Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (edt) 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.
21 08:56 S 5 10.00 Overcast OVC011 77 75.9 96% 78 29.85 1011.5
21 07:56 S 7 10.00 Overcast OVC011 77 75.9 77 75 96% 78 29.85 1011.7
21 06:56 S 3 10.00 Overcast OVC011 75.9 75.9 100% 75 29.85 1011.7
21 05:56 S 6 10.00 Overcast OVC015 75.9 75.9 100% 75 29.86 1012.1
21 04:56 SE 7 10.00 Overcast OVC011 75 75 100% 72 29.87 1012.2
21 03:56 SE 9 10.00 A Few Clouds FEW065 75 75 100% 72 29.88 1012.5
21 02:56 SE 9 10.00 Overcast OVC023 75.9 75 97% 75 29.9 1013.3
21 01:56 SE 9 10.00 Overcast BKN017 OVC025 75.9 73.9 82 75 94% 75 29.92 1013.9
21 00:56 SE 8 10.00 Fair CLR 75.9 72 88% 76 29.92 1014.2
20 23:56 SE 9 10.00 Fair CLR 75.9 71.1 85% 76 29.94 1014.5
20 22:56 SE 8 10.00 Fair CLR 75.9 69.1 79% 77 29.95 1015.0
20 21:56 SE 8 10.00 Fair CLR 78.1 64.9 64% 80 29.94 1014.8
20 20:56 S 5 10.00 A Few Clouds FEW060 80.1 64.9 60% 82 29.96 1015.3
20 19:56 S 7 10.00 Fair CLR 82 63 87.1 80.1 53% 83 29.96 1015.3
20 18:56 S 6 10.00 Fair CLR 84 62.1 48% 85 29.95 1015.1
20 17:56 SW 5 10.00 Partly Cloudy SCT055 84 62.1 48% 85 29.96 1015.4
20 16:56 Vrbl 7 10.00 Partly Cloudy SCT055 86 64 48% 87 29.97 1015.6
20 15:56 S 7 10.00 Mostly Cloudy FEW055 BKN065 86 63 46% 87 30 1016.7
20 14:56 SE 9 10.00 Overcast OVC060 82 62.1 51% 83 30.01 1017.1
20 13:56 Vrbl 6 10.00 Overcast OVC055 82 62.1 82.9 66.9 51% 83 30.01 1017.2
20 12:56 Vrbl 7 10.00 Mostly Cloudy BKN055 82.9 62.1 49% 84 30.03 1017.7
20 11:56 Vrbl 5 10.00 Mostly Cloudy BKN055 79 59 50% 80 30.04 1018.2
20 10:56 NE 5 10.00 A Few Clouds FEW065 78.1 62.1 58% 80 30.04 1018.2
20 09:56 Vrbl 3 10.00 Overcast OVC065 73 62.1 69% 30.04 1018.4
20 08:56 Calm 10.00 Mostly Cloudy BKN060 71.1 61 71% 30.03 1018.1
20 07:56 Calm 10.00 Mostly Cloudy BKN065 66.9 60.1 66.9 60.1 79% 30.02 1017.7
20 06:56 Calm 10.00 Overcast OVC060 62.1 62.1 100% 30.01 1017.2
20 05:56 Calm 10.00 Mostly Cloudy BKN060 60.8 0 0% 30 1017.0
20 04:56 Calm 10.00 Fair CLR 60.8 0 0% 29.99 1016.6
20 03:56 Calm 10.00 Partly Cloudy SCT060 SCT070 61 61 100% 29.99 1016.5
20 02:56 Calm 10.00 Fair CLR 62.1 62.1 100% 29.96 1015.8
20 01:56 SE 6 10.00 Fair CLR 64.9 59 75.9 64.9 81% 29.98 1016.1
20 00:56 Calm 10.00 Fair CLR 66.9 57.9 73% 29.99 1016.6
19 23:56 Calm 10.00 A Few Clouds FEW060 68 57.9 70% 29.99 1016.5
19 21:56 Calm 10.00 Fair CLR 69.1 62.1 78% 29.98 1016.0
19 20:56 Calm 10.00 Fair CLR 70 61 73% 29.95 1015.2
19 19:56 Calm 10.00 Fair CLR 75.9 61 84.9 75.9 60% 78 29.94 1014.7
19 18:56 Calm 10.00 Fair CLR 80.1 63 56% 81 29.91 1013.8
19 17:56 Vrbl 6 10.00 Fair CLR 81 63 54% 82 29.91 1013.5
19 16:56 Vrbl 3 10.00 Fair CLR 81 66 61% 83 29.9 1013.2
19 15:56 Vrbl 3 10.00 Fair CLR 82 66 58% 84 29.89 1013.1
19 14:56 Vrbl 7 8.00 Fair CLR 82 66.9 60% 85 29.91 1013.5
19 13:56 Vrbl 7 9.00 A Few Clouds FEW044 84 68 84 75 59% 87 29.91 1013.5
19 12:56 Vrbl 6 8.00 Mostly Cloudy SCT038 BKN046 80.1 68 67% 83 29.92 1014.1
19 11:56 Vrbl 5 9.00 Partly Cloudy FEW032 SCT043 82 68 63% 85 29.92 1013.9
19 10:56 Vrbl 3 9.00 A Few Clouds FEW070 82 70 67% 86 29.91 1013.7
19 09:56 Calm 9.00 Mostly Cloudy BKN080 80.1 72 76% 84 29.91 1013.7
19 08:56 Calm 10.00 A Few Clouds FEW080 78.1 73 85% 81 29.89 1013.1
19 07:56 Calm 10.00 A Few Clouds FEW090 73.9 73.9 73.9 70 100% 29.88 1012.8
19 06:56 Calm 10.00 Fair CLR 69.8 0 0% 29.86 1012.1
19 05:56 W 3 10.00 Fair CLR 71.6 0 0% 29.85 1011.9
19 04:56 NW 3 10.00 Partly Cloudy SCT037 71.6 0 0% 29.83 1010.9
19 03:56 W 6 10.00 Mostly Cloudy BKN055 71.6 0 0% 29.81 1010.4
19 02:56 Calm 8.00 Fair CLR 73.4 0 0% 29.82 1010.5
19 01:56 Calm 10.00 Fair CLR 73.4 0 77 73.9 0% 29.81 1010.1
19 00:56 Calm 10.00 Fair CLR 75.2 0 0% 29.8 1010.1
18 23:56 Calm 9.00 Overcast OVC041 75.2 0 0% 29.81 1010.1
18 22:56 Calm 10.00 Fair CLR 75.2 0 0% 29.81 1010.2
18 21:56 Calm 4.00 Fair with Haze CLR 73.4 0 0% 29.8 1010.1
18 20:56 Calm 6.00 Fair with Haze CLR 73.4 0 0% 29.81 1010.2
18 19:56 Calm 10.00 A Few Clouds FEW044 77 77 95 72 100% 78 29.81 1010.3 0.38
18 18:56 NW 3 8.00 Fair CLR 75.2 0 0% 29.8 1010.2
18 17:56 SW 3 10.00 Fair CLR 75.9 75.9 100% 75 29.79 1009.7 0.01
18 16:56 Calm 7.00 Thunderstorm Light Rain SCT044 SCT060 BKN110 73.4 0 0% 29.88 1012.8 0.37
18 15:56 Calm 5.00 Thunderstorm in Vicinity Light Rain FEW027 SCT048 BKN070 71.6 0 0% 29.85 1011.6 0.37
18 14:56 SW 5 7.00 Thunderstorm FEW045 BKN095 BKN120 90 73.9 59% 99 29.83 1011.1
18 13:56 S 7 5.00 Fair with Haze CLR 93.9 77 93.9 73.9 58% 108 29.85 1011.6
18 12:56 Vrbl 6 5.00 Mostly Cloudy with Haze BKN070 88 75.9 68% 99 29.9 1013.5
18 11:56 S 5 4.00 Fair with Haze CLR 84.9 75.9 75% 94 29.93 1014.4
18 10:56 S 6 4.00 Fair with Haze CLR 82 75.9 82% 89 29.96 1015.1
18 09:56 S 7 4.00 Partly Cloudy with Haze SCT014 80.1 75 85% 85 29.97 1015.7
Date Time (edt) 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)