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.
30 10:56 NW 14 G 18 10.00 Fair CLR 75.9 61 60% 78 29.87 1012.2
30 09:56 NW 13 G 21 10.00 Fair CLR 73 59 62% 29.88 1012.6
30 07:56 W 8 10.00 Fair CLR 69.1 60.1 69.1 66 73% 29.86 1012.1
30 06:56 W 8 10.00 Fair CLR 66.9 59 76% 29.85 1011.8
30 05:56 NW 9 10.00 Overcast OVC085 68 60.1 76% 29.83 1011.1
30 04:56 NW 10 10.00 Overcast OVC085 69.1 59 70% 29.81 1010.4
30 03:56 W 8 10.00 Overcast OVC080 68 61 78% 29.81 1010.1
30 02:56 W 7 10.00 Fair CLR 66 63 90% 29.81 1010.4
30 01:56 W 3 10.00 Fair CLR 66.9 63 75 66.9 87% 29.82 1010.6
30 00:56 W 6 10.00 Partly Cloudy SCT080 68 63 84% 29.83 1010.9
29 23:56 NW 3 10.00 Overcast OVC090 71.1 61 71% 29.82 1010.8
29 22:56 Vrbl 6 10.00 Overcast OVC060 73 61 66% 29.82 1010.8
29 21:56 NW 10 10.00 Overcast BKN050 OVC075 73.9 62.1 67% 29.81 1010.1
29 20:56 NW 7 10.00 Overcast OVC060 73.9 62.1 67% 29.79 1009.5
29 19:56 NW 10 10.00 Overcast SCT070 OVC090 73.9 63 81 73 69% 29.77 1008.9
29 18:56 NW 8 10.00 Overcast OVC060 75 63 66% 77 29.75 1008.5
29 17:56 NW 9 10.00 Overcast OVC060 75.9 62.1 62% 78 29.74 1008.2
29 16:56 NW 9 G 18 10.00 Overcast BKN047 OVC065 75.9 62.1 62% 78 29.73 1007.7
29 15:56 NW 12 G 23 10.00 Overcast FEW044 OVC065 81 64 57% 83 29.72 1007.4
29 14:56 W 16 G 24 10.00 Overcast FEW046 OVC060 78.1 63 60% 80 29.72 1007.3
29 13:56 NW 10 G 24 10.00 Mostly Cloudy SCT049 BKN060 78.1 61 81 69.1 56% 80 29.72 1007.4
29 12:56 NW 13 G 20 10.00 Overcast OVC050 77 61 58% 79 29.72 1007.4
29 11:56 NW 10 10.00 Mostly Cloudy BKN041 BKN055 77 62.1 60% 79 29.72 1007.4
29 10:56 NW 9 10.00 Fair CLR 77 64 64% 79 29.72 1007.3
29 09:56 NW 12 G 16 10.00 Fair CLR 75 66.9 76% 76 29.72 1007.3
29 08:56 NW 8 10.00 Fair CLR 72 70 94% 29.71 1007.1
29 07:56 NW 6 10.00 Fair CLR 69.8 0 69.1 64.9 0% 29.69 1006.5 0.01
29 06:56 Vrbl 3 9.00 Fair CLR 66.2 0 0% 29.68 1005.8 0.01
29 05:56 NW 5 9.00 Fair CLR 66.2 0 0% 29.66 1005.2
29 04:56 NW 3 10.00 Fair CLR 66.2 0 0% 29.65 1005.0
29 03:56 NW 3 7.00 Fair CLR 66.2 0 0% 29.65 1004.7
29 02:56 Calm 7.00 Fair CLR 66.2 0 0% 29.65 1004.8
29 01:56 Calm 9.00 Fair CLR 66.2 0 71.1 66.9 0% 29.64 1004.6
29 00:56 Calm 10.00 Fair CLR 68 0 0% 29.64 1004.4
28 23:56 Calm 8.00 A Few Clouds FEW003 68 0 0% 29.64 1004.5
28 22:56 Calm 2.50 Fog/Mist FEW002 66.2 0 0% 29.64 1004.6
28 21:56 Calm 10.00 A Few Clouds FEW006 69.8 0 0% 29.64 1004.6
28 20:56 Calm 10.00 Overcast SCT034 BKN043 OVC049 69.8 0 0% 29.63 1004.3
28 19:56 Calm 10.00 Mostly Cloudy BKN041 BKN049 71.6 0 88 68 0% 29.62 1003.8 0.84
28 18:56 S 3 10.00 Partly Cloudy SCT070 SCT080 69.8 0 0% 29.59 1003.0
28 17:56 Vrbl 6 10.00 Thunderstorm Heavy Rain SCT008 BKN021 OVC100 69.8 0 0% 29.64 1004.7 0.74
28 16:56 S 3 10.00 Thunderstorm in Vicinity Light Rain FEW044 BKN070 BKN100 79 78.1 97% 83 29.57 1002.0 0.1 0.1
28 15:56 S 12 10.00 Mostly Cloudy SCT037 SCT044 BKN055 84.9 71.1 63% 90 29.57 1002.2
28 14:56 S 8 10.00 Mostly Cloudy BKN035 BKN050 BKN110 86 71.1 61% 92 29.62 1003.7
28 13:56 Vrbl 7 10.00 Mostly Cloudy BKN029 82.9 72 84.9 75 70% 88 29.64 1004.4
28 12:56 S 10 10.00 Partly Cloudy FEW023 SCT120 82.9 72 70% 88 29.66 1005.2
28 11:56 S 8 10.00 Partly Cloudy FEW050 SCT110 79 71.1 77% 82 29.7 1006.4
28 10:56 Vrbl 6 10.00 Light Rain FEW031 SCT070 SCT090 78.1 72 82% 80 29.71 1006.7
28 09:56 Vrbl 7 10.00 Fair CLR 78.1 70 76% 80 29.73 1007.5
28 08:56 SW 8 10.00 Fair CLR 78.1 70 76% 80 29.72 1007.2
28 07:56 S 5 10.00 Mostly Cloudy FEW050 BKN120 75 73 75 70 94% 73 29.73 1007.7
28 06:56 S 6 10.00 Fair CLR 72 72 100% 29.72 1007.1
28 05:56 SE 3 10.00 Fair CLR 71.1 71.1 100% 29.73 1007.3
28 04:56 Calm 10.00 Fair CLR 71.1 71.1 100% 29.75 1008.2
28 03:56 S 3 10.00 Fair CLR 73.9 70 88% 29.77 1008.8
28 02:56 SE 3 10.00 Fair CLR 73 71.1 94% 29.79 1009.6
28 01:56 SE 3 10.00 Fair CLR 75 70 79 73 84% 75 29.81 1010.2
28 00:56 SE 3 10.00 Fair CLR 75 69.1 82% 75 29.81 1010.0
27 23:56 SE 3 10.00 Fair CLR 75 70 84% 75 29.82 1010.4
27 22:56 Calm 10.00 Fair CLR 73.9 71.1 91% 29.81 1010.1
27 21:56 SE 5 10.00 Fair CLR 75.9 69.1 79% 77 29.81 1010.3
27 20:56 SE 5 10.00 Fair CLR 75.9 68 77% 77 29.82 1010.5
27 19:56 Calm 10.00 Fair CLR 79 64.9 86 79 62% 81 29.82 1010.4
27 18:56 NW 3 10.00 Fair CLR 84 66.9 57% 87 29.82 1010.7
27 17:56 NW 6 10.00 A Few Clouds FEW047 84 66.9 57% 87 29.82 1010.6
27 16:56 W 3 10.00 Partly Cloudy SCT047 84 68 59% 87 29.82 1010.5
27 15:56 W 7 10.00 Fair CLR 84.9 68 57% 88 29.82 1010.5
27 14:56 Vrbl 5 10.00 Fair CLR 84 66 55% 86 29.85 1011.6
27 13:56 Vrbl 3 10.00 Fair CLR 84.9 68 84.9 71.1 57% 88 29.86 1012.1
27 12:56 NW 5 10.00 Mostly Cloudy BKN037 82 68 63% 85 29.88 1012.6
27 11:56 Vrbl 3 10.00 A Few Clouds FEW095 82 68 63% 85 29.89 1013.0
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)