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.
13 20:56 SW 13 G 22 10.00 Fair CLR 52 28 40% 29.74 1008.8
13 19:56 S 12 G 18 10.00 Fair CLR 51.1 28 55 48 41% 29.73 1008.4
13 18:56 S 15 G 23 10.00 Fair CLR 52 28 40% 29.72 1008.2
13 17:56 S 16 G 23 10.00 Fair CLR 54 26.1 34% 29.74 1008.8
13 16:56 S 15 G 23 10.00 Fair CLR 55 26.1 33% 29.75 1009.2
13 15:56 S 17 G 30 10.00 Fair CLR 52 25 35% 29.79 1010.3
13 14:56 S 21 G 28 10.00 A Few Clouds and Breezy FEW120 48.9 24.1 38% 43 29.86 1013.1
13 13:56 S 16 G 33 10.00 Fair CLR 48 24.1 48.9 27 39% 42 29.96 1016.3
13 12:56 S 16 G 23 10.00 Mostly Cloudy BKN110 48 25 41% 42 30 1017.7
13 11:56 S 17 G 25 10.00 Partly Cloudy SCT120 46 24.1 42% 40 30.09 1020.6
13 10:56 S 13 G 25 10.00 Overcast OVC100 43 25 49% 37 30.12 1021.6
13 09:56 S 13 G 17 10.00 Mostly Cloudy BKN120 41 26.1 55% 34 30.15 1022.7
13 08:56 S 8 10.00 Partly Cloudy SCT120 35.1 27 72% 29 30.16 1023.2
13 07:56 SE 3 10.00 Fair CLR 27 24.1 27 23 89% 30.16 1023.5
13 06:56 SE 5 10.00 Fair CLR 25 23 92% 20 30.16 1023.2
13 05:56 SE 3 10.00 Fair CLR 24.1 21 88% 30.15 1022.9
13 04:56 Calm 10.00 Fair CLR 23 19.9 88% 30.17 1023.7
13 03:56 Calm 10.00 Fair CLR 24.1 21 88% 30.14 1022.8
13 02:56 Calm 10.00 Fair CLR 25 21.9 88% 30.15 1023.3
13 01:56 Calm 10.00 Fair CLR 26.1 21.9 39.9 25 84% 30.14 1022.8
13 00:56 SE 3 10.00 Fair CLR 26.1 23 88% 30.12 1022.1
12 23:56 Calm 10.00 Fair CLR 30 23 75% 30.13 1022.4
12 22:56 Calm 10.00 Fair CLR 32 19.9 61% 30.13 1022.4
12 21:56 Calm 10.00 Fair CLR 35.1 15.1 44% 30.14 1022.4
12 20:56 NW 8 10.00 Fair CLR 37.9 15.1 39% 33 30.11 1021.3
12 19:56 NW 12 G 17 10.00 Fair CLR 39 18 43 33.1 43% 32 30.06 1019.7
12 18:56 NW 12 G 24 10.00 A Few Clouds FEW065 41 19 41% 35 30.02 1018.2
12 17:56 NW 15 G 20 10.00 Fair CLR 42.1 24.1 49% 35 29.96 1016.1
12 16:56 NW 9 G 18 10.00 A Few Clouds FEW044 39 39 100% 33 29.94 1015.5
12 15:56 NW 10 10.00 Mostly Cloudy FEW060 SCT075 BKN120 35.6 0 0% 29 29.95 1015.7
12 14:56 NW 3 10.00 Overcast BKN080 OVC090 33.8 0 0% 29.93 1015.1
12 13:56 Calm 10.00 Light Rain FEW021 BKN036 OVC046 33.8 0 44.1 32 0% 29.94 1015.5 0.04 0.4
12 12:56 Vrbl 7 0.75 Light Snow OVC005 32 0 0% 26 29.95 1015.6 0.07
12 11:56 NW 14 1.25 Light Snow BKN005 OVC011 33.8 0 0% 25 29.93 1014.9 0.07
12 10:56 NW 12 G 16 5.00 Unknown Precip Fog/Mist BKN009 OVC015 35.1 35.1 100% 28 29.93 1015.1 0.1 0.22
12 09:56 NW 9 9.00 Rain FEW026 BKN070 OVC080 39 39 100% 33 29.91 1014.3 0.09
12 08:56 Vrbl 7 G 20 8.00 Light Rain SCT017 BKN022 OVC065 41 41 100% 37 29.85 1012.3 0.03
12 07:56 NW 16 G 25 7.00 Light Rain SCT018 SCT024 OVC050 44.1 44.1 69.1 44.1 100% 37 29.8 1010.6 0.04 0.04
12 06:56 NW 14 G 26 10.00 Light Rain FEW023 BKN048 OVC100 50 44.1 80% 45 29.76 1008.7
12 05:56 NW 12 G 23 10.00 Light Rain FEW041 BKN065 OVC090 55.9 50 81% 29.71 1007.0
12 04:56 NW 20 G 30 10.00 Overcast FEW050 OVC070 62.1 55.9 80% 29.65 1005.0
12 03:56 Calm 10.00 Overcast OVC100 63 62.1 97% 29.6 1003.3
12 02:56 Calm 10.00 Fair CLR 64.9 59 81% 29.62 1004.1
12 01:56 W 5 10.00 Mostly Cloudy BKN100 69.1 59 75 61 70% 29.65 1004.9
12 00:56 SW 9 G 16 10.00 Fair CLR 75 54 48% 78 29.63 1004.2
11 23:56 SW 8 10.00 Fair CLR 73.9 55.9 54% 29.64 1004.6
11 22:56 S 9 10.00 Fair CLR 66.9 64.9 93% 29.66 1005.2
11 21:56 SE 6 4.00 A Few Clouds with Haze FEW110 62.6 0 0% 29.68 1006.1
11 20:56 Calm 10.00 Fair CLR 62.6 0 0% 29.7 1006.8
11 19:56 Calm 10.00 Partly Cloudy SCT110 64.4 0 84.9 64 0% 29.72 1007.7 0.2 0.2
11 18:56 W 9 10.00 A Few Clouds FEW110 81 57.9 45% 81 29.75 1008.3
11 17:56 S 9 G 20 10.00 Fair CLR 82 59 46% 82 29.72 1007.3
11 16:56 S 12 G 20 10.00 Partly Cloudy SCT120 82.9 59 44% 83 29.72 1007.5
11 15:56 S 8 10.00 Fair CLR 84 59 43% 84 29.76 1008.7
11 14:56 S 12 10.00 Fair CLR 82 59 46% 82 29.8 1010.0
11 13:56 SW 8 10.00 Partly Cloudy SCT110 77 57.9 77 57.9 52% 79 29.85 1011.9
11 12:56 S 8 10.00 Mostly Cloudy FEW044 BKN110 75 57.9 55% 78 29.89 1013.0
11 11:56 S 9 10.00 Mostly Cloudy BKN100 73 57 57% 29.91 1013.8
11 10:56 Calm 10.00 Overcast BKN070 BKN090 OVC110 69.1 57 66% 29.93 1014.5
11 09:56 S 5 10.00 Overcast BKN075 OVC120 68 55 63% 29.94 1014.7
11 08:56 S 7 10.00 Fair CLR 66.9 54 63% 29.93 1014.5
11 07:56 SE 3 10.00 Fair CLR 57.9 52 64 57 81% 29.92 1014.3
11 06:56 SE 3 10.00 Fair CLR 57.9 52 81% 29.93 1014.6
11 05:56 SE 3 10.00 Fair CLR 59 51.1 75% 29.93 1014.7
11 04:56 S 5 10.00 Fair CLR 61 51.1 70% 29.93 1014.6
11 03:56 SE 5 10.00 Fair CLR 61 50 67% 29.95 1015.0
11 02:56 Calm 10.00 Partly Cloudy SCT110 61 48.9 65% 29.96 1015.6
11 01:56 SE 3 10.00 A Few Clouds FEW120 64 48 73 63 56% 29.97 1015.8
11 00:56 S 3 10.00 Fair CLR 66.9 46.9 49% 29.98 1016.1
10 23:56 SE 8 10.00 Fair CLR 66.9 46 47% 30 1016.7
10 22:56 SE 7 10.00 Fair CLR 66 46 49% 30 1016.8
10 21:56 SE 6 10.00 Fair CLR 69.1 46 44% 29.99 1016.8
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)