Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (est) 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.
21 11:56 Vrbl 6 16.09 Fair CLR 8.9 -2.8 44% 76.23 1017.9
21 10:56 N 9 16.09 Fair CLR 8.3 -2.8 46% 7 76.23 1017.8
21 09:56 Vrbl 6 16.09 Fair CLR 8.9 -2.8 44% 76.25 1018.4
21 08:56 W 6 16.09 Fair CLR 7.2 -3.3 48% 76.25 1018.3
21 07:56 Calm 16.09 Fair CLR 1.7 -2.2 76% 76.1 1016.4
21 06:56 Calm 16.09 Fair CLR 2.8 -3.3 8.3 1.7 65% 76.05 1015.8
21 05:56 W 13 16.09 Fair CLR 5 -3.3 55% 2 75.97 1014.4
21 04:56 W 15 16.09 Fair CLR 6.1 -3.3 51% 3 75.84 1012.8
21 03:56 W 20 16.09 Fair CLR 6.7 -3.3 49% 3 75.77 1011.7
21 02:56 W 30 G 44 16.09 Fair CLR 7.8 -2.8 47% 4 75.72 1010.9
21 01:56 NW 19 G 30 16.09 Fair CLR 7.8 -2.2 50% 5 75.74 1011.3
21 00:56 NW 9 16.09 Fair CLR 7.8 -1.7 10.6 3.3 51% 6 75.72 1010.9
20 23:56 W 22 G 33 16.09 Fair CLR 10.6 -2.8 39% 75.62 1009.7
20 22:56 SW 7 16.09 Fair CLR 7.8 -1.1 54% 7 75.59 1009.3
20 21:56 Vrbl 7 12.87 Fair CLR 3 0 0% 1 75.54 1008.6
20 20:56 Calm 4.02 Fog/Mist CLR 4 0 0% 75.44 1007.4
20 19:56 Calm 12.87 Fair CLR 4 0 0% 75.34 1006.0
20 18:56 Calm 16.09 Fair CLR 7.2 7.2 13.3 7.2 100% 75.26 1005.0
20 17:56 Calm 16.09 Fair CLR 10.6 10 96% 75.18 1003.7
20 16:56 SW 7 16.09 Fair CLR 13.3 9.4 77% 75.08 1002.5
20 15:56 SW 15 16.09 Fair CLR 12.8 8.9 77% 75.08 1002.4
20 14:56 Vrbl 7 16.09 Mostly Cloudy BKN010 10 10 100% 9 75.11 1002.8
20 13:56 S 11 16.09 Overcast OVC008 8 0 0% 6 75.13 1003.3
20 12:56 SW 9 16.09 Overcast OVC006 7 0 7.2 2.8 0% 5 75.26 1005.0 0.48
20 11:56 W 7 8.05 Overcast with Haze OVC004 6 0 0% 5 75.36 1006.3
20 10:56 NW 6 12.87 Overcast OVC004 6 0 0% 75.41 1007.2
20 09:56 Calm 16.09 Overcast OVC004 4 0 0% 75.39 1007.0 0.48
20 08:56 E 9 16.09 Light Rain OVC004 4 0 0% 2 75.44 1007.5 0.23
20 07:56 Calm 4.83 Rain SCT003 BKN012 OVC080 3 0 0% 75.64 1010.0 0.25
20 06:56 Calm 2.01 Rain BKN005 BKN009 OVC015 3 0 3.3 2.8 0% 75.64 1010.2 0.18 0.48
20 05:56 Calm 4.02 Light Rain BKN004 OVC008 3 0 0% 75.67 1010.4 0.15
20 04:56 Vrbl 7 2.41 Rain OVC002 3 0 0% 1 75.62 1009.8 0.1
20 03:56 Vrbl 7 2.82 Light Rain OVC002 3 0 0% 1 75.67 1010.6 0.05 0.05
20 02:56 E 6 1.61 Fog/Mist OVC002 3 0 0% 75.79 1012.1
20 01:56 Vrbl 7 1.61 Fog/Mist OVC002 3 0 0% 1 75.87 1013.1
20 00:56 Calm 1.61 Fog/Mist OVC002 3 0 4.4 3.3 0% 75.95 1014.4 0.08
19 23:56 Calm 3.22 Fog/Mist OVC004 3 0 0% 75.97 1014.7
19 22:56 E 6 4.02 Fog/Mist OVC004 4 0 0% 76 1014.8
19 21:56 E 7 6.44 Overcast with Haze OVC004 4 0 0% 2 76.02 1015.2 0.08
19 20:56 Vrbl 7 8.05 Light Rain OVC004 4 0 0% 2 76.02 1015.4 0.03
19 19:56 E 7 8.05 Light Rain OVC004 4 0 0% 2 76.05 1015.7 0.05
19 18:56 NE 7 8.05 Light Rain OVC004 4 0 3.9 3.3 0% 2 76.07 1015.8 0.08 0.36
19 17:56 Vrbl 9 6.44 Light Rain OVC004 4 0 0% 2 76.05 1015.6 0.2
19 16:56 N 7 3.22 Light Rain OVC002 4 0 0% 2 76.07 1016.0 0.08
19 15:56 Vrbl 6 0.80 Light Rain OVC002 3 0 0% 76.05 1015.5
19 14:56 Calm 1.61 Light Rain OVC002 4 0 0% 76.07 1016.1
19 13:56 Vrbl 7 1.21 Light Rain OVC002 3 0 0% 1 76.1 1016.3
19 12:56 Calm 1.61 Fog/Mist OVC002 3 0 3.9 2.8 0% 76.2 1017.7
19 11:56 Vrbl 7 1.21 Fog/Mist OVC002 3 0 0% 1 76.25 1018.3
19 10:56 E 6 1.21 Fog/Mist OVC002 3 0 0% 76.25 1018.5
19 09:56 Vrbl 7 0.80 Fog OVC002 4 0 0% 2 76.17 1017.5
19 08:56 E 9 0.40 Fog OVC002 3 0 0% 1 76.2 1017.5
19 07:56 NE 7 0.40 Fog OVC002 3 0 0% 1 76.15 1016.9
19 06:56 Vrbl 7 0.80 Fog OVC002 3 0 4.4 2.2 0% 1 76.07 1015.9
19 05:56 NE 7 2.82 Fog/Mist BKN065 2 0 0% 0 76 1015.1
19 04:56 Calm 4.83 Fog/Mist CLR 3 0 0% 75.95 1014.1
19 03:56 Vrbl 6 6.44 Fair with Haze CLR 4 0 0% 75.9 1013.4
19 02:56 Calm 3.22 Fog/Mist CLR 3 0 0% 75.84 1012.7
19 01:56 Calm 9.66 Fair with Haze CLR 3 0 0% 75.82 1012.6
19 00:56 Calm 11.27 Fair CLR 4 0 8.3 3.9 0% 75.77 1012.0
18 23:56 Calm 14.48 A Few Clouds FEW055 4 0 0% 75.77 1012.0
18 22:56 Calm 16.09 A Few Clouds FEW044 6 0 0% 75.74 1011.5
18 21:56 Calm 16.09 Mostly Cloudy FEW046 BKN065 6.1 6.1 100% 75.72 1011.2
18 20:56 Calm 16.09 Overcast BKN048 OVC060 7.8 7.8 100% 75.67 1010.5
18 19:56 Calm 16.09 Overcast OVC055 7.8 7.2 96% 75.62 1009.9
18 18:56 Calm 16.09 Overcast OVC050 8.9 7.2 10.6 7.8 89% 75.62 1009.9
18 17:56 Calm 14.48 Overcast OVC050 8.9 7.2 89% 75.59 1009.3
18 16:56 SE 7 16.09 Overcast OVC055 8.9 6.7 86% 8 75.57 1009.1
18 15:56 Calm 16.09 Overcast OVC048 9.4 6.7 83% 75.51 1008.5
18 14:56 Calm 16.09 Overcast OVC050 8.9 6.7 86% 75.54 1008.7
18 13:56 Calm 16.09 Overcast OVC060 8.3 6.1 86% 75.57 1009.2
18 12:56 SW 7 14.48 Mostly Cloudy BKN070 8.3 6.1 8.3 1.1 86% 7 75.62 1009.9
Date Time (est) 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)