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 17:56 Calm 10.00 Overcast BKN021 OVC030 77 75 94% 78 30.03 1018.0
12 16:56 Vrbl 5 10.00 Overcast BKN023 OVC032 77 73.9 90% 78 30.02 1017.6
12 15:56 SE 9 10.00 Overcast BKN023 BKN028 OVC037 78.1 72 82% 80 30.04 1018.4
12 14:56 SE 9 10.00 Overcast OVC023 77 71.1 82% 79 30.07 1019.4
12 13:56 S 9 10.00 Overcast OVC027 79 69.1 80.1 68 72% 82 30.08 1019.7
12 12:56 Calm 10.00 Overcast BKN025 OVC039 80.1 69.1 69% 83 30.09 1020.1
12 11:56 Vrbl 6 10.00 Overcast OVC035 77 66.9 71% 79 30.11 1020.6
12 10:56 SE 14 10.00 Overcast BKN037 BKN044 OVC070 75 64.9 71% 77 30.12 1020.9
12 09:56 Vrbl 6 10.00 Overcast FEW038 OVC060 72 71.1 97% 30.11 1020.7
12 08:56 Calm 10.00 Overcast OVC040 69.1 69.1 100% 30.12 1020.8
12 07:56 Calm 10.00 Overcast OVC040 68 0 68 63 0% 30.1 1020.5
12 06:56 Calm 10.00 Overcast OVC044 66.2 0 0% 30.09 1019.9
12 05:56 Calm 10.00 Overcast OVC050 66.2 0 0% 30.08 1019.6
12 04:56 Calm 10.00 Overcast OVC050 66.2 0 0% 30.07 1019.4
12 03:56 Calm 10.00 A Few Clouds FEW055 64.4 0 0% 30.07 1019.5
12 02:56 Calm 10.00 Fair CLR 62.6 0 0% 30.07 1019.4
12 01:56 Calm 9.00 Fair CLR 62.6 0 71.1 63 0% 30.06 1019.0
12 00:56 Calm 10.00 Fair CLR 64.4 0 0% 30.08 1019.5
11 23:56 Calm 10.00 Fair CLR 64.9 64.9 100% 30.07 1019.5
11 22:56 Calm 10.00 Fair CLR 66 66 100% 30.08 1019.6
11 21:56 Calm 10.00 Fair CLR 66.9 66.9 100% 30.07 1019.4
11 20:56 Calm 10.00 Fair CLR 69.1 69.1 100% 30.06 1018.8
11 19:56 SE 3 10.00 Fair CLR 71.1 69.1 80.1 71.1 94% 30.02 1017.8
11 18:56 Calm 10.00 Fair CLR 75 66 74% 76 30.01 1017.3
11 17:56 Calm 10.00 Fair CLR 77 66 69% 79 30.02 1017.3
11 16:56 Calm 10.00 Partly Cloudy SCT085 79 66 65% 81 30.01 1017.0
11 15:56 Calm 10.00 Overcast FEW028 OVC085 78.1 68 71% 80 30.02 1017.5
11 14:56 Calm 10.00 Mostly Cloudy SCT024 BKN080 79 69.1 72% 82 30.04 1018.0
11 13:56 Calm 10.00 Partly Cloudy SCT022 77 69.1 77 69.1 77% 79 30.04 1018.1 0.01
11 12:56 Calm 10.00 Mostly Cloudy BKN075 BKN095 75.9 68 77% 77 30.05 1018.4
11 11:56 Vrbl 5 10.00 Overcast FEW018 OVC080 75.9 68 77% 77 30.06 1018.7 0.01
11 10:56 Calm 10.00 Overcast FEW013 BKN042 OVC075 73 73 100% 30.06 1018.8
11 09:56 Calm 10.00 Overcast OVC075 73 73 100% 30.03 1017.9
11 08:56 Calm 10.00 Overcast FEW004 OVC070 69.8 0 0% 30.02 1017.5
11 07:56 Calm 10.00 Mostly Cloudy BKN075 BKN110 69.8 0 75 68 0% 30.01 1017.2 0.28
11 06:56 Calm 4.00 Light Rain Fog/Mist FEW060 BKN080 BKN110 68 68 100% 30 1016.7 0.04
11 05:56 Calm 4.00 Rain BKN060 BKN075 OVC100 69.8 0 0% 29.98 1016.1 0.15
11 04:56 Calm 4.00 Rain BKN070 OVC100 69.8 0 0% 29.98 1016.0 0.07 0.09
11 03:56 NW 6 8.00 Rain SCT080 SCT090 BKN120 72 72 100% 29.98 1016.0 0.02
11 02:56 Calm 10.00 Overcast OVC085 73.9 71.1 91% 29.96 1015.3
11 01:56 Calm 10.00 Overcast OVC095 73 73 78.1 73 100% 29.96 1015.2
11 00:56 Calm 10.00 Overcast OVC100 73.9 71.1 91% 29.97 1015.4
10 23:56 NW 3 10.00 Mostly Cloudy BKN110 75 71.1 88% 75 29.96 1015.1
10 22:56 W 3 3.00 Fog/Mist FEW110 75 71.1 88% 75 29.95 1014.9
10 21:56 Calm 10.00 Fair CLR 75.9 69.1 79% 77 29.95 1014.9
10 20:56 Calm 10.00 Fair CLR 77 69.1 77% 79 29.94 1014.8
10 19:56 NW 3 7.00 Fair CLR 78.1 70 86 78.1 76% 80 29.93 1014.4
10 18:56 W 7 10.00 A Few Clouds FEW080 81 69.1 67% 84 29.93 1014.3
10 17:56 W 7 10.00 Fair CLR 82.9 70 65% 87 29.93 1014.1
10 16:56 W 9 10.00 Overcast FEW037 OVC070 84 71.1 65% 89 29.93 1014.4
10 15:56 W 7 10.00 Overcast FEW038 OVC065 84 71.1 65% 89 29.94 1014.7
10 14:56 W 9 10.00 Overcast FEW038 OVC060 84.9 70 61% 89 29.94 1014.8
10 13:56 NW 9 G 16 10.00 Overcast SCT038 OVC055 84 70 86 73.9 63% 88 29.97 1015.5
10 12:56 W 9 10.00 Partly Cloudy SCT034 84 71.1 65% 89 29.98 1016.1
10 11:56 W 9 10.00 Fair CLR 82 71.1 69% 86 29.99 1016.3
10 10:56 W 7 10.00 Fair CLR 81 70 69% 84 30 1016.5
10 09:56 W 5 10.00 Fair CLR 78.1 69.1 74% 80 29.99 1016.2
10 08:56 W 6 10.00 Fair CLR 75 68 79% 76 29.99 1016.5
10 07:56 W 5 10.00 Partly Cloudy SCT055 73.9 66 75 72 76% 29.99 1016.4
10 06:56 Calm 10.00 Partly Cloudy SCT060 72 64.9 79% 29.98 1016.1
10 05:56 NW 5 10.00 Mostly Cloudy BKN110 72 64.9 79% 29.99 1016.3
10 04:56 SW 3 10.00 Overcast FEW050 OVC100 73 64 74% 29.98 1016.1
10 03:56 SW 5 10.00 Mostly Cloudy BKN090 73 63 71% 29.98 1016.1
10 02:56 Vrbl 3 10.00 Fair CLR 73.9 63 69% 29.99 1016.4
10 01:56 Vrbl 3 10.00 Fair CLR 75 62.1 81 75 64% 77 30.01 1017.1
10 00:56 Vrbl 5 10.00 Fair CLR 75 62.1 64% 77 30.03 1017.7
09 23:56 Vrbl 7 10.00 Fair CLR 77 62.1 60% 79 30.03 1017.7
09 22:56 S 9 10.00 Fair CLR 78.1 63 60% 80 30.02 1017.4
09 21:56 S 6 10.00 Fair CLR 78.1 64.9 64% 80 30.05 1018.3
09 20:56 S 5 10.00 Fair CLR 79 66 65% 81 30.06 1018.8
09 19:56 S 6 10.00 Fair CLR 81 64.9 90 81 58% 83 30.06 1018.6
09 18:56 S 10 10.00 Fair CLR 84 64.9 53% 86 30.06 1018.8
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)