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. | ||||||||||||||||
| 09 | 16:56 | SW 11 | 16.09 | Fair | CLR | 23.9 | 5 | 29% | 25 | 76.15 | 1016.5 | ||||||
| 09 | 15:56 | SW 17 G 26 | 16.09 | Fair | CLR | 23.9 | 5 | 29% | 25 | 76.17 | 1017.0 | ||||||
| 09 | 14:56 | SW 15 | 16.09 | Fair | CLR | 23.9 | 5.6 | 31% | 25 | 76.2 | 1017.1 | ||||||
| 09 | 13:56 | S 15 G 28 | 16.09 | Fair | CLR | 23.3 | 3.9 | 23.3 | 4.4 | 28% | 76.25 | 1017.7 | |||||
| 09 | 12:56 | S 19 | 16.09 | Fair | CLR | 22.8 | 3.9 | 29% | 76.35 | 1019.2 | |||||||
| 09 | 11:56 | Vrbl 7 | 16.09 | Fair | CLR | 21.1 | 3.9 | 32% | 76.43 | 1020.0 | |||||||
| 09 | 10:56 | Vrbl 6 | 16.09 | Fair | CLR | 18.9 | 3.9 | 37% | 76.45 | 1020.5 | |||||||
| 09 | 09:56 | W 6 | 16.09 | Fair | CLR | 14.4 | 3.9 | 50% | 76.5 | 1021.3 | |||||||
| 09 | 07:56 | Calm | 16.09 | Fair | CLR | 4.4 | 3.3 | 10.6 | 4.4 | 93% | 76.38 | 1019.7 | |||||
| 09 | 06:56 | Calm | 16.09 | Fair | CLR | 5 | 2.8 | 86% | 76.3 | 1018.7 | |||||||
| 09 | 05:56 | SE 6 | 16.09 | Fair | CLR | 6.1 | 2.2 | 76% | 76.25 | 1017.8 | |||||||
| 09 | 04:56 | Calm | 16.09 | Fair | CLR | 6.1 | 1.7 | 74% | 76.2 | 1017.2 | |||||||
| 09 | 03:56 | Calm | 16.09 | Fair | CLR | 7.8 | 1.7 | 66% | 76.17 | 1016.8 | |||||||
| 09 | 02:56 | Calm | 16.09 | Fair | CLR | 7.8 | 2.2 | 68% | 76.2 | 1017.1 | |||||||
| 09 | 01:56 | Calm | 16.09 | Fair | CLR | 8.9 | 1.1 | 17.2 | 7.2 | 58% | 76.23 | 1017.4 | |||||
| 09 | 00:56 | Calm | 16.09 | Fair | CLR | 9.4 | 1.1 | 56% | 76.2 | 1017.2 | |||||||
| 08 | 23:56 | Calm | 16.09 | Fair | CLR | 8.9 | 3.3 | 68% | 76.2 | 1017.1 | |||||||
| 08 | 22:56 | Calm | 16.09 | Fair | CLR | 10 | 3.3 | 63% | 76.17 | 1016.8 | |||||||
| 08 | 21:56 | SE 9 | 16.09 | Fair | CLR | 11.1 | 4.4 | 64% | 76.12 | 1016.1 | |||||||
| 08 | 20:56 | Calm | 16.09 | Fair | CLR | 12.2 | 6.7 | 69% | 76.05 | 1015.2 | |||||||
| 08 | 19:56 | NW 9 | 16.09 | Fair | CLR | 16.7 | 5 | 22.2 | 16.7 | 46% | 76.02 | 1014.7 | |||||
| 08 | 18:56 | NW 11 | 16.09 | Fair | CLR | 19.4 | 7.2 | 45% | 75.97 | 1014.0 | |||||||
| 08 | 17:56 | W 17 | 16.09 | Fair | CLR | 20.6 | 7.2 | 42% | 75.9 | 1013.1 | |||||||
| 08 | 16:56 | W 19 | 16.09 | A Few Clouds | FEW060 | 21.7 | 7.8 | 41% | 75.87 | 1012.9 | |||||||
| 08 | 15:56 | W 26 | 16.09 | Fair | CLR | 21.7 | 9.4 | 46% | 75.84 | 1012.5 | |||||||
| 08 | 14:56 | W 24 | 16.09 | A Few Clouds | FEW060 | 21.7 | 12.2 | 55% | 75.82 | 1012.1 | |||||||
| 08 | 13:56 | W 11 | 16.09 | Mostly Cloudy | SCT045 BKN055 | 21.1 | 12.8 | 21.1 | 13.3 | 59% | 75.82 | 1012.2 | |||||
| 08 | 12:56 | W 13 | 16.09 | Mostly Cloudy | BKN037 | 21.1 | 13.3 | 61% | 75.87 | 1012.6 | |||||||
| 08 | 11:56 | SW 9 | 16.09 | A Few Clouds | FEW047 | 21.1 | 14.4 | 66% | 75.9 | 1013.2 | |||||||
| 08 | 10:56 | W 9 | 16.09 | A Few Clouds | FEW044 | 19.4 | 15 | 76% | 75.92 | 1013.3 | |||||||
| 08 | 09:56 | Calm | 16.09 | Fair | CLR | 17 | 0 | 0% | 75.9 | 1012.9 | |||||||
| 08 | 08:56 | Calm | 14.48 | Overcast | SCT060 OVC095 | 14 | 0 | 0% | 75.9 | 1012.9 | |||||||
| 08 | 07:56 | Calm | 2.82 | Fog/Mist | OVC100 | 13 | 0 | 15 | 10.6 | 0% | 75.84 | 1012.4 | |||||
| 08 | 06:56 | Calm | 9.66 | Overcast with Haze | BKN090 OVC100 | 13 | 0 | 0% | 75.82 | 1011.9 | |||||||
| 08 | 05:56 | SW 6 | 9.66 | Overcast with Haze | OVC080 | 13 | 0 | 0% | 75.82 | 1012.2 | |||||||
| 08 | 04:56 | Calm | 4.83 | Fog/Mist | SCT095 | 12 | 0 | 0% | 75.77 | 1011.5 | |||||||
| 08 | 03:56 | Calm | 2.41 | Fog/Mist | CLR | 12 | 0 | 0% | 75.74 | 1011.3 | |||||||
| 08 | 01:56 | SE 6 | 3.22 | Fog/Mist | CLR | 12 | 0 | 0% | 75.79 | 1011.9 | |||||||
| 08 | 00:56 | SE 7 | 11.27 | Partly Cloudy | SCT080 | 12 | 0 | 15 | 11.7 | 0% | 75.84 | 1012.5 | 0.05 | ||||
| 07 | 23:56 | SE 6 | 9.66 | Light Rain | BKN110 | 12 | 0 | 0% | 75.9 | 1013.4 | 0.05 | ||||||
| 07 | 22:56 | E 6 | 12.87 | Mostly Cloudy | SCT032 SCT045 BKN055 | 12 | 0 | 0% | 76 | 1014.6 | |||||||
| 07 | 21:56 | Calm | 16.09 | Fair | CLR | 13 | 0 | 0% | 75.97 | 1014.4 | |||||||
| 07 | 20:56 | SE 9 | 16.09 | Fair | CLR | 15 | 15 | 100% | 75.9 | 1013.4 | |||||||
| 07 | 19:56 | SE 11 | 16.09 | Fair | CLR | 14.4 | 14.4 | 100% | 75.95 | 1013.8 | |||||||
| 07 | 18:56 | SE 11 | 16.09 | Fair | CLR | 14.4 | 14.4 | 15 | 9.4 | 100% | 76.02 | 1014.8 | |||||
| 07 | 17:56 | SE 11 | 16.09 | Fair | CLR | 14.4 | 12.8 | 90% | 76.07 | 1015.4 | |||||||
| 07 | 16:56 | SE 11 | 16.09 | Fair | CLR | 13.9 | 12.2 | 90% | 76.1 | 1016.0 | |||||||
| 07 | 15:56 | SE 13 | 14.48 | Overcast | OVC008 | 11.7 | 11.7 | 100% | 76.15 | 1016.8 | |||||||
| 07 | 14:56 | SE 15 | 11.27 | Overcast | OVC006 | 11.1 | 11.1 | 100% | 76.28 | 1018.4 | |||||||
| 07 | 13:56 | SE 9 | 11.27 | Overcast | OVC006 | 10 | 10 | 100% | 9 | 76.38 | 1019.7 | ||||||
| 07 | 12:56 | SE 11 | 8.05 | Overcast with Haze | OVC004 | 9 | 0 | 9.4 | 4.4 | 0% | 8 | 76.48 | 1021.3 | ||||
| 07 | 11:56 | SE 9 | 8.05 | Overcast with Haze | OVC004 | 8 | 0 | 0% | 7 | 76.58 | 1022.7 | ||||||
| 07 | 10:56 | S 13 | 9.66 | Overcast with Haze | OVC004 | 7 | 0 | 0% | 5 | 76.66 | 1023.5 | ||||||
| 07 | 09:56 | S 13 | 1.21 | Fog/Mist | OVC002 | 7 | 0 | 0% | 5 | 76.68 | 1024.1 | ||||||
| 07 | 08:56 | SE 11 | 0.40 | Fog | OVC002 | 6 | 0 | 0% | 4 | 76.78 | 1025.3 | ||||||
| 07 | 07:56 | SE 11 | 0.80 | Fog | OVC002 | 4 | 0 | 0% | 2 | 76.81 | 1025.9 | ||||||
| 07 | 06:56 | SE 11 | 0.80 | Fog | OVC002 | 4 | 0 | 5 | 3.9 | 0% | 2 | 76.84 | 1026.1 | ||||
| 07 | 05:56 | SE 11 | 1.61 | Fog/Mist | OVC002 | 4 | 0 | 0% | 2 | 76.86 | 1026.4 | ||||||
| 07 | 04:56 | SE 13 | 2.41 | Fog/Mist | OVC002 | 4 | 0 | 0% | 1 | 76.86 | 1026.3 | ||||||
| 07 | 03:56 | E 7 | 2.82 | Fog/Mist | OVC002 | 4 | 0 | 0% | 2 | 76.94 | 1027.2 | ||||||
| 07 | 02:56 | SE 11 | 2.82 | Fog/Mist | OVC002 | 4 | 0 | 0% | 2 | 76.96 | 1027.6 | ||||||
| 07 | 01:56 | SE 11 | 4.02 | Fog/Mist | OVC002 | 5 | 0 | 0% | 3 | 76.99 | 1028.2 | ||||||
| 07 | 00:56 | SE 9 | 4.83 | Fog/Mist | OVC004 | 6 | 0 | 6.7 | 5.6 | 0% | 4 | 77.04 | 1028.9 | ||||
| 06 | 23:56 | SE 9 | 8.05 | Overcast with Haze | OVC004 | 6 | 0 | 0% | 4 | 77.06 | 1029.1 | ||||||
| 06 | 22:56 | SE 13 | 8.05 | Overcast with Haze | OVC004 | 6 | 0 | 0% | 4 | 77.09 | 1029.4 | ||||||
| 06 | 21:56 | E 7 | 4.02 | Fog/Mist | OVC002 | 6 | 0 | 0% | 5 | 77.14 | 1030.1 | ||||||
| 06 | 20:56 | E 7 | 2.41 | Fog/Mist | OVC002 | 6 | 0 | 0% | 5 | 77.11 | 1029.9 | ||||||
| 06 | 19:56 | E 7 | 1.61 | Fog/Mist | OVC002 | 6 | 0 | 0% | 5 | 77.09 | 1029.5 | ||||||
| 06 | 18:56 | E 7 | 2.82 | Fog/Mist | OVC004 | 7 | 0 | 8.9 | 6.7 | 0% | 6 | 77.06 | 1029.1 | ||||
| 06 | 17:56 | E 11 | 4.83 | Fog/Mist | OVC004 | 7 | 0 | 0% | 5 | 77.04 | 1028.8 | ||||||
| 06 | 16:56 | E 9 | 8.05 | Overcast with Haze | OVC006 | 8 | 0 | 0% | 7 | 76.99 | 1028.1 | ||||||
| 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) | |||||||||||||||