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.
12 08:56 Vrbl 5 10.00 Overcast BKN016 OVC022 75 73 94% 73 30.16 1022.2
12 07:56 Vrbl 5 10.00 Overcast SCT012 OVC110 75 73.9 75 71.1 96% 73 30.14 1021.4
12 06:56 Calm 10.00 Mostly Cloudy FEW010 BKN015 71.6 0 0% 30.12 1020.8
12 05:56 Calm 10.00 Overcast BKN018 OVC027 71.6 0 0% 30.1 1020.0
12 04:56 Calm 10.00 Overcast OVC014 71.6 0 0% 30.09 1019.5
12 03:56 Vrbl 3 10.00 A Few Clouds FEW012 71.6 0 0% 30.07 1019.0
12 02:56 Calm 10.00 A Few Clouds FEW015 71.6 0 0% 30.06 1018.7
12 01:56 Calm 10.00 Overcast OVC021 73.4 0 80.1 73 0% 30.06 1018.6
12 00:56 Calm 10.00 Overcast BKN013 OVC019 73 73 100% 30.06 1018.7
11 23:56 Calm 10.00 Mostly Cloudy BKN017 73.9 73.9 100% 30.05 1018.4
11 22:56 Calm 10.00 Fair CLR 75 73.9 96% 73 30.04 1017.8
11 21:56 Calm 10.00 Partly Cloudy SCT110 75.9 72 88% 76 30.01 1017.1
11 20:56 Vrbl 3 10.00 Thunderstorm in Vicinity FEW037 SCT065 BKN110 78.1 71.1 79% 80 30 1016.6
11 19:56 Calm 10.00 Fair CLR 80.1 77 87.1 80.1 90% 86 29.98 1016.0
11 18:56 Calm 10.00 Partly Cloudy SCT037 82 75.9 82% 89 29.96 1015.4
11 17:56 Calm 10.00 Fair CLR 84 75 74% 92 29.95 1015.0
11 16:56 NW 7 10.00 A Few Clouds FEW036 86 72 63% 92 29.94 1014.7
11 15:56 W 6 8.00 Mostly Cloudy BKN035 86 73 65% 93 29.95 1014.7
11 14:56 W 8 7.00 Partly Cloudy SCT031 84.9 73.9 70% 92 29.96 1015.3
11 13:56 Vrbl 3 10.00 Mostly Cloudy FEW034 SCT044 BKN065 82.9 75 84 73 77% 90 29.97 1015.8
11 12:56 Vrbl 5 10.00 Mostly Cloudy SCT031 BKN040 BKN048 84 72 67% 90 29.99 1016.2
11 11:56 Vrbl 5 10.00 Mostly Cloudy BKN029 82 72 72% 87 29.99 1016.3
11 10:56 Calm 10.00 A Few Clouds FEW024 82 72 72% 87 29.98 1016.1
11 09:56 Calm 10.00 Fair CLR 78.1 73 85% 81 29.98 1016.2
11 08:56 NW 3 10.00 Fair CLR 75.9 73.9 94% 75 29.99 1016.3
11 07:56 Calm 10.00 Fair CLR 73 73 73 68 100% 29.98 1015.9
11 06:56 NW 3 10.00 Fair CLR 69.8 0 0% 29.97 1015.6
11 05:56 Calm 10.00 Partly Cloudy SCT031 68 0 0% 29.95 1014.9
11 04:56 Calm 10.00 Fair CLR 69.8 0 0% 29.93 1014.2
11 03:56 Calm 9.00 Mostly Cloudy BKN120 69.8 0 0% 29.93 1014.2
11 02:56 Calm 10.00 Fair CLR 68 0 0% 29.93 1014.5
11 01:56 Calm 5.00 Fair with Haze CLR 69.8 0 80.1 69.1 0% 29.95 1015.0
11 00:56 Calm 10.00 Fair CLR 69.8 0 0% 29.95 1015.2
10 23:56 Calm 9.00 Fair CLR 69.8 0 0% 29.95 1015.2
10 22:56 Calm 10.00 Fair CLR 71.6 0 0% 29.95 1014.8
10 21:56 Calm 10.00 Fair CLR 71.6 0 0% 29.93 1014.2
10 20:56 Calm 10.00 Fair CLR 75 75 100% 72 29.92 1013.9
10 19:56 Calm 10.00 Fair CLR 80.1 75 82.9 80.1 85% 85 29.93 1014.3
10 18:56 Vrbl 5 10.00 Partly Cloudy SCT100 82.9 73.9 74% 89 29.92 1014.0
10 17:56 NW 3 10.00 Fair CLR 81 75 82% 87 29.91 1013.6
10 16:56 Vrbl 6 10.00 Fair CLR 82 75 79% 89 29.92 1014.1
10 15:56 Calm 10.00 Partly Cloudy FEW037 SCT100 81 73.9 79% 86 29.92 1014.0
10 14:56 SW 3 10.00 A Few Clouds FEW100 81 73.9 79% 86 29.92 1014.1
10 13:56 W 7 10.00 Fair CLR 82 73 84 73.9 74% 87 29.94 1014.7
10 12:56 W 6 10.00 A Few Clouds FEW110 82 73.9 77% 88 29.94 1014.8
10 11:56 W 8 10.00 Partly Cloudy SCT100 81 72 74% 85 29.94 1014.8
10 10:56 Vrbl 6 10.00 Fair CLR 84 73 70% 90 29.94 1014.5
10 09:56 W 6 10.00 Fair CLR 81 73.9 79% 86 29.94 1014.5
10 08:56 W 9 10.00 Fair CLR 78.1 75.9 93% 81 29.93 1014.3
10 07:56 NW 5 10.00 Fair CLR 73.9 73.9 73.9 68 100% 29.93 1014.3
10 06:56 Calm 10.00 Fair CLR 69.8 0 0% 29.9 1013.7
10 05:56 W 5 10.00 Fair CLR 68 0 0% 29.9 1013.7
10 04:56 W 5 10.00 Fair CLR 68 0 0% 29.88 1013.0
10 03:56 W 6 10.00 Fair CLR 69.8 0 0% 29.88 1012.7
10 02:56 W 5 10.00 Fair CLR 69.8 0 0% 29.87 1012.5
10 01:56 Calm 4.00 Fair with Haze CLR 69.8 0 75.9 70 0% 29.87 1012.4
10 00:56 W 3 8.00 Fair CLR 71.6 0 0% 29.89 1012.8
09 23:56 W 3 10.00 Fair CLR 71.6 0 0% 29.89 1013.1
09 22:56 Calm 10.00 Fair CLR 71.6 0 0% 29.9 1013.5
09 21:56 W 5 10.00 Fair CLR 71.6 0 0% 29.89 1013.2
09 20:56 W 3 10.00 A Few Clouds FEW100 73.4 0 0% 29.88 1012.8
09 19:56 Calm 10.00 Fair CLR 75.2 0 88 72 0% 29.87 1012.4 0.57
09 18:56 W 3 10.00 Fair CLR 73.4 0 0% 29.85 1011.6 0.05
09 17:56 W 7 5.00 Light Rain SCT011 BKN075 OVC090 73.4 0 0% 29.89 1013.2 0.05
09 16:56 SW 5 10.00 Thunderstorm in Vicinity Light Rain BKN100 BKN110 73.4 0 0% 29.87 1012.5 0.1 0.47
09 15:56 Calm 6.00 Thunderstorm in Vicinity Light Rain FEW031 BKN080 OVC100 73.4 0 0% 29.89 1013.0 0.37
09 14:56 NW 18 G 29 4.00 Thunderstorm Haze SCT028 BKN038 OVC110 79 72 79% 82 29.92 1013.9
09 13:56 Vrbl 6 10.00 Thunderstorm in Vicinity SCT025 87.1 75 88 75.9 67% 97 29.91 1013.6
09 12:56 S 5 10.00 Overcast OVC017 84 78.1 82% 95 29.93 1014.2
09 11:56 S 10 10.00 Overcast BKN011 OVC031 80.1 79 97% 87 29.95 1015.1
09 10:56 S 6 10.00 Overcast OVC011 79 78.1 97% 83 29.97 1015.5
09 09:56 S 7 10.00 Overcast OVC009 79 79 100% 84 29.97 1015.6
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)