Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (est) 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.
11 19:56 NW 14 G 18 10.00 Overcast OVC048 34 17.1 50% 25 30.14 1022.5
11 18:56 W 18 G 30 10.00 Overcast OVC055 33.1 18 46 33.1 54% 23 30.12 1021.9
11 17:56 W 15 G 24 10.00 Fair CLR 33.1 17.1 52% 24 30.1 1021.2
11 16:56 W 20 G 31 10.00 A Few Clouds FEW060 35.1 17.1 48% 25 30.06 1019.9
11 15:56 W 24 G 39 10.00 Overcast and Breezy FEW047 OVC060 37.9 16 41% 28 30.02 1018.3
11 14:56 NW 23 G 28 10.00 Mostly Cloudy and Breezy BKN041 39.9 24.1 53% 30 29.96 1016.2
11 13:56 W 20 G 29 10.00 Mostly Cloudy FEW055 BKN090 41 27 57% 33 29.92 1015.0
11 12:56 W 18 G 24 10.00 Overcast OVC060 45 24.1 46 37.9 44% 38 29.89 1013.9
11 11:56 W 16 G 28 10.00 A Few Clouds FEW055 45 24.1 44% 38 29.91 1014.4
11 10:56 W 15 G 23 10.00 Fair CLR 44.1 24.1 45% 38 29.93 1015.1
11 09:56 W 9 10.00 Fair CLR 43 30 60% 38 29.94 1015.5
11 08:56 W 8 10.00 Fair CLR 39.9 28.9 65% 35 29.94 1015.5
11 07:56 Vrbl 6 10.00 Fair CLR 37.9 30.9 76% 34 29.93 1015.3
11 06:56 NW 8 G 18 10.00 Fair CLR 41 32 46 39.9 70% 36 29.9 1014.3
11 05:56 NW 10 10.00 Overcast OVC100 42.1 35.1 76% 37 29.89 1014.0
11 04:56 NW 9 G 20 10.00 Mostly Cloudy BKN100 BKN110 44.1 37.9 79% 40 29.89 1013.6
11 03:56 NW 12 G 18 10.00 Overcast OVC100 45 45 100% 40 29.86 1012.9
11 02:56 NW 7 8.00 Overcast OVC075 44.6 0 0% 41 29.86 1012.7
11 01:56 W 5 4.00 Overcast with Haze BKN065 OVC090 44.6 0 0% 43 29.84 1012.0
11 00:56 W 3 5.00 Overcast with Haze OVC060 44.6 0 44.1 44.1 0% 29.82 1011.3 0.03
10 23:56 NW 3 6.00 Overcast with Haze BKN002 OVC045 44.6 0 0% 29.82 1011.2
10 22:56 W 5 10.00 Overcast SCT002 OVC060 44.6 0 0% 43 29.83 1011.6 0.01
10 21:56 Calm 7.00 Overcast SCT002 OVC047 44.6 0 0% 29.82 1011.5 0.02
10 20:56 NW 5 2.00 Light Rain OVC002 44.6 0 0% 43 29.84 1012.0 0.02
10 19:56 Calm 3.00 Fog/Mist OVC002 44.6 0 0% 29.84 1012.0
10 18:56 Calm 6.00 Overcast with Haze OVC004 44.6 0 46 44.1 0% 29.86 1012.7 0.77
10 17:56 E 5 5.00 Light Rain OVC006 44.6 0 0% 43 29.88 1013.4
10 16:56 E 8 10.00 Light Rain OVC004 44.6 0 0% 41 29.89 1013.8 0.1
10 15:56 Vrbl 5 1.75 Heavy Rain BKN004 BKN023 OVC032 44.6 0 0% 43 29.95 1015.8 0.31 0.67
10 14:56 NE 3 4.00 Rain OVC006 44.6 0 0% 29.99 1017.1 0.21
10 13:56 Vrbl 3 3.00 Rain OVC004 46.4 0 0% 30.01 1017.9 0.15
10 12:56 Calm 2.50 Light Rain OVC006 46.4 0 46.9 45 0% 30.06 1019.3 0.05 0.18
10 11:56 Vrbl 5 6.00 Light Rain BKN008 BKN019 OVC050 46.4 0 0% 45 30.08 1020.1 0.04
10 10:56 NE 5 3.00 Rain BKN025 OVC031 44.6 0 0% 43 30.14 1022.1 0.06
10 09:56 Calm 5.00 Light Rain OVC029 46.4 0 0% 30.17 1023.1 0.03 0.03
10 08:56 Calm 10.00 Light Rain FEW070 OVC100 46 46 100% 30.17 1023.0
10 07:56 Calm 10.00 Mostly Cloudy BKN120 46 46 100% 30.17 1023.1
10 06:56 Calm 10.00 Mostly Cloudy BKN090 46 46 50 46 100% 30.19 1023.9
10 05:56 E 3 10.00 Mostly Cloudy BKN075 46.4 0 0% 30.17 1023.0
10 04:56 Calm 10.00 Fair CLR 46.4 0 0% 30.17 1023.3
10 03:56 Calm 10.00 Fair CLR 48.2 0 0% 30.17 1022.9
10 02:56 Calm 0.75 Fog/Mist CLR 48.2 0 0% 30.18 1023.5
10 00:56 Calm 1.75 Fog/Mist OVC040 48.2 0 52 46.9 0% 30.16 1022.7
09 23:56 Calm 0.50 Fog CLR 48.2 0 0% 30.13 1021.9
09 22:56 Calm 3.00 Fog/Mist FEW007 50 0 0% 30.13 1021.9
09 21:56 W 3 7.00 Fair CLR 51.8 0 0% 30.13 1021.7
09 20:56 SW 3 8.00 Fair CLR 51.8 0 0% 30.12 1021.4
09 19:56 SW 5 9.00 Fair CLR 51.8 0 0% 30.11 1021.1
09 18:56 SW 6 8.00 Mostly Cloudy SCT013 BKN120 51.8 0 51.1 46.9 0% 30.1 1020.9 0.03
09 17:56 S 3 7.00 Light Rain BKN013 OVC110 50 0 0% 30.09 1020.7 0.01
09 16:56 S 8 4.00 Overcast with Haze BKN005 OVC015 48.2 0 0% 45 30.09 1020.5
09 15:56 S 6 4.00 Overcast with Haze OVC005 48.2 0 0% 46 30.08 1020.3 0.02 0.02
09 14:56 SE 8 4.00 Overcast with Haze OVC005 46.4 0 0% 43 30.09 1020.4
09 13:56 S 7 4.00 Light Rain OVC005 46.4 0 0% 43 30.1 1021.0
09 12:56 S 7 5.00 Fog/Mist OVC007 46.9 46.9 46.9 37.9 100% 44 30.12 1021.5
09 11:56 S 12 8.00 Overcast OVC009 46 46 100% 41 30.14 1022.4
09 10:56 S 10 9.00 Overcast OVC019 46 45 96% 42 30.18 1023.7
09 09:56 S 9 7.00 Overcast FEW008 SCT026 OVC035 45 45 100% 41 30.21 1024.6
09 08:56 S 9 5.00 Overcast with Haze SCT006 OVC031 44.6 0 0% 40 30.22 1025.1
09 07:56 SE 10 2.50 Fog/Mist OVC004 41 0 0% 35 30.22 1025.1
09 06:56 SE 5 5.00 Overcast with Haze OVC006 37.4 0 44.1 37 0% 34 30.25 1026.1
09 05:56 SE 6 7.00 Fair CLR 39.2 0 0% 36 30.23 1025.5
09 04:56 SE 7 9.00 Fair CLR 39.9 39.9 100% 36 30.25 1026.0
09 03:56 S 8 10.00 Fair CLR 41 41 100% 36 30.25 1025.9
09 02:56 SE 7 10.00 Fair CLR 41 39.9 96% 37 30.26 1026.1
09 01:56 S 6 10.00 Fair CLR 43 39 86% 40 30.25 1026.0
09 00:56 S 6 10.00 Mostly Cloudy BKN110 43 37.9 46 39 82% 40 30.24 1025.6
08 23:56 SE 7 10.00 Fair CLR 41 39 93% 37 30.25 1025.9
08 22:56 SE 7 10.00 Fair CLR 41 37.9 89% 37 30.27 1026.7
08 21:56 Calm 10.00 Fair CLR 39 37.9 96% 30.27 1026.6
08 20:56 SE 5 10.00 Fair CLR 41 37.9 89% 38 30.27 1027.0
Date Time (est) 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)