Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
| Date | Time (edt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Temperature (ºF) | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | Pressure | Precipitation (in) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Air | Dwpt | 6 hour | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr | ||||||||||
| Max. | Min. | ||||||||||||||||
| 19 | 01:56 | SE 7 | 10.00 | Overcast | BKN065 OVC100 | 34 | 21 | 35.1 | 33.1 | 59% | 29 | 30.3 | 1028.0 | ||||
| 19 | 00:56 | SE 6 | 10.00 | Overcast | BKN065 OVC100 | 34 | 19.9 | 56% | 29 | 30.31 | 1028.5 | ||||||
| 18 | 23:56 | SE 7 | 10.00 | Overcast | OVC065 | 34 | 19.9 | 56% | 29 | 30.32 | 1028.6 | ||||||
| 18 | 22:56 | SE 7 | 10.00 | Overcast | OVC070 | 33.1 | 19 | 56% | 28 | 30.32 | 1028.8 | ||||||
| 18 | 21:56 | E 6 | 10.00 | Overcast | BKN095 OVC120 | 33.1 | 18 | 54% | 28 | 30.32 | 1029.0 | ||||||
| 18 | 20:56 | SE 6 | 10.00 | Mostly Cloudy | BKN120 | 35.1 | 12.9 | 40% | 31 | 30.32 | 1028.9 | ||||||
| 18 | 19:56 | SE 6 | 10.00 | Fair | CLR | 35.1 | 12 | 41 | 35.1 | 38% | 31 | 30.31 | 1028.4 | ||||
| 18 | 18:56 | S 7 | 10.00 | Fair | CLR | 37.9 | 10 | 31% | 33 | 30.32 | 1028.7 | ||||||
| 18 | 17:56 | S 10 | 10.00 | Fair | CLR | 39.9 | 9 | 28% | 34 | 30.32 | 1028.9 | ||||||
| 18 | 16:56 | SE 7 | 10.00 | Fair | CLR | 39.9 | 12 | 32% | 36 | 30.33 | 1029.1 | ||||||
| 18 | 15:56 | S 9 G 17 | 10.00 | Fair | CLR | 39.9 | 10.9 | 30% | 34 | 30.34 | 1029.5 | ||||||
| 18 | 14:56 | S 9 | 10.00 | Fair | CLR | 39 | 10.9 | 31% | 33 | 30.36 | 1030.1 | ||||||
| 18 | 13:56 | S 13 G 17 | 10.00 | Fair | CLR | 37.9 | 12 | 37.9 | 24.1 | 34% | 31 | 30.39 | 1031.1 | ||||
| 18 | 12:56 | S 8 | 10.00 | Fair | CLR | 36 | 10 | 34% | 30 | 30.41 | 1032.0 | ||||||
| 18 | 11:56 | Vrbl 3 | 10.00 | Fair | CLR | 33.1 | 8.1 | 35% | 30.42 | 1032.2 | |||||||
| 18 | 10:56 | SE 6 | 10.00 | A Few Clouds | FEW110 | 32 | 12 | 43% | 27 | 30.42 | 1032.1 | ||||||
| 18 | 09:56 | Vrbl 3 | 10.00 | A Few Clouds | FEW120 | 27 | 12.9 | 55% | 30.41 | 1031.8 | |||||||
| 18 | 08:56 | N 5 | 10.00 | A Few Clouds | FEW120 | 26.1 | 14 | 60% | 21 | 30.38 | 1031.0 | ||||||
| 18 | 07:56 | Calm | 10.00 | Fair | CLR | 24.1 | 14 | 24.1 | 21 | 65% | 30.39 | 1031.3 | |||||
| 18 | 06:56 | NW 5 | 10.00 | Fair | CLR | 23 | 14 | 68% | 18 | 30.39 | 1031.3 | ||||||
| 18 | 05:56 | NW 6 | 10.00 | Fair | CLR | 23 | 12.9 | 65% | 17 | 30.39 | 1031.2 | ||||||
| 18 | 04:56 | NW 3 | 10.00 | Fair | CLR | 21 | 12.9 | 71% | 30.35 | 1029.7 | |||||||
| 18 | 03:56 | NW 6 | 10.00 | Fair | CLR | 23 | 12 | 63% | 17 | 30.33 | 1029.1 | ||||||
| 18 | 02:56 | Vrbl 7 | 10.00 | Fair | CLR | 24.1 | 12 | 60% | 17 | 30.31 | 1028.6 | ||||||
| 18 | 01:56 | W 3 | 10.00 | Fair | CLR | 23 | 10.9 | 30.9 | 23 | 60% | 30.31 | 1028.6 | |||||
| 18 | 00:56 | Vrbl 5 | 10.00 | Fair | CLR | 26.1 | 10.9 | 53% | 21 | 30.29 | 1027.7 | ||||||
| 17 | 23:56 | NW 7 | 10.00 | Fair | CLR | 27 | 10.9 | 51% | 20 | 30.26 | 1027.0 | ||||||
| 17 | 22:56 | NW 10 G 16 | 10.00 | Fair | CLR | 27 | 10.9 | 51% | 18 | 30.24 | 1026.0 | ||||||
| 17 | 21:56 | NW 12 | 10.00 | Fair | CLR | 28.9 | 9 | 43% | 20 | 30.23 | 1025.7 | ||||||
| 17 | 20:56 | W 16 G 26 | 10.00 | Fair | CLR | 30 | 10 | 43% | 19 | 30.19 | 1024.4 | ||||||
| 17 | 19:56 | W 15 G 23 | 10.00 | Fair | CLR | 30.9 | 12 | 39.9 | 30.9 | 45% | 21 | 30.14 | 1022.7 | ||||
| 17 | 18:56 | W 24 G 31 | 10.00 | Partly Cloudy and Breezy | FEW060 SCT090 | 34 | 10.9 | 38% | 22 | 30.09 | 1021.1 | ||||||
| 17 | 17:56 | W 12 | 10.00 | Mostly Cloudy | BKN065 | 35.1 | 12 | 38% | 28 | 30.04 | 1019.4 | ||||||
| 17 | 16:56 | NW 14 G 25 | 10.00 | Partly Cloudy | FEW065 SCT085 | 37 | 10.9 | 34% | 29 | 30.01 | 1018.2 | ||||||
| 17 | 15:56 | NW 15 G 24 | 10.00 | Mostly Cloudy | BKN065 | 37.9 | 12.9 | 36% | 30 | 30 | 1017.7 | ||||||
| 17 | 14:56 | W 14 G 23 | 10.00 | Mostly Cloudy | BKN070 | 39 | 16 | 39% | 32 | 29.98 | 1017.2 | ||||||
| 17 | 13:56 | W 12 G 21 | 10.00 | Overcast | OVC060 | 36 | 15.1 | 37.9 | 28 | 42% | 29 | 29.99 | 1017.4 | ||||
| 17 | 12:56 | W 10 G 24 | 10.00 | Mostly Cloudy | BKN060 | 36 | 16 | 44% | 29 | 30 | 1017.6 | ||||||
| 17 | 11:56 | NW 14 G 18 | 10.00 | Mostly Cloudy | BKN047 | 35.1 | 19 | 52% | 27 | 29.99 | 1017.6 | ||||||
| 17 | 10:56 | NW 13 G 20 | 10.00 | Mostly Cloudy | BKN047 | 34 | 19 | 54% | 26 | 30 | 1017.9 | ||||||
| 17 | 09:56 | NW 16 G 30 | 10.00 | Fair | CLR | 32 | 18 | 56% | 22 | 29.98 | 1017.2 | ||||||
| 17 | 08:56 | W 14 | 10.00 | Mostly Cloudy | BKN055 | 30.9 | 17.1 | 56% | 21 | 29.96 | 1016.5 | ||||||
| 17 | 07:56 | W 8 | 10.00 | Fair | CLR | 28 | 17.1 | 33.1 | 27 | 63% | 21 | 29.92 | 1014.8 | ||||
| 17 | 06:56 | W 9 | 10.00 | Partly Cloudy | SCT049 | 28 | 18 | 66% | 20 | 29.88 | 1013.6 | ||||||
| 17 | 05:56 | W 20 G 26 | 10.00 | Partly Cloudy | SCT048 | 28.9 | 17.1 | 61% | 17 | 29.84 | 1012.1 | ||||||
| 17 | 04:56 | W 21 G 25 | 10.00 | Partly Cloudy and Breezy | SCT049 | 30 | 17.1 | 58% | 18 | 29.79 | 1010.4 | ||||||
| 17 | 03:56 | W 25 G 31 | 10.00 | Fair and Breezy | CLR | 30.9 | 18 | 59% | 18 | 29.76 | 1009.3 | ||||||
| 17 | 02:56 | W 22 G 30 | 10.00 | A Few Clouds and Breezy | FEW049 | 32 | 19.9 | 61% | 20 | 29.74 | 1008.6 | ||||||
| 17 | 01:56 | W 17 G 30 | 10.00 | Fair | CLR | 33.1 | 21 | 63 | 33.1 | 61% | 23 | 29.69 | 1006.8 | 0.46 | |||
| 17 | 00:56 | W 17 G 24 | 10.00 | A Few Clouds | FEW039 | 34 | 26.1 | 73% | 24 | 29.63 | 1004.9 | ||||||
| 16 | 23:56 | W 15 G 24 | 10.00 | Mostly Cloudy | BKN022 | 34 | 34 | 100% | 25 | 29.58 | 1003.2 | ||||||
| 16 | 22:56 | W 16 G 21 | 8.00 | Light Snow | OVC008 | 33.8 | 0 | 0% | 24 | 29.52 | 1001.2 | 0.14 | 0.46 | ||||
| 16 | 21:56 | NW 22 G 32 | 9.00 | Rain and Breezy | BKN016 OVC055 | 39 | 39 | 100% | 29 | 29.47 | 999.2 | 0.12 | |||||
| 16 | 20:56 | NW 20 G 36 | 4.00 | Light Rain Fog/Mist | BKN011 BKN017 OVC027 | 43 | 43 | 100% | 35 | 29.37 | 996.0 | 0.2 | |||||
| 16 | 19:56 | S 13 G 24 | 10.00 | Overcast | BKN023 OVC036 | 63 | 62.1 | 63 | 60.1 | 97% | 29.28 | 992.5 | 0.13 | ||||
| 16 | 18:56 | S 14 G 25 | 10.00 | Overcast | FEW009 BKN013 OVC020 | 62.6 | 0 | 0% | 29.3 | 993.5 | |||||||
| 16 | 17:56 | SE 14 | 10.00 | Light Rain | OVC007 | 62.6 | 0 | 0% | 29.34 | 994.6 | |||||||
| 16 | 16:56 | SE 15 | 10.00 | Light Rain | BKN013 BKN040 OVC110 | 60.8 | 0 | 0% | 29.39 | 996.4 | 0.13 | ||||||
| 16 | 15:56 | S 12 G 21 | 10.00 | Mostly Cloudy | FEW016 SCT080 BKN110 | 60.1 | 60.1 | 100% | 29.43 | 997.8 | |||||||
| 16 | 14:56 | S 8 | 10.00 | Overcast | FEW011 OVC075 | 60.8 | 0 | 0% | 29.47 | 999.0 | 0.13 | ||||||
| 16 | 13:56 | S 12 G 20 | 6.00 | Rain | FEW015 SCT050 OVC065 | 62.6 | 0 | 68 | 62.1 | 0% | 29.49 | 999.8 | 0.33 | 0.39 | |||
| 16 | 12:56 | S 14 G 20 | 10.00 | Light Rain | FEW018 BKN027 OVC075 | 66 | 64.9 | 96% | 29.55 | 1001.8 | 0.05 | ||||||
| 16 | 11:56 | S 14 G 25 | 10.00 | Overcast | OVC015 | 66 | 66 | 100% | 29.55 | 1001.9 | |||||||
| 16 | 10:56 | S 14 G 21 | 10.00 | Overcast | OVC017 | 66.9 | 66.9 | 100% | 29.59 | 1003.2 | 0.01 | ||||||
| 16 | 09:56 | S 8 G 21 | 10.00 | Overcast | OVC011 | 64.4 | 0 | 0% | 29.62 | 1004.0 | 0.01 | ||||||
| 16 | 08:56 | S 13 | 10.00 | Overcast | OVC011 | 64.4 | 0 | 0% | 29.63 | 1004.4 | |||||||
| 16 | 07:56 | S 14 G 21 | 10.00 | Overcast | OVC007 | 62.6 | 0 | 63 | 55.9 | 0% | 29.64 | 1005.0 | 0.01 | ||||
| 16 | 06:56 | SE 14 | 10.00 | Overcast | OVC005 | 60.8 | 0 | 0% | 29.65 | 1005.4 | 0.01 | ||||||
| 16 | 05:56 | SE 13 | 8.00 | Overcast | OVC003 | 60.8 | 0 | 0% | 29.68 | 1006.5 | |||||||
| 16 | 04:56 | S 12 G 20 | 6.00 | Overcast with Haze | OVC003 | 60.8 | 0 | 0% | 29.71 | 1007.3 | |||||||
| 16 | 03:56 | SE 14 G 18 | 7.00 | Overcast | OVC003 | 57.2 | 0 | 0% | 29.74 | 1008.4 | |||||||
| 16 | 02:56 | SE 9 | 10.00 | Overcast | OVC003 | 57.2 | 0 | 0% | 29.79 | 1010.0 | |||||||
| Date | Time (edt) | Wind (mph) | Vis. (mi.) | Weather | Sky Cond. | Air | Dwpt | Max. | Min. | Relative Humidity | Wind Chill (°F) | Heat Index (°F) | altimeter (in) | sea level (mb) | 1 hr | 3 hr | 6 hr |
| 6 hour | |||||||||||||||||
| Temperature (ºF) | Pressure | Precipitation (in) | |||||||||||||||