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. | ||||||||||||||||
| 13 | 01:56 | Calm | 16.09 | Fair | CLR | -3.3 | -5.6 | 4.4 | -3.9 | 84% | 76.56 | 1022.8 | |||||
| 13 | 00:56 | SE 6 | 16.09 | Fair | CLR | -3.3 | -5 | 88% | 76.5 | 1022.1 | |||||||
| 12 | 23:56 | Calm | 16.09 | Fair | CLR | -1.1 | -5 | 75% | 76.53 | 1022.4 | |||||||
| 12 | 22:56 | Calm | 16.09 | Fair | CLR | 0 | -6.7 | 61% | 76.53 | 1022.4 | |||||||
| 12 | 21:56 | Calm | 16.09 | Fair | CLR | 1.7 | -9.4 | 44% | 76.56 | 1022.4 | |||||||
| 12 | 20:56 | NW 13 | 16.09 | Fair | CLR | 3.3 | -9.4 | 39% | 0 | 76.48 | 1021.3 | ||||||
| 12 | 19:56 | NW 19 G 28 | 16.09 | Fair | CLR | 3.9 | -7.8 | 6.1 | 0.6 | 43% | 0 | 76.35 | 1019.7 | ||||
| 12 | 18:56 | NW 19 G 39 | 16.09 | A Few Clouds | FEW065 | 5 | -7.2 | 41% | 2 | 76.25 | 1018.2 | ||||||
| 12 | 17:56 | NW 24 G 31 | 16.09 | Fair | CLR | 5.6 | -4.4 | 49% | 2 | 76.1 | 1016.1 | ||||||
| 12 | 16:56 | NW 15 G 30 | 16.09 | A Few Clouds | FEW044 | 3.9 | 3.9 | 100% | 1 | 76.05 | 1015.5 | ||||||
| 12 | 15:56 | NW 17 | 16.09 | Mostly Cloudy | FEW060 SCT075 BKN120 | 2 | 0 | 0% | -2 | 76.07 | 1015.7 | ||||||
| 12 | 14:56 | NW 6 | 16.09 | Overcast | BKN080 OVC090 | 1 | 0 | 0% | 76.02 | 1015.1 | |||||||
| 12 | 13:56 | Calm | 16.09 | Light Rain | FEW021 BKN036 OVC046 | 1 | 0 | 6.7 | 0 | 0% | 76.05 | 1015.5 | 0.1 | 1.02 | |||
| 12 | 12:56 | Vrbl 11 | 1.21 | Light Snow | OVC005 | 0 | 0 | 0% | -3 | 76.07 | 1015.6 | 0.18 | |||||
| 12 | 11:56 | NW 22 | 2.01 | Light Snow | BKN005 OVC011 | 1 | 0 | 0% | -4 | 76.02 | 1014.9 | 0.18 | |||||
| 12 | 10:56 | NW 19 G 26 | 8.05 | Unknown Precip Fog/Mist | BKN009 OVC015 | 1.7 | 1.7 | 100% | -2 | 76.02 | 1015.1 | 0.25 | 0.56 | ||||
| 12 | 09:56 | NW 15 | 14.48 | Rain | FEW026 BKN070 OVC080 | 3.9 | 3.9 | 100% | 1 | 75.97 | 1014.3 | 0.23 | |||||
| 12 | 08:56 | Vrbl 11 G 31 | 12.87 | Light Rain | SCT017 BKN022 OVC065 | 5 | 5 | 100% | 3 | 75.82 | 1012.3 | 0.08 | |||||
| 12 | 07:56 | NW 26 G 41 | 11.27 | Light Rain | SCT018 SCT024 OVC050 | 6.7 | 6.7 | 20.6 | 6.7 | 100% | 3 | 75.69 | 1010.6 | 0.1 | 0.1 | ||
| 12 | 06:56 | NW 22 G 43 | 16.09 | Light Rain | FEW023 BKN048 OVC100 | 10 | 6.7 | 80% | 7 | 75.59 | 1008.7 | ||||||
| 12 | 05:56 | NW 19 G 37 | 16.09 | Light Rain | FEW041 BKN065 OVC090 | 13.3 | 10 | 81% | 75.46 | 1007.0 | |||||||
| 12 | 04:56 | NW 31 G 48 | 16.09 | Overcast | FEW050 OVC070 | 16.7 | 13.3 | 80% | 75.31 | 1005.0 | |||||||
| 12 | 03:56 | Calm | 16.09 | Overcast | OVC100 | 17.2 | 16.7 | 97% | 75.18 | 1003.3 | |||||||
| 12 | 02:56 | Calm | 16.09 | Fair | CLR | 18.3 | 15 | 81% | 75.23 | 1004.1 | |||||||
| 12 | 01:56 | W 7 | 16.09 | Mostly Cloudy | BKN100 | 20.6 | 15 | 23.9 | 16.1 | 70% | 75.31 | 1004.9 | |||||
| 12 | 00:56 | SW 15 G 26 | 16.09 | Fair | CLR | 23.9 | 12.2 | 48% | 25 | 75.26 | 1004.2 | ||||||
| 11 | 23:56 | SW 13 | 16.09 | Fair | CLR | 23.3 | 13.3 | 54% | 75.29 | 1004.6 | |||||||
| 11 | 22:56 | S 15 | 16.09 | Fair | CLR | 19.4 | 18.3 | 93% | 75.34 | 1005.2 | |||||||
| 11 | 21:56 | SE 9 | 6.44 | A Few Clouds with Haze | FEW110 | 17 | 0 | 0% | 75.39 | 1006.1 | |||||||
| 11 | 20:56 | Calm | 16.09 | Fair | CLR | 17 | 0 | 0% | 75.44 | 1006.8 | |||||||
| 11 | 19:56 | Calm | 16.09 | Partly Cloudy | SCT110 | 18 | 0 | 29.4 | 17.8 | 0% | 75.49 | 1007.7 | 0.51 | 0.51 | |||
| 11 | 18:56 | W 15 | 16.09 | A Few Clouds | FEW110 | 27.2 | 14.4 | 45% | 27 | 75.57 | 1008.3 | ||||||
| 11 | 17:56 | S 15 G 31 | 16.09 | Fair | CLR | 27.8 | 15 | 46% | 28 | 75.49 | 1007.3 | ||||||
| 11 | 16:56 | S 19 G 31 | 16.09 | Partly Cloudy | SCT120 | 28.3 | 15 | 44% | 28 | 75.49 | 1007.5 | ||||||
| 11 | 15:56 | S 13 | 16.09 | Fair | CLR | 28.9 | 15 | 43% | 29 | 75.59 | 1008.7 | ||||||
| 11 | 14:56 | S 19 | 16.09 | Fair | CLR | 27.8 | 15 | 46% | 28 | 75.69 | 1010.0 | ||||||
| 11 | 13:56 | SW 13 | 16.09 | Partly Cloudy | SCT110 | 25 | 14.4 | 25 | 14.4 | 52% | 26 | 75.82 | 1011.9 | ||||
| 11 | 12:56 | S 13 | 16.09 | Mostly Cloudy | FEW044 BKN110 | 23.9 | 14.4 | 55% | 25 | 75.92 | 1013.0 | ||||||
| 11 | 11:56 | S 15 | 16.09 | Mostly Cloudy | BKN100 | 22.8 | 13.9 | 57% | 75.97 | 1013.8 | |||||||
| 11 | 10:56 | Calm | 16.09 | Overcast | BKN070 BKN090 OVC110 | 20.6 | 13.9 | 66% | 76.02 | 1014.5 | |||||||
| 11 | 09:56 | S 7 | 16.09 | Overcast | BKN075 OVC120 | 20 | 12.8 | 63% | 76.05 | 1014.7 | |||||||
| 11 | 08:56 | S 11 | 16.09 | Fair | CLR | 19.4 | 12.2 | 63% | 76.02 | 1014.5 | |||||||
| 11 | 07:56 | SE 6 | 16.09 | Fair | CLR | 14.4 | 11.1 | 17.8 | 13.9 | 81% | 76 | 1014.3 | |||||
| 11 | 06:56 | SE 6 | 16.09 | Fair | CLR | 14.4 | 11.1 | 81% | 76.02 | 1014.6 | |||||||
| 11 | 05:56 | SE 6 | 16.09 | Fair | CLR | 15 | 10.6 | 75% | 76.02 | 1014.7 | |||||||
| 11 | 04:56 | S 7 | 16.09 | Fair | CLR | 16.1 | 10.6 | 70% | 76.02 | 1014.6 | |||||||
| 11 | 03:56 | SE 7 | 16.09 | Fair | CLR | 16.1 | 10 | 67% | 76.07 | 1015.0 | |||||||
| 11 | 02:56 | Calm | 16.09 | Partly Cloudy | SCT110 | 16.1 | 9.4 | 65% | 76.1 | 1015.6 | |||||||
| 11 | 01:56 | SE 6 | 16.09 | A Few Clouds | FEW120 | 17.8 | 8.9 | 22.8 | 17.2 | 56% | 76.12 | 1015.8 | |||||
| 11 | 00:56 | S 6 | 16.09 | Fair | CLR | 19.4 | 8.3 | 49% | 76.15 | 1016.1 | |||||||
| 10 | 23:56 | SE 13 | 16.09 | Fair | CLR | 19.4 | 7.8 | 47% | 76.2 | 1016.7 | |||||||
| 10 | 22:56 | SE 11 | 16.09 | Fair | CLR | 18.9 | 7.8 | 49% | 76.2 | 1016.8 | |||||||
| 10 | 21:56 | SE 9 | 16.09 | Fair | CLR | 20.6 | 7.8 | 44% | 76.17 | 1016.8 | |||||||
| 10 | 20:56 | SE 11 | 16.09 | Fair | CLR | 21.1 | 7.2 | 41% | 76.2 | 1017.0 | |||||||
| 10 | 19:56 | SE 7 | 16.09 | Fair | CLR | 22.8 | 7.2 | 29.4 | 22.8 | 37% | 76.17 | 1016.7 | |||||
| 10 | 18:56 | S 7 | 16.09 | Fair | CLR | 25.6 | 6.7 | 30% | 26 | 76.15 | 1016.4 | ||||||
| 10 | 17:56 | S 13 | 16.09 | Fair | CLR | 28.3 | 5.6 | 24% | 27 | 76.12 | 1016.1 | ||||||
| 10 | 16:56 | S 13 | 16.09 | Fair | CLR | 28.9 | 7.2 | 25% | 28 | 76.15 | 1016.3 | ||||||
| 10 | 15:56 | SW 13 | 16.09 | Fair | CLR | 28.9 | 8.9 | 29% | 28 | 76.15 | 1016.3 | ||||||
| 10 | 14:56 | S 9 | 16.09 | Fair | CLR | 28.3 | 9.4 | 31% | 27 | 76.23 | 1017.1 | ||||||
| 10 | 13:56 | SW 13 | 16.09 | Fair | CLR | 28.3 | 8.9 | 28.3 | 6.7 | 30% | 27 | 76.28 | 1017.8 | ||||
| 10 | 12:56 | SE 13 | 16.09 | Fair | CLR | 28.3 | 7.8 | 27% | 27 | 76.3 | 1018.4 | ||||||
| 10 | 11:56 | S 7 | 16.09 | Fair | CLR | 27.2 | 6.1 | 26% | 26 | 76.35 | 1019.0 | ||||||
| 10 | 10:56 | SW 7 | 16.09 | Fair | CLR | 22.2 | 5 | 33% | 76.4 | 1019.7 | |||||||
| 10 | 09:56 | SW 6 | 16.09 | Fair | CLR | 17.8 | 7.2 | 50% | 76.4 | 1020.0 | |||||||
| 10 | 08:56 | Calm | 16.09 | Fair | CLR | 10.6 | 10 | 96% | 76.38 | 1019.7 | |||||||
| 10 | 07:56 | Calm | 16.09 | Fair | CLR | 7.2 | 7.2 | 10 | 6.1 | 100% | 76.33 | 1019.2 | |||||
| 10 | 06:56 | Calm | 16.09 | Fair | CLR | 7.2 | 7.2 | 100% | 76.33 | 1018.9 | |||||||
| 10 | 05:56 | Calm | 16.09 | Fair | CLR | 7.2 | 7.2 | 100% | 76.3 | 1018.7 | |||||||
| 10 | 04:56 | Calm | 16.09 | Fair | CLR | 6.7 | 6.7 | 100% | 76.28 | 1018.2 | |||||||
| 10 | 03:56 | Calm | 16.09 | Fair | CLR | 7.8 | 7.8 | 100% | 76.28 | 1018.2 | |||||||
| 10 | 02:56 | Calm | 16.09 | Fair | CLR | 8.9 | 7.8 | 93% | 76.28 | 1018.2 | |||||||
| 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) | |||||||||||||||