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. | ||||||||||||||||
| 17 | 17:56 | W 19 | 16.09 | Mostly Cloudy | BKN065 | 1.7 | -11.1 | 38% | -2 | 76.3 | 1019.4 | ||||||
| 17 | 16:56 | NW 22 G 41 | 16.09 | Partly Cloudy | FEW065 SCT085 | 2.8 | -11.7 | 34% | -2 | 76.23 | 1018.2 | ||||||
| 17 | 15:56 | NW 24 G 39 | 16.09 | Mostly Cloudy | BKN065 | 3.3 | -10.6 | 36% | -1 | 76.2 | 1017.7 | ||||||
| 17 | 14:56 | W 22 G 37 | 16.09 | Mostly Cloudy | BKN070 | 3.9 | -8.9 | 39% | -0 | 76.15 | 1017.2 | ||||||
| 17 | 13:56 | W 19 G 33 | 16.09 | Overcast | OVC060 | 2.2 | -9.4 | 3.3 | -2.2 | 42% | -2 | 76.17 | 1017.4 | ||||
| 17 | 12:56 | W 17 G 39 | 16.09 | Mostly Cloudy | BKN060 | 2.2 | -8.9 | 44% | -2 | 76.2 | 1017.6 | ||||||
| 17 | 11:56 | NW 22 G 30 | 16.09 | Mostly Cloudy | BKN047 | 1.7 | -7.2 | 52% | -3 | 76.17 | 1017.6 | ||||||
| 17 | 10:56 | NW 20 G 31 | 16.09 | Mostly Cloudy | BKN047 | 1.1 | -7.2 | 54% | -3 | 76.2 | 1017.9 | ||||||
| 17 | 09:56 | NW 26 G 48 | 16.09 | Fair | CLR | 0 | -7.8 | 56% | -6 | 76.15 | 1017.2 | ||||||
| 17 | 08:56 | W 22 | 16.09 | Mostly Cloudy | BKN055 | -0.6 | -8.3 | 56% | -6 | 76.1 | 1016.5 | ||||||
| 17 | 07:56 | W 13 | 16.09 | Fair | CLR | -2.2 | -8.3 | 0.6 | -2.8 | 63% | -6 | 76 | 1014.8 | ||||
| 17 | 06:56 | W 15 | 16.09 | Partly Cloudy | SCT049 | -2.2 | -7.8 | 66% | -7 | 75.9 | 1013.6 | ||||||
| 17 | 05:56 | W 31 G 43 | 16.09 | Partly Cloudy | SCT048 | -1.7 | -8.3 | 61% | -8 | 75.79 | 1012.1 | ||||||
| 17 | 04:56 | W 33 G 41 | 16.09 | Partly Cloudy and Breezy | SCT049 | -1.1 | -8.3 | 58% | -8 | 75.67 | 1010.4 | ||||||
| 17 | 03:56 | W 41 G 50 | 16.09 | Fair and Breezy | CLR | -0.6 | -7.8 | 59% | -8 | 75.59 | 1009.3 | ||||||
| 17 | 02:56 | W 35 G 48 | 16.09 | A Few Clouds and Breezy | FEW049 | 0 | -6.7 | 61% | -7 | 75.54 | 1008.6 | ||||||
| 17 | 01:56 | W 28 G 48 | 16.09 | Fair | CLR | 0.6 | -6.1 | 17.2 | 0.6 | 61% | -5 | 75.41 | 1006.8 | 1.17 | |||
| 17 | 00:56 | W 28 G 39 | 16.09 | A Few Clouds | FEW039 | 1.1 | -3.3 | 73% | -4 | 75.26 | 1004.9 | ||||||
| 16 | 23:56 | W 24 G 39 | 16.09 | Mostly Cloudy | BKN022 | 1.1 | 1.1 | 100% | -4 | 75.13 | 1003.2 | ||||||
| 16 | 22:56 | W 26 G 33 | 12.87 | Light Snow | OVC008 | 1 | 0 | 0% | -4 | 74.98 | 1001.2 | 0.36 | 1.17 | ||||
| 16 | 21:56 | NW 35 G 52 | 14.48 | Rain and Breezy | BKN016 OVC055 | 3.9 | 3.9 | 100% | -1 | 74.85 | 999.2 | 0.3 | |||||
| 16 | 20:56 | NW 31 G 57 | 6.44 | Light Rain Fog/Mist | BKN011 BKN017 OVC027 | 6.1 | 6.1 | 100% | 2 | 74.6 | 996.0 | 0.51 | |||||
| 16 | 19:56 | S 20 G 39 | 16.09 | Overcast | BKN023 OVC036 | 17.2 | 16.7 | 17.2 | 15.6 | 97% | 74.37 | 992.5 | 0.33 | ||||
| 16 | 18:56 | S 22 G 41 | 16.09 | Overcast | FEW009 BKN013 OVC020 | 17 | 0 | 0% | 74.42 | 993.5 | |||||||
| 16 | 17:56 | SE 22 | 16.09 | Light Rain | OVC007 | 17 | 0 | 0% | 74.52 | 994.6 | |||||||
| 16 | 16:56 | SE 24 | 16.09 | Light Rain | BKN013 BKN040 OVC110 | 16 | 0 | 0% | 74.65 | 996.4 | 0.33 | ||||||
| 16 | 15:56 | S 19 G 33 | 16.09 | Mostly Cloudy | FEW016 SCT080 BKN110 | 15.6 | 15.6 | 100% | 74.75 | 997.8 | |||||||
| 16 | 14:56 | S 13 | 16.09 | Overcast | FEW011 OVC075 | 16 | 0 | 0% | 74.85 | 999.0 | 0.33 | ||||||
| 16 | 13:56 | S 19 G 31 | 9.66 | Rain | FEW015 SCT050 OVC065 | 17 | 0 | 20 | 16.7 | 0% | 74.9 | 999.8 | 0.84 | 0.99 | |||
| 16 | 12:56 | S 22 G 31 | 16.09 | Light Rain | FEW018 BKN027 OVC075 | 18.9 | 18.3 | 96% | 75.06 | 1001.8 | 0.13 | ||||||
| 16 | 11:56 | S 22 G 41 | 16.09 | Overcast | OVC015 | 18.9 | 18.9 | 100% | 75.06 | 1001.9 | |||||||
| 16 | 10:56 | S 22 G 33 | 16.09 | Overcast | OVC017 | 19.4 | 19.4 | 100% | 75.16 | 1003.2 | 0.03 | ||||||
| 16 | 09:56 | S 13 G 33 | 16.09 | Overcast | OVC011 | 18 | 0 | 0% | 75.23 | 1004.0 | 0.03 | ||||||
| 16 | 08:56 | S 20 | 16.09 | Overcast | OVC011 | 18 | 0 | 0% | 75.26 | 1004.4 | |||||||
| 16 | 07:56 | S 22 G 33 | 16.09 | Overcast | OVC007 | 17 | 0 | 17.2 | 13.3 | 0% | 75.29 | 1005.0 | 0.03 | ||||
| 16 | 06:56 | SE 22 | 16.09 | Overcast | OVC005 | 16 | 0 | 0% | 75.31 | 1005.4 | 0.03 | ||||||
| 16 | 05:56 | SE 20 | 12.87 | Overcast | OVC003 | 16 | 0 | 0% | 75.39 | 1006.5 | |||||||
| 16 | 04:56 | S 19 G 31 | 9.66 | Overcast with Haze | OVC003 | 16 | 0 | 0% | 75.46 | 1007.3 | |||||||
| 16 | 03:56 | SE 22 G 30 | 11.27 | Overcast | OVC003 | 14 | 0 | 0% | 75.54 | 1008.4 | |||||||
| 16 | 02:56 | SE 15 | 16.09 | Overcast | OVC003 | 14 | 0 | 0% | 75.67 | 1010.0 | |||||||
| 16 | 01:56 | SE 20 | 6.44 | Light Rain | OVC003 | 13 | 0 | 13.3 | 9.4 | 0% | 75.74 | 1011.1 | 0.1 | 0.64 | |||
| 16 | 00:56 | E 15 G 26 | 4.83 | Rain | OVC005 | 12 | 0 | 0% | 75.87 | 1012.8 | 0.53 | ||||||
| 15 | 23:56 | Vrbl 9 | 16.09 | Overcast | BKN009 OVC013 | 10 | 10 | 100% | 9 | 76.02 | 1014.9 | ||||||
| 15 | 22:56 | E 17 | 16.09 | Light Rain | OVC017 | 10 | 9.4 | 96% | 8 | 76.15 | 1016.8 | ||||||
| 15 | 21:56 | E 9 | 16.09 | Overcast | BKN019 OVC027 | 10 | 7.2 | 83% | 9 | 76.28 | 1018.5 | ||||||
| 15 | 20:56 | Vrbl 7 | 16.09 | Overcast | OVC023 | 9.4 | 6.1 | 80% | 9 | 76.38 | 1019.7 | ||||||
| 15 | 19:56 | E 9 | 16.09 | Overcast | OVC025 | 9.4 | 5 | 12.2 | 9.4 | 74% | 8 | 76.45 | 1020.8 | ||||
| 15 | 18:56 | Vrbl 9 | 16.09 | Overcast | OVC029 | 9.4 | 3.9 | 69% | 8 | 76.5 | 1021.5 | ||||||
| 15 | 17:56 | Vrbl 7 | 16.09 | Light Rain | OVC031 | 9.4 | 3.3 | 66% | 9 | 76.56 | 1022.2 | ||||||
| 15 | 16:56 | E 11 G 26 | 16.09 | Overcast | OVC033 | 11.1 | 1.1 | 50% | 76.63 | 1023.1 | |||||||
| 15 | 15:56 | SE 20 G 28 | 16.09 | Overcast | OVC037 | 11.7 | 1.1 | 48% | 76.68 | 1023.7 | |||||||
| 15 | 14:56 | SE 22 G 31 | 16.09 | Overcast | OVC042 | 11.7 | 1.7 | 51% | 76.71 | 1024.3 | |||||||
| 15 | 13:56 | SE 28 G 37 | 16.09 | Overcast | OVC042 | 11.7 | 0.6 | 12.2 | 5 | 47% | 76.84 | 1026.0 | |||||
| 15 | 12:56 | SE 28 G 35 | 16.09 | Overcast | BKN040 OVC048 | 11.1 | -1.7 | 41% | 76.94 | 1027.3 | |||||||
| 15 | 11:56 | SE 20 G 37 | 16.09 | Overcast | OVC038 | 8.9 | -3.9 | 41% | 6 | 76.99 | 1028.2 | ||||||
| 15 | 10:56 | E 19 G 31 | 16.09 | Overcast | OVC040 | 8.3 | -5 | 39% | 6 | 77.04 | 1028.8 | ||||||
| 15 | 09:56 | SE 22 G 30 | 16.09 | Overcast | SCT045 OVC060 | 7.8 | -5.6 | 38% | 5 | 77.04 | 1028.6 | ||||||
| 15 | 08:56 | E 11 | 16.09 | Overcast | OVC047 | 6.7 | -5 | 43% | 5 | 77.06 | 1029.0 | ||||||
| 15 | 07:56 | Vrbl 9 | 16.09 | A Few Clouds | FEW047 | 5 | -5.6 | 6.1 | 3.9 | 47% | 3 | 77.04 | 1028.6 | ||||
| 15 | 06:56 | E 6 | 16.09 | Overcast | OVC050 | 5 | -5 | 49% | 77.04 | 1028.5 | |||||||
| 15 | 05:56 | E 6 | 16.09 | Mostly Cloudy | BKN048 | 4.4 | -6.1 | 47% | 76.99 | 1027.9 | |||||||
| 15 | 04:56 | E 9 | 16.09 | Fair | CLR | 5.6 | -7.2 | 40% | 4 | 76.99 | 1028.1 | ||||||
| 15 | 03:56 | E 7 | 16.09 | Fair | CLR | 6.1 | -8.3 | 35% | 5 | 76.99 | 1028.1 | ||||||
| 15 | 02:56 | Calm | 16.09 | Fair | CLR | 6.1 | -8.3 | 35% | 77.01 | 1028.3 | |||||||
| 15 | 01:56 | Calm | 16.09 | Fair | CLR | 5.6 | -8.9 | 10 | 3.3 | 35% | 77.01 | 1028.3 | |||||
| 15 | 00:56 | E 6 | 16.09 | Fair | CLR | 3.9 | -5.6 | 50% | 77.01 | 1028.3 | |||||||
| 14 | 23:56 | Calm | 16.09 | Fair | CLR | 4.4 | -6.1 | 47% | 76.99 | 1028.2 | |||||||
| 14 | 22:56 | Calm | 16.09 | Fair | CLR | 5 | -6.7 | 43% | 76.99 | 1027.9 | |||||||
| 14 | 21:56 | Calm | 16.09 | Fair | CLR | 8.3 | -9.4 | 28% | 76.91 | 1027.1 | |||||||
| 14 | 20:56 | Calm | 16.09 | Fair | CLR | 8.9 | -10 | 25% | 76.84 | 1025.8 | |||||||
| 14 | 19:56 | Calm | 16.09 | Fair | CLR | 9.4 | -10 | 14.4 | 9.4 | 25% | 76.73 | 1024.7 | |||||
| 14 | 18:56 | Calm | 16.09 | Fair | CLR | 12.2 | -10.6 | 19% | 76.73 | 1024.4 | |||||||
| 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) | |||||||||||||||