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.
17 06:56 Calm 10.00 Fair CLR 59 0 0% 30.09 1020.0
17 05:56 Calm 10.00 Fair CLR 59 0 0% 30.06 1019.1
17 04:56 Calm 10.00 Fair CLR 59 0 0% 30.06 1019.0
17 03:56 Calm 10.00 Fair CLR 60.8 0 0% 30.04 1018.4
17 02:56 Calm 10.00 Fair CLR 61 61 100% 30.04 1018.4
17 01:56 Calm 6.00 Fog/Mist CLR 63 63 73.9 63 100% 30.03 1018.1
17 00:56 Calm 10.00 Partly Cloudy SCT060 64.9 62.1 90% 30.03 1017.9
16 23:56 Calm 10.00 Mostly Cloudy BKN060 66 62.1 87% 30.03 1017.9
16 22:56 Calm 10.00 Fair CLR 66.9 60.1 79% 30.01 1017.4
16 21:56 W 5 10.00 Fair CLR 71.1 59 66% 30.01 1017.2
16 20:56 W 3 10.00 Overcast OVC100 73 59 62% 30 1016.9
16 19:56 W 8 10.00 Overcast BKN075 OVC090 73.9 57 84.9 73.9 56% 30 1016.9
16 18:56 W 10 10.00 Mostly Cloudy BKN100 77 57 50% 79 30 1017.0
16 17:56 W 8 10.00 Overcast OVC075 80.1 53.1 39% 80 30.02 1017.6
16 16:56 S 9 10.00 Partly Cloudy SCT085 82.9 52 34% 82 30.01 1017.1
16 15:56 S 8 10.00 Mostly Cloudy FEW070 BKN090 82.9 50 32% 81 30.02 1017.6
16 14:56 SW 8 10.00 A Few Clouds FEW080 82.9 48.9 31% 81 30.04 1018.1
16 13:56 SW 9 10.00 Fair CLR 81 45 81 61 28% 80 30.06 1019.1
16 12:56 Vrbl 7 10.00 Fair CLR 79 48.9 35% 79 30.08 1019.7
16 11:56 SW 7 10.00 Fair CLR 77 48.9 37% 78 30.1 1020.3
16 10:56 S 6 10.00 Fair CLR 72 51.1 48% 30.12 1021.2
16 09:56 S 6 10.00 Fair CLR 69.1 50 51% 30.13 1021.6
16 08:56 S 6 10.00 Fair CLR 64.9 48.9 56% 30.14 1021.7
16 07:56 S 3 10.00 Fair CLR 61 50 61 46.9 67% 30.14 1021.9
16 06:56 Calm 10.00 Fair CLR 48.2 0 0% 30.13 1021.6
16 05:56 Calm 10.00 Fair CLR 46.4 0 0% 30.12 1021.2
16 04:56 Calm 10.00 Fair CLR 48.9 48.9 100% 30.1 1020.7
16 03:56 Calm 10.00 Fair CLR 50 50 100% 30.1 1020.5
16 02:56 Calm 10.00 Fair CLR 48.9 48.9 100% 30.1 1020.5
16 01:56 Calm 10.00 Fair CLR 51.1 51.1 66 50 100% 30.1 1020.7
16 00:56 Calm 10.00 Fair CLR 52 50 93% 30.1 1020.5
15 23:56 Calm 10.00 Fair CLR 53.1 51.1 93% 30.09 1020.3
15 22:56 Calm 10.00 Fair CLR 55 48 77% 30.09 1020.2
15 21:56 Calm 10.00 Fair CLR 55.9 50 81% 30.08 1019.9
15 20:56 Calm 10.00 Fair CLR 60.1 46 60% 30.05 1018.9
15 19:56 Calm 10.00 Fair CLR 64.9 45 71.1 64.9 49% 30.03 1018.3
15 18:56 Calm 10.00 Fair CLR 68 45 44% 30.02 1017.7
15 17:56 NW 5 10.00 Fair CLR 70 45 41% 30.01 1017.4
15 16:56 W 10 10.00 A Few Clouds FEW060 70 45 41% 30 1017.2
15 15:56 W 6 G 16 10.00 Fair CLR 69.1 44.1 41% 30 1017.0
15 14:56 W 8 10.00 Partly Cloudy SCT055 68 44.1 42% 30.02 1017.8
15 13:56 NW 15 G 22 10.00 A Few Clouds FEW050 66 44.1 66 54 45% 30.02 1017.8
15 12:56 NW 10 G 20 10.00 Mostly Cloudy BKN046 64.9 44.1 47% 30.02 1017.9
15 11:56 NW 9 10.00 Partly Cloudy SCT046 63 43 48% 30.01 1017.4
15 10:56 NW 12 10.00 Partly Cloudy SCT044 61 42.1 50% 30.01 1017.5
15 09:56 Vrbl 7 10.00 Fair CLR 59 42.1 54% 30 1017.3
15 08:56 NW 12 G 18 10.00 Overcast OVC037 57 42.1 58% 30.01 1017.7
15 07:56 NW 12 G 17 10.00 Mostly Cloudy BKN042 BKN080 54 42.1 54 50 64% 29.99 1017.0
15 06:56 NW 5 10.00 Overcast BKN040 OVC080 51.1 42.1 71% 29.97 1016.2
15 05:56 NW 6 10.00 Overcast OVC085 51.1 42.1 71% 29.93 1014.9
15 04:56 Vrbl 6 10.00 Overcast OVC065 51.1 42.1 71% 29.91 1014.3
15 03:56 NW 8 10.00 Overcast FEW030 OVC037 51.1 43 74% 29.91 1014.2
15 02:56 NW 8 10.00 Overcast OVC034 51.1 43 74% 29.91 1014.1
15 01:56 NW 5 10.00 Overcast BKN038 OVC090 50 43 54 50 77% 49 29.91 1014.4
15 00:56 NW 7 10.00 Overcast BKN038 OVC110 50 43 77% 48 29.92 1014.7
14 23:56 NW 8 10.00 Overcast BKN040 OVC110 50 42.1 74% 47 29.92 1014.6
14 22:56 NW 7 10.00 Overcast OVC034 51.1 41 69% 29.92 1014.7
14 21:56 W 13 G 17 10.00 Overcast OVC036 52 41 66% 29.92 1014.6
14 20:56 NW 8 10.00 Overcast OVC044 53.1 41 64% 29.9 1013.8
14 19:56 NW 10 G 17 10.00 Overcast OVC050 54 39.9 61 54 59% 29.89 1013.4
14 18:56 NW 9 10.00 Overcast OVC050 55 39.9 57% 29.87 1012.7
14 17:56 NW 10 G 22 10.00 Overcast FEW049 BKN060 OVC075 55.9 41 57% 29.86 1012.5
14 16:56 NW 12 G 18 10.00 Overcast OVC055 57 39.9 53% 29.85 1012.2
14 15:56 NW 12 G 17 10.00 Overcast BKN049 OVC060 57 39.9 53% 29.85 1012.2
14 14:56 W 10 G 17 10.00 Overcast OVC050 59 42.1 54% 29.85 1012.2
14 13:56 W 14 G 22 10.00 Overcast OVC047 57 39.9 61 52 53% 29.85 1012.3
14 12:56 NW 13 G 21 10.00 Overcast BKN040 OVC050 55.9 42.1 60% 29.86 1012.5
14 11:56 NW 12 G 24 10.00 Mostly Cloudy BKN043 60.1 41 50% 29.86 1012.3
14 10:56 NW 20 G 24 10.00 Mostly Cloudy BKN037 59 43 56% 29.86 1012.2
14 09:56 NW 9 G 21 10.00 Fair CLR 57 43 60% 29.86 1012.5
14 08:56 Vrbl 7 10.00 Fair CLR 55 46 72% 29.86 1012.5
14 07:56 NW 6 10.00 Overcast SCT070 OVC085 52 52 52 50 100% 29.85 1011.9 0.01
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)