Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Temperature (ºC) Relative Humidity Wind Chill (°C) Heat Index (°C) Pressure Precipitation (cm)
Air Dwpt 6 hour altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
14 00:56 W 15 16.09 Fair CLR 10.6 -1.7 43% 75.72 1011.1
13 23:56 Vrbl 7 16.09 Fair CLR 10 -2.2 43% 9 75.69 1010.6
13 22:56 SW 11 16.09 Fair CLR 11.1 -2.2 40% 75.64 1010.0
13 21:56 SW 13 16.09 Fair CLR 11.1 -2.2 40% 75.62 1009.5
13 20:56 SW 20 G 35 16.09 Fair CLR 11.1 -2.2 40% 75.54 1008.8
13 19:56 S 19 G 30 16.09 Fair CLR 10.6 -2.2 12.8 8.9 41% 75.51 1008.4
13 18:56 S 24 G 37 16.09 Fair CLR 11.1 -2.2 40% 75.49 1008.2
13 17:56 S 26 G 37 16.09 Fair CLR 12.2 -3.3 34% 75.54 1008.8
13 16:56 S 24 G 37 16.09 Fair CLR 12.8 -3.3 33% 75.57 1009.2
13 15:56 S 28 G 48 16.09 Fair CLR 11.1 -3.9 35% 75.67 1010.3
13 14:56 S 33 G 44 16.09 A Few Clouds and Breezy FEW120 9.4 -4.4 38% 6 75.84 1013.1
13 13:56 S 26 G 54 16.09 Fair CLR 8.9 -4.4 9.4 -2.8 39% 6 76.1 1016.3
13 12:56 S 26 G 37 16.09 Mostly Cloudy BKN110 8.9 -3.9 41% 6 76.2 1017.7
13 11:56 S 28 G 41 16.09 Partly Cloudy SCT120 7.8 -4.4 42% 4 76.43 1020.6
13 10:56 S 20 G 41 16.09 Overcast OVC100 6.1 -3.9 49% 3 76.5 1021.6
13 09:56 S 20 G 28 16.09 Mostly Cloudy BKN120 5 -3.3 55% 1 76.58 1022.7
13 08:56 S 13 16.09 Partly Cloudy SCT120 1.7 -2.8 72% -2 76.61 1023.2
13 07:56 SE 6 16.09 Fair CLR -2.8 -4.4 -2.8 -5 89% 76.61 1023.5
13 06:56 SE 7 16.09 Fair CLR -3.9 -5 92% -7 76.61 1023.2
13 05:56 SE 6 16.09 Fair CLR -4.4 -6.1 88% 76.58 1022.9
13 04:56 Calm 16.09 Fair CLR -5 -6.7 88% 76.63 1023.7
13 03:56 Calm 16.09 Fair CLR -4.4 -6.1 88% 76.56 1022.8
13 02:56 Calm 16.09 Fair CLR -3.9 -5.6 88% 76.58 1023.3
13 01:56 Calm 16.09 Fair CLR -3.3 -5.6 4.4 -3.9 84% 76.56 1022.8
13 00:56 SE 6 16.09 Fair CLR -3.3 -5 88% 76.5 1022.1
12 23:56 Calm 16.09 Fair CLR -1.1 -5 75% 76.53 1022.4
12 22:56 Calm 16.09 Fair CLR 0 -6.7 61% 76.53 1022.4
12 21:56 Calm 16.09 Fair CLR 1.7 -9.4 44% 76.56 1022.4
12 20:56 NW 13 16.09 Fair CLR 3.3 -9.4 39% 0 76.48 1021.3
12 19:56 NW 19 G 28 16.09 Fair CLR 3.9 -7.8 6.1 0.6 43% 0 76.35 1019.7
12 18:56 NW 19 G 39 16.09 A Few Clouds FEW065 5 -7.2 41% 2 76.25 1018.2
12 17:56 NW 24 G 31 16.09 Fair CLR 5.6 -4.4 49% 2 76.1 1016.1
12 16:56 NW 15 G 30 16.09 A Few Clouds FEW044 3.9 3.9 100% 1 76.05 1015.5
12 15:56 NW 17 16.09 Mostly Cloudy FEW060 SCT075 BKN120 2 0 0% -2 76.07 1015.7
12 14:56 NW 6 16.09 Overcast BKN080 OVC090 1 0 0% 76.02 1015.1
12 13:56 Calm 16.09 Light Rain FEW021 BKN036 OVC046 1 0 6.7 0 0% 76.05 1015.5 0.1 1.02
12 12:56 Vrbl 11 1.21 Light Snow OVC005 0 0 0% -3 76.07 1015.6 0.18
12 11:56 NW 22 2.01 Light Snow BKN005 OVC011 1 0 0% -4 76.02 1014.9 0.18
12 10:56 NW 19 G 26 8.05 Unknown Precip Fog/Mist BKN009 OVC015 1.7 1.7 100% -2 76.02 1015.1 0.25 0.56
12 09:56 NW 15 14.48 Rain FEW026 BKN070 OVC080 3.9 3.9 100% 1 75.97 1014.3 0.23
12 08:56 Vrbl 11 G 31 12.87 Light Rain SCT017 BKN022 OVC065 5 5 100% 3 75.82 1012.3 0.08
12 07:56 NW 26 G 41 11.27 Light Rain SCT018 SCT024 OVC050 6.7 6.7 20.6 6.7 100% 3 75.69 1010.6 0.1 0.1
12 06:56 NW 22 G 43 16.09 Light Rain FEW023 BKN048 OVC100 10 6.7 80% 7 75.59 1008.7
12 05:56 NW 19 G 37 16.09 Light Rain FEW041 BKN065 OVC090 13.3 10 81% 75.46 1007.0
12 04:56 NW 31 G 48 16.09 Overcast FEW050 OVC070 16.7 13.3 80% 75.31 1005.0
12 03:56 Calm 16.09 Overcast OVC100 17.2 16.7 97% 75.18 1003.3
12 02:56 Calm 16.09 Fair CLR 18.3 15 81% 75.23 1004.1
12 01:56 W 7 16.09 Mostly Cloudy BKN100 20.6 15 23.9 16.1 70% 75.31 1004.9
12 00:56 SW 15 G 26 16.09 Fair CLR 23.9 12.2 48% 25 75.26 1004.2
11 23:56 SW 13 16.09 Fair CLR 23.3 13.3 54% 75.29 1004.6
11 22:56 S 15 16.09 Fair CLR 19.4 18.3 93% 75.34 1005.2
11 21:56 SE 9 6.44 A Few Clouds with Haze FEW110 17 0 0% 75.39 1006.1
11 20:56 Calm 16.09 Fair CLR 17 0 0% 75.44 1006.8
11 19:56 Calm 16.09 Partly Cloudy SCT110 18 0 29.4 17.8 0% 75.49 1007.7 0.51 0.51
11 18:56 W 15 16.09 A Few Clouds FEW110 27.2 14.4 45% 27 75.57 1008.3
11 17:56 S 15 G 31 16.09 Fair CLR 27.8 15 46% 28 75.49 1007.3
11 16:56 S 19 G 31 16.09 Partly Cloudy SCT120 28.3 15 44% 28 75.49 1007.5
11 15:56 S 13 16.09 Fair CLR 28.9 15 43% 29 75.59 1008.7
11 14:56 S 19 16.09 Fair CLR 27.8 15 46% 28 75.69 1010.0
11 13:56 SW 13 16.09 Partly Cloudy SCT110 25 14.4 25 14.4 52% 26 75.82 1011.9
11 12:56 S 13 16.09 Mostly Cloudy FEW044 BKN110 23.9 14.4 55% 25 75.92 1013.0
11 11:56 S 15 16.09 Mostly Cloudy BKN100 22.8 13.9 57% 75.97 1013.8
11 10:56 Calm 16.09 Overcast BKN070 BKN090 OVC110 20.6 13.9 66% 76.02 1014.5
11 09:56 S 7 16.09 Overcast BKN075 OVC120 20 12.8 63% 76.05 1014.7
11 08:56 S 11 16.09 Fair CLR 19.4 12.2 63% 76.02 1014.5
11 07:56 SE 6 16.09 Fair CLR 14.4 11.1 17.8 13.9 81% 76 1014.3
11 06:56 SE 6 16.09 Fair CLR 14.4 11.1 81% 76.02 1014.6
11 05:56 SE 6 16.09 Fair CLR 15 10.6 75% 76.02 1014.7
11 04:56 S 7 16.09 Fair CLR 16.1 10.6 70% 76.02 1014.6
11 03:56 SE 7 16.09 Fair CLR 16.1 10 67% 76.07 1015.0
11 02:56 Calm 16.09 Partly Cloudy SCT110 16.1 9.4 65% 76.1 1015.6
11 01:56 SE 6 16.09 A Few Clouds FEW120 17.8 8.9 22.8 17.2 56% 76.12 1015.8
Date Time (edt) Wind (kph) Vis. (km) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°C) Heat Index (°C) altimeter (cm) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºC) Pressure Precipitation (cm)