10.6 | 5.6 | 71% | 76.02 | 1014.9 | |||||||
| 15 | 04:56 | Vrbl 9 | 16.09 | Overcast | OVC065 | 10.6 | 5.6 | 71% | 75.97 | 1014.3 | |||||||
| 15 | 03:56 | NW 13 | 16.09 | Overcast | FEW030 OVC037 | 10.6 | 6.1 | 74% | 75.97 | 1014.2 | |||||||
| 15 | 02:56 | NW 13 | 16.09 | Overcast | OVC034 | 10.6 | 6.1 | 74% | 75.97 | 1014.1 | |||||||
| 15 | 01:56 | NW 7 | 16.09 | Overcast | BKN038 OVC090 | 10 | 6.1 | 12.2 | 10 | 77% | 9 | 75.97 | 1014.4 | ||||
| 15 | 00:56 | NW 11 | 16.09 | Overcast | BKN038 OVC110 | 10 | 6.1 | 77% | 9 | 76 | 1014.7 | ||||||
| 14 | 23:56 | NW 13 | 16.09 | Overcast | BKN040 OVC110 | 10 | 5.6 | 74% | 8 | 76 | 1014.6 | ||||||
| 14 | 22:56 | NW 11 | 16.09 | Overcast | OVC034 | 10.6 | 5 | 69% | 76 | 1014.7 | |||||||
| 14 | 21:56 | W 20 G 28 | 16.09 | Overcast | OVC036 | 11.1 | 5 | 66% | 76 | 1014.6 | |||||||
| 14 | 20:56 | NW 13 | 16.09 | Overcast | OVC044 | 11.7 | 5 | 64% | 75.95 | 1013.8 | |||||||
| 14 | 19:56 | NW 17 G 28 | 16.09 | Overcast | OVC050 | 12.2 | 4.4 | 16.1 | 12.2 | 59% | 75.92 | 1013.4 | |||||
| 14 | 18:56 | NW 15 | 16.09 | Overcast | OVC050 | 12.8 | 4.4 | 57% | 75.87 | 1012.7 | |||||||
| 14 | 17:56 | NW 17 G 35 | 16.09 | Overcast | FEW049 BKN060 OVC075 | 13.3 | 5 | 57% | 75.84 | 1012.5 | |||||||
| 14 | 16:56 | NW 19 G 30 | 16.09 | Overcast | OVC055 | 13.9 | 4.4 | 53% | 75.82 | 1012.2 | |||||||
| 14 | 15:56 | NW 19 G 28 | 16.09 | Overcast | BKN049 OVC060 | 13.9 | 4.4 | 53% | 75.82 | 1012.2 | |||||||
| 14 | 14:56 | W 17 G 28 | 16.09 | Overcast | OVC050 | 15 | 5.6 | 54% | 75.82 | 1012.2 | |||||||
| 14 | 13:56 | W 22 G 35 | 16.09 | Overcast | OVC047 | 13.9 | 4.4 | 16.1 | 11.1 | 53% | 75.82 | 1012.3 | |||||
| 14 | 12:56 | NW 20 G 33 | 16.09 | Overcast | BKN040 OVC050 | 13.3 | 5.6 | 60% | 75.84 | 1012.5 | |||||||
| 14 | 11:56 | NW 19 G 39 | 16.09 | Mostly Cloudy | BKN043 | 15.6 | 5 | 50% | 75.84 | 1012.3 | |||||||
| 14 | 10:56 | NW 31 G 39 | 16.09 | Mostly Cloudy | BKN037 | 15 | 6.1 | 56% | 75.84 | 1012.2 | |||||||
| 14 | 09:56 | NW 15 G 33 | 16.09 | Fair | CLR | 13.9 | 6.1 | 60% | 75.84 | 1012.5 | |||||||
| 14 | 08:56 | Vrbl 11 | 16.09 | Fair | CLR | 12.8 | 7.8 | 72% | 75.84 | 1012.5 | |||||||
| 14 | 07:56 | NW 9 | 16.09 | Overcast | SCT070 OVC085 | 11.1 | 11.1 | 11.1 | 10 | 100% | 75.82 | 1011.9 | 0.03 | ||||
| 14 | 06:56 | NW 9 | 16.09 | Overcast | BKN055 OVC070 | 11 | 0 | 0% | 75.77 | 1011.3 | |||||||
| 14 | 05:56 | Calm | 16.09 | Mostly Cloudy | SCT050 BKN070 BKN110 | 11 | 0 | 0% | 75.69 | 1010.5 | |||||||
| 14 | 04:56 | Calm | 16.09 | Overcast | BKN050 BKN060 OVC075 | 11 | 0 | 0% | 75.69 | 1010.5 | 0.03 | 0.03 | |||||
| 14 | 02:56 | Calm | 14.48 | Overcast | FEW001 SCT070 OVC110 | 11 | 0 | 0% | 75.69 | 1010.4 | |||||||
| 14 | 01:56 | Calm | 4.02 | Fog/Mist | FEW005 BKN085 OVC120 | 11 | 0 | 18.3 | 11.1 | 0% | 75.72 | 1010.8 | 0.81 | ||||
| 14 | 00:56 | Calm | 8.05 | Overcast with Haze | OVC100 | 12 | 0 | 0% | 75.77 | 1011.2 | |||||||
| 13 | 23:56 | Calm | 12.87 | Mostly Cloudy | BKN100 | 12 | 0 | 0% | 75.77 | 1011.4 | |||||||
| 13 | 22:56 | Calm | 16.09 | Mostly Cloudy | BKN110 | 13 | 0 | 0% | 75.77 | 1011.3 | 0.05 | 0.81 | |||||
| 13 | 21:56 | S 9 | 16.09 | Light Rain | BKN075 OVC090 | 13 | 0 | 0% | 75.77 | 1011.4 | 0.28 | ||||||
| 13 | 20:56 | NW 7 | 12.87 | Thunderstorm in Vicinity Rain | FEW045 BKN060 OVC075 | 12.8 | 12.8 | 100% | 75.79 | 1011.8 | 0.48 | ||||||
| 13 | 19:56 | S 7 | 16.09 | A Few Clouds | FEW120 | 18.3 | 11.7 | 23.9 | 18.3 | 66% | 75.67 | 1010.1 | |||||
| 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) | |||||||||||||||