Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
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.
15 04:56 NW 7 16.09 Fair CLR 21.7 21.7 100% 76.25 1017.4
15 03:56 W 7 16.09 Fair CLR 22.2 21.7 97% 76.25 1017.3
15 02:56 W 7 16.09 Fair CLR 22.8 21.1 90% 76.28 1017.6
15 01:56 NW 6 16.09 Fair CLR 22.2 21.7 29.4 22.2 97% 76.3 1018.1
15 00:56 W 6 16.09 Fair CLR 23.9 21.1 84% 24 76.33 1018.4
14 23:56 W 6 16.09 Fair CLR 23.9 21.1 84% 24 76.35 1018.7
14 22:56 Calm 16.09 Fair CLR 23.9 22.2 90% 23 76.35 1018.8
14 21:56 W 6 16.09 Fair CLR 27.2 20.6 67% 29 76.35 1018.8
14 20:56 Vrbl 7 16.09 Fair CLR 28.3 20.6 63% 30 76.35 1018.8
14 19:56 W 7 16.09 Fair CLR 28.9 20.6 32.8 28.9 61% 31 76.38 1019.1
14 18:56 Vrbl 9 16.09 Fair CLR 30 21.1 59% 33 76.4 1019.3
14 17:56 W 7 16.09 Fair CLR 30.6 20.6 55% 33 76.45 1019.9
14 16:56 W 13 16.09 Fair CLR 31.7 21.7 55% 35 76.45 1020.1
14 15:56 Vrbl 11 14.48 Fair CLR 32.2 21.1 52% 35 76.5 1020.8
14 14:56 Vrbl 6 16.09 Fair CLR 32.2 20 48% 34 76.58 1021.7
14 13:56 W 7 9.66 Fair with Haze CLR 31.1 20.6 32.8 22.8 54% 34 76.61 1022.0
14 12:56 SW 7 6.44 Fair with Haze CLR 31.7 20.6 52% 34 76.66 1022.7
14 11:56 Vrbl 6 8.05 Fair with Haze CLR 29.4 21.1 61% 32 76.68 1023.3
14 10:56 SW 7 16.09 Fair CLR 28.3 20.6 63% 30 76.68 1023.2
14 09:56 W 13 16.09 Fair CLR 26.7 20.6 69% 28 76.71 1023.4
14 08:56 W 9 16.09 Fair CLR 25 20.6 77% 26 76.68 1023.3
14 07:56 Vrbl 9 16.09 Fair CLR 22.8 20.6 22.8 17.8 87% 76.68 1023.2
14 06:56 Calm 16.09 Fair CLR 18 0 0% 76.68 1023.5
14 05:56 Calm 16.09 Fair CLR 18 0 0% 76.68 1023.3
14 04:56 Calm 16.09 Fair CLR 19 0 0% 76.66 1023.0
14 03:56 Calm 16.09 Fair CLR 19.4 19.4 100% 76.68 1023.1
14 02:56 Calm 16.09 Fair CLR 21.1 19.4 90% 76.66 1022.9
14 01:56 Calm 16.09 Fair CLR 20 18.9 26.7 18.3 93% 76.71 1023.4
14 00:56 Calm 16.09 Fair CLR 19.4 17.8 91% 76.73 1023.7
13 23:56 Calm 16.09 Fair CLR 19.4 18.3 93% 76.76 1024.2
13 22:56 Calm 16.09 Fair CLR 21.1 15 68% 76.76 1024.3
13 21:56 SE 6 16.09 Fair CLR 22.8 15.6 64% 76.73 1023.8
13 20:56 SE 7 16.09 Fair CLR 23.9 16.1 62% 25 76.71 1023.5
13 19:56 Vrbl 6 16.09 Fair CLR 26.7 16.1 31.1 26.7 52% 27 76.71 1023.7
13 18:56 Calm 16.09 Fair CLR 27.8 16.7 51% 28 76.68 1023.1
13 17:56 Vrbl 7 16.09 Fair CLR 29.4 17.2 48% 30 76.66 1023.0
13 16:56 SE 11 16.09 Fair CLR 30 15.6 42% 30 76.66 1023.0
13 15:56 Calm 16.09 Fair CLR 30.6 14.4 37% 30 76.71 1023.5
13 14:56 SE 11 16.09 Fair CLR 29.4 14.4 40% 29 76.73 1023.9
13 13:56 SE 15 16.09 Fair CLR 28.9 16.1 28.9 21.1 46% 29 76.76 1024.3
13 12:56 SE 15 16.09 Fair CLR 28.3 16.1 48% 29 76.84 1025.1
13 11:56 SE 17 16.09 Fair CLR 27.2 16.7 53% 28 76.86 1025.7
13 10:56 SE 15 16.09 Fair CLR 26.7 16.7 54% 27 76.89 1025.9
13 09:56 Vrbl 6 16.09 Fair CLR 25.6 18.9 67% 27 76.89 1025.8
13 08:56 SE 7 16.09 Fair CLR 23.3 19.4 79% 76.89 1025.8
13 07:56 Calm 16.09 Fair CLR 21.7 19.4 21.7 16.7 87% 76.86 1025.5
13 06:56 Calm 16.09 Fair CLR 18.3 18.3 100% 76.81 1025.1
13 05:56 Calm 16.09 Fair CLR 17 0 0% 76.76 1024.4
13 04:56 Calm 16.09 Fair CLR 17 0 0% 76.73 1024.2
13 03:56 Calm 16.09 Fair CLR 17.2 17.2 100% 76.73 1024.0
13 02:56 Calm 16.09 Fair CLR 17.8 17.8 100% 76.76 1024.2
13 01:56 Calm 16.09 Fair CLR 18.3 17.8 25 18.3 97% 76.78 1024.7
13 00:56 Calm 16.09 Fair CLR 19.4 17.2 87% 76.78 1024.5
12 23:56 Calm 16.09 Mostly Cloudy BKN100 20.6 17.2 81% 76.76 1024.3
12 22:56 SE 6 16.09 Overcast OVC120 22.2 16.1 68% 76.76 1024.3
12 21:56 SE 11 16.09 Overcast OVC100 23.9 15.6 60% 25 76.73 1023.9
12 20:56 SE 13 16.09 Overcast OVC110 24.4 16.1 60% 26 76.68 1023.1
12 19:56 SE 9 16.09 Mostly Cloudy BKN120 25.6 17.8 29.4 25.6 62% 27 76.68 1023.3
12 18:56 SE 13 16.09 Overcast BKN047 OVC055 26.1 18.3 62% 27 76.66 1022.8
12 17:56 Vrbl 9 16.09 Partly Cloudy SCT047 27.2 20.6 67% 29 76.63 1022.4
12 16:56 Vrbl 6 16.09 Mostly Cloudy BKN045 BKN055 26.7 22.2 76% 29 76.61 1022.2
12 15:56 Vrbl 11 9.66 Partly Cloudy with Haze FEW031 SCT040 28.3 21.1 65% 31 76.61 1022.0
12 14:56 Vrbl 7 16.09 Partly Cloudy FEW027 SCT110 27.2 22.8 77% 30 76.63 1022.4
12 13:56 SE 11 16.09 Partly Cloudy FEW026 SCT110 28.3 22.2 28.9 23.9 70% 31 76.63 1022.4
12 12:56 Vrbl 6 16.09 Mostly Cloudy SCT024 BKN032 27.8 22.2 72% 30 76.66 1022.9
12 11:56 Vrbl 9 16.09 Partly Cloudy FEW018 SCT031 27.2 22.2 74% 30 76.68 1023.2
12 10:56 Calm 16.09 Overcast SCT016 BKN024 OVC031 25 22.8 88% 26 76.66 1022.9
12 09:56 Vrbl 6 16.09 Overcast OVC020 23.9 22.8 94% 23 76.66 1022.8
12 08:56 Vrbl 7 16.09 Overcast BKN016 OVC022 23.9 22.8 94% 23 76.61 1022.2
12 07:56 Vrbl 7 16.09 Overcast SCT012 OVC110 23.9 23.3 23.9 21.7 96% 23 76.56 1021.4
12 06:56 Calm 16.09 Mostly Cloudy FEW010 BKN015 22 0 0% 76.5 1020.8
12 05:56 Calm 16.09 Overcast BKN018 OVC027 22 0 0% 76.45 1020.0
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)