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.
18 07:56 Calm 11.27 Light Rain SCT090 BKN110 21.1 19.4 23.9 21.1 90% 75.49 1007.2 0.03 0.03
18 06:56 SW 9 16.09 A Few Clouds FEW120 23.3 17.2 69% 75.46 1006.9
18 05:56 S 11 16.09 Fair CLR 23.3 17.2 69% 75.39 1006.0
18 04:56 S 6 16.09 Fair CLR 23.3 18.3 74% 75.44 1006.6
18 03:56 S 15 16.09 Fair CLR 23.3 18.9 76% 75.46 1006.9
18 02:56 SE 13 16.09 A Few Clouds FEW120 23.3 18.9 76% 75.54 1007.7
18 01:56 Vrbl 11 16.09 Overcast OVC110 23.9 18.9 27.8 23.9 74% 25 75.64 1009.3
18 00:56 S 13 16.09 Fair CLR 24.4 18.3 69% 25 75.64 1009.0
17 23:56 S 13 16.09 Fair CLR 24.4 18.3 69% 25 75.67 1009.6
17 22:56 SE 11 16.09 Fair CLR 24.4 17.8 67% 25 75.64 1009.1
17 21:56 SE 15 16.09 Fair CLR 25 16.1 58% 26 75.59 1008.5
17 20:56 S 11 16.09 Fair CLR 26.1 14.4 49% 27 75.62 1008.8
17 19:56 S 13 16.09 A Few Clouds FEW100 27.8 14.4 30.6 27.8 44% 28 75.62 1008.8
17 18:56 S 11 G 26 16.09 Partly Cloudy FEW070 SCT100 28.3 14.4 43% 28 75.62 1009.1
17 17:56 S 19 G 28 16.09 A Few Clouds FEW075 30 14.4 39% 30 75.59 1008.7
17 16:56 S 17 G 28 16.09 Partly Cloudy FEW075 SCT090 30 14.4 39% 30 75.62 1008.9
17 15:56 S 19 16.09 Partly Cloudy SCT075 30 15 40% 30 75.64 1009.2
17 14:56 S 13 16.09 Overcast BKN065 OVC080 28.3 14.4 43% 28 75.64 1009.5
17 13:56 W 13 16.09 Mostly Cloudy BKN065 28.9 15 28.9 21.7 43% 29 75.69 1009.9
17 12:56 W 13 16.09 Overcast BKN060 OVC080 26.1 15 50% 27 75.74 1010.9
17 11:56 SW 13 16.09 A Few Clouds FEW049 28.3 15.6 46% 28 75.64 1009.4
17 10:56 W 9 16.09 Fair CLR 26.7 16.1 52% 27 75.74 1010.8
17 09:56 W 11 16.09 Fair CLR 25 17.2 62% 26 75.79 1011.2
17 08:56 SW 7 16.09 Fair CLR 23.3 17.2 69% 75.79 1011.4
17 07:56 Vrbl 7 16.09 Fair CLR 21.7 17.2 21.7 15 76% 75.79 1011.2
17 06:56 SE 9 16.09 Fair CLR 17.8 16.7 93% 75.77 1011.1
17 05:56 SE 6 16.09 Fair CLR 15 15 100% 75.74 1010.6
17 04:56 Calm 16.09 Fair CLR 15.6 15.6 100% 75.69 1010.1
17 03:56 Calm 16.09 Fair CLR 16.1 15.6 97% 75.72 1010.4
17 02:56 Calm 16.09 Fair CLR 16.1 15 93% 75.72 1010.4
17 01:56 SE 6 16.09 Fair CLR 17.2 13.9 23.9 17.2 81% 75.74 1010.7
17 00:56 Vrbl 9 16.09 Fair CLR 18.3 13.3 73% 75.74 1011.0
16 23:56 Calm 16.09 Partly Cloudy SCT060 18.9 12.8 68% 75.77 1011.2
16 22:56 Calm 16.09 Partly Cloudy SCT055 19.4 12.8 66% 75.77 1011.2
16 21:56 Vrbl 6 16.09 Overcast BKN085 OVC110 20 11.7 59% 75.79 1011.4
16 20:56 Calm 16.09 Mostly Cloudy BKN100 20 10.6 55% 75.77 1011.3
16 19:56 S 6 16.09 Fair CLR 23.9 10 26.1 23.3 42% 25 75.77 1011.1
16 18:56 Vrbl 6 16.09 Fair CLR 25 8.9 36% 26 75.77 1011.2
16 17:56 Vrbl 7 G 26 16.09 Fair CLR 25.6 8.9 35% 26 75.77 1011.1
16 16:56 Vrbl 7 16.09 Fair CLR 25 7.8 33% 25 75.82 1011.9
16 15:56 Vrbl 7 16.09 Fair CLR 25.6 7.8 32% 26 75.84 1012.2
16 14:56 Vrbl 6 16.09 Fair CLR 24.4 7.2 33% 25 75.9 1012.7
16 13:56 Vrbl 7 16.09 Fair CLR 23.9 7.8 23.9 15.6 36% 25 75.92 1013.3
16 12:56 W 9 16.09 Fair CLR 23.3 7.8 37% 76 1014.2
16 11:56 Vrbl 6 16.09 Fair CLR 22.2 8.3 41% 76.05 1014.8
16 10:56 Calm 16.09 Fair CLR 20.6 7.2 42% 76.07 1015.3
16 09:56 Vrbl 6 16.09 Fair CLR 20.6 6.7 41% 76.1 1015.7
16 08:56 W 9 16.09 Fair CLR 18.3 8.3 52% 76.12 1016.1
16 07:56 NW 7 16.09 Fair CLR 15.6 10.6 15.6 10 72% 76.15 1016.1
16 06:56 Calm 16.09 Fair CLR 12.2 10.6 90% 76.1 1015.9
16 05:56 Calm 16.09 Fair CLR 10.6 10.6 100% 76.07 1015.4
16 04:56 Calm 16.09 Fair CLR 10.6 10.6 100% 76.05 1015.2
16 03:56 Calm 16.09 Fair CLR 11.7 11.1 96% 76.07 1015.3
16 02:56 Calm 16.09 Fair CLR 12.8 10 83% 76.07 1015.2
16 01:56 Calm 16.09 Fair CLR 14.4 10.6 21.1 12.8 78% 76.05 1014.8
16 00:56 Calm 16.09 Fair CLR 14.4 13.9 97% 76.02 1014.7
15 23:56 Calm 16.09 Fair CLR 16.1 11.7 75% 76 1014.3
15 22:56 NW 7 16.09 Fair CLR 16.7 12.2 75% 75.97 1013.8
15 21:56 W 7 16.09 Fair CLR 17.8 11.7 68% 75.9 1013.0
15 20:56 W 9 12.87 Fair CLR 18.9 11.7 63% 75.87 1012.3
15 19:56 NW 15 16.09 Fair CLR 21.1 11.7 24.4 21.1 55% 75.84 1012.0
15 18:56 NW 15 16.09 Mostly Cloudy BKN090 22.8 12.8 53% 75.82 1011.7
15 17:56 W 17 16.09 Mostly Cloudy BKN095 23.9 13.3 52% 25 75.79 1011.6
15 16:56 NW 17 G 26 16.09 Overcast FEW060 OVC090 22.2 11.7 52% 75.82 1011.7
15 15:56 W 17 16.09 Overcast BKN065 OVC080 23.3 11.7 48% 75.79 1011.6
15 14:56 NW 15 16.09 Mostly Cloudy FEW050 BKN075 24.4 12.8 48% 26 75.79 1011.4
15 13:56 Vrbl 11 G 26 16.09 Mostly Cloudy FEW048 BKN070 23.9 12.8 24.4 18.9 50% 25 75.84 1011.9
15 12:56 W 22 G 28 16.09 Mostly Cloudy SCT049 BKN070 23.3 13.3 54% 75.84 1012.0
15 11:56 NW 19 G 30 16.09 Mostly Cloudy SCT047 BKN060 21.7 11.7 53% 75.84 1012.2
15 10:56 NW 17 16.09 Mostly Cloudy BKN041 21.7 12.2 55% 75.84 1011.9
15 09:56 Vrbl 9 16.09 Mostly Cloudy BKN039 21.1 12.8 59% 75.79 1011.4
15 08:56 NW 15 G 28 16.09 Fair CLR 20.6 12.8 61% 75.79 1011.2
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)