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.
20 13:56 W 26 16.09 Fair CLR 26.7 11.1 26.7 21.7 38% 27 75.97 1013.7
20 12:56 NW 15 16.09 Fair CLR 26.1 12.2 42% 26 76 1014.2
20 11:56 W 13 16.09 Fair CLR 25 13.3 48% 26 76.02 1014.6
20 10:56 W 22 G 33 16.09 Fair CLR 24.4 11.7 45% 26 76.02 1014.5
20 09:56 W 15 16.09 Fair CLR 23.9 12.8 50% 25 76.05 1014.8
20 08:56 Vrbl 11 16.09 Fair CLR 22.8 12.8 53% 76.02 1014.7
20 07:56 W 9 16.09 Fair CLR 21.7 13.3 22.2 13.9 59% 76.02 1014.4
20 06:56 W 7 16.09 Fair CLR 17.8 12.8 73% 76 1014.2
20 05:56 NW 6 16.09 Fair CLR 13.9 13.3 96% 75.97 1014.0
20 04:56 Calm 16.09 Fair CLR 14.4 13.9 97% 76 1014.0
20 03:56 Calm 16.09 Fair CLR 14.4 13.9 97% 76 1014.1
20 02:56 Calm 16.09 Fair CLR 16.1 12.2 78% 76 1014.0
20 01:56 Calm 16.09 Fair CLR 16.7 11.1 23.9 16.7 70% 75.97 1013.9
20 00:56 Calm 16.09 Fair CLR 19.4 10.6 57% 75.97 1013.9
19 23:56 W 11 16.09 Fair CLR 20 10.6 55% 75.95 1013.4
19 22:56 Calm 16.09 Fair CLR 20.6 10 51% 75.92 1013.1
19 21:56 W 7 16.09 Fair CLR 20.6 10 51% 75.9 1012.9
19 20:56 Calm 16.09 Fair CLR 21.1 10 49% 75.84 1012.3
19 19:56 NW 13 16.09 Fair CLR 23.9 10.6 26.7 23.3 43% 25 75.82 1011.7
19 18:56 NW 19 16.09 A Few Clouds FEW080 25.6 10.6 39% 26 75.79 1011.2
19 17:56 NW 22 G 37 16.09 Fair CLR 26.1 10.6 38% 26 75.72 1010.3
19 15:56 NW 19 G 30 16.09 Overcast OVC065 25.6 13.3 47% 26 75.69 1010.1
19 14:56 NW 17 G 31 16.09 Mostly Cloudy BKN065 25 12.8 47% 26 75.72 1010.3
19 13:56 NW 20 G 33 16.09 Partly Cloudy SCT050 25 13.9 25.6 21.1 50% 26 75.72 1010.1
19 12:56 NW 20 16.09 Partly Cloudy SCT048 24.4 14.4 54% 26 75.74 1010.5
19 11:56 NW 9 16.09 Fair CLR 22.8 13.3 55% 75.72 1010.5
19 10:56 NW 15 16.09 A Few Clouds FEW060 22.2 13.9 59% 75.74 1010.7
19 09:56 Vrbl 7 16.09 A Few Clouds FEW044 22.2 13.9 59% 75.77 1011.0
19 08:56 NW 13 16.09 Mostly Cloudy BKN080 21.1 12.8 59% 75.77 1011.0
19 07:56 Vrbl 7 16.09 Overcast OVC075 21.1 12.8 24.4 20.6 59% 75.79 1011.1
19 06:56 Vrbl 7 16.09 Overcast OVC075 21.1 13.9 64% 75.74 1010.7
19 05:56 NW 11 16.09 Overcast OVC110 21.7 15.6 68% 75.64 1009.4
19 04:56 NW 6 16.09 Fair CLR 21.1 15 68% 75.59 1008.6
19 03:56 W 7 16.09 Overcast OVC110 23.3 14.4 57% 75.59 1008.6
19 02:56 NW 20 G 28 16.09 Overcast OVC110 23.9 13.9 54% 25 75.62 1008.9
19 01:56 NW 24 16.09 Overcast OVC100 24.4 13.3 26.1 22.2 50% 26 75.64 1009.1
19 00:56 NW 17 16.09 Light Rain BKN120 23.9 13.3 52% 25 75.62 1008.8
18 23:56 W 13 16.09 Fair CLR 23.3 13.3 54% 75.59 1008.6
18 22:56 W 9 16.09 Fair CLR 22.2 14.4 61% 75.57 1008.4
18 21:56 W 9 16.09 Fair CLR 22.8 15 62% 75.54 1008.1
18 20:56 W 7 16.09 Fair CLR 23.9 16.1 62% 25 75.49 1007.4
18 19:56 W 13 16.09 Fair CLR 26.1 16.7 29.4 26.1 56% 27 75.46 1006.7
18 18:56 W 13 16.09 Fair CLR 27.2 17.2 54% 28 75.44 1006.3
18 17:56 W 13 16.09 Fair CLR 27.8 18.9 58% 29 75.41 1006.1
18 16:56 W 17 G 30 16.09 Fair CLR 27.8 19.4 60% 29 75.39 1005.6
18 15:56 W 26 G 37 16.09 Fair CLR 27.8 18.9 58% 29 75.36 1005.3
18 14:56 W 20 G 33 16.09 Fair CLR 28.3 19.4 59% 30 75.34 1005.2
18 13:56 W 24 G 39 16.09 Fair CLR 28.9 19.4 29.4 20 57% 30 75.39 1005.7 0.08
18 12:56 SW 17 G 30 16.09 Fair CLR 28.3 20.6 63% 30 75.39 1005.7
18 11:56 SW 11 16.09 Fair CLR 25 20.6 77% 26 75.41 1006.2
18 10:56 Vrbl 7 16.09 Fair CLR 22.8 20 84% 75.36 1005.7 0.03 0.08
18 09:56 W 19 G 30 16.09 Light Rain FEW040 BKN060 OVC070 21.1 21.1 100% 75.54 1008.1
18 08:56 W 7 16.09 Light Rain FEW075 SCT110 21.1 21.1 100% 75.49 1007.4 0.05
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
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)