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.
12 20:56 Calm 16.09 Overcast OVC020 23.3 23.3 100% 76.3 1018.3
12 19:56 Calm 16.09 Overcast BKN021 OVC065 23.3 23.3 26.7 23.3 100% 76.3 1018.1
12 18:56 Vrbl 6 16.09 Overcast BKN030 BKN036 OVC060 24.4 23.3 94% 24 76.3 1018.4
12 17:56 Calm 16.09 Overcast BKN021 OVC030 25 23.9 94% 26 76.28 1018.0
12 16:56 Vrbl 7 16.09 Overcast BKN023 OVC032 25 23.3 90% 26 76.25 1017.6
12 15:56 SE 15 16.09 Overcast BKN023 BKN028 OVC037 25.6 22.2 82% 27 76.3 1018.4
12 14:56 SE 15 16.09 Overcast OVC023 25 21.7 82% 26 76.38 1019.4
12 13:56 S 15 16.09 Overcast OVC027 26.1 20.6 26.7 20 72% 28 76.4 1019.7
12 12:56 Calm 16.09 Overcast BKN025 OVC039 26.7 20.6 69% 28 76.43 1020.1
12 11:56 Vrbl 9 16.09 Overcast OVC035 25 19.4 71% 26 76.48 1020.6
12 10:56 SE 22 16.09 Overcast BKN037 BKN044 OVC070 23.9 18.3 71% 25 76.5 1020.9
12 09:56 Vrbl 9 16.09 Overcast FEW038 OVC060 22.2 21.7 97% 76.48 1020.7
12 08:56 Calm 16.09 Overcast OVC040 20.6 20.6 100% 76.5 1020.8
12 07:56 Calm 16.09 Overcast OVC040 20 0 20 17.2 0% 76.45 1020.5
12 06:56 Calm 16.09 Overcast OVC044 19 0 0% 76.43 1019.9
12 05:56 Calm 16.09 Overcast OVC050 19 0 0% 76.4 1019.6
12 04:56 Calm 16.09 Overcast OVC050 19 0 0% 76.38 1019.4
12 03:56 Calm 16.09 A Few Clouds FEW055 18 0 0% 76.38 1019.5
12 02:56 Calm 16.09 Fair CLR 17 0 0% 76.38 1019.4
12 01:56 Calm 14.48 Fair CLR 17 0 21.7 17.2 0% 76.35 1019.0
12 00:56 Calm 16.09 Fair CLR 18 0 0% 76.4 1019.5
11 23:56 Calm 16.09 Fair CLR 18.3 18.3 100% 76.38 1019.5
11 22:56 Calm 16.09 Fair CLR 18.9 18.9 100% 76.4 1019.6
11 21:56 Calm 16.09 Fair CLR 19.4 19.4 100% 76.38 1019.4
11 20:56 Calm 16.09 Fair CLR 20.6 20.6 100% 76.35 1018.8
11 19:56 SE 6 16.09 Fair CLR 21.7 20.6 26.7 21.7 94% 76.25 1017.8
11 18:56 Calm 16.09 Fair CLR 23.9 18.9 74% 25 76.23 1017.3
11 17:56 Calm 16.09 Fair CLR 25 18.9 69% 26 76.25 1017.3
11 16:56 Calm 16.09 Partly Cloudy SCT085 26.1 18.9 65% 27 76.23 1017.0
11 15:56 Calm 16.09 Overcast FEW028 OVC085 25.6 20 71% 27 76.25 1017.5
11 14:56 Calm 16.09 Mostly Cloudy SCT024 BKN080 26.1 20.6 72% 28 76.3 1018.0
11 13:56 Calm 16.09 Partly Cloudy SCT022 25 20.6 25 20.6 77% 26 76.3 1018.1 0.03
11 12:56 Calm 16.09 Mostly Cloudy BKN075 BKN095 24.4 20 77% 25 76.33 1018.4
11 11:56 Vrbl 7 16.09 Overcast FEW018 OVC080 24.4 20 77% 25 76.35 1018.7 0.03
11 10:56 Calm 16.09 Overcast FEW013 BKN042 OVC075 22.8 22.8 100% 76.35 1018.8
11 09:56 Calm 16.09 Overcast OVC075 22.8 22.8 100% 76.28 1017.9
11 08:56 Calm 16.09 Overcast FEW004 OVC070 21 0 0% 76.25 1017.5
11 07:56 Calm 16.09 Mostly Cloudy BKN075 BKN110 21 0 23.9 20 0% 76.23 1017.2 0.71
11 06:56 Calm 6.44 Light Rain Fog/Mist FEW060 BKN080 BKN110 20 20 100% 76.2 1016.7 0.1
11 05:56 Calm 6.44 Rain BKN060 BKN075 OVC100 21 0 0% 76.15 1016.1 0.38
11 04:56 Calm 6.44 Rain BKN070 OVC100 21 0 0% 76.15 1016.0 0.18 0.23
11 03:56 NW 9 12.87 Rain SCT080 SCT090 BKN120 22.2 22.2 100% 76.15 1016.0 0.05
11 02:56 Calm 16.09 Overcast OVC085 23.3 21.7 91% 76.1 1015.3
11 01:56 Calm 16.09 Overcast OVC095 22.8 22.8 25.6 22.8 100% 76.1 1015.2
11 00:56 Calm 16.09 Overcast OVC100 23.3 21.7 91% 76.12 1015.4
10 23:56 NW 6 16.09 Mostly Cloudy BKN110 23.9 21.7 88% 24 76.1 1015.1
10 22:56 W 6 4.83 Fog/Mist FEW110 23.9 21.7 88% 24 76.07 1014.9
10 21:56 Calm 16.09 Fair CLR 24.4 20.6 79% 25 76.07 1014.9
10 20:56 Calm 16.09 Fair CLR 25 20.6 77% 26 76.05 1014.8
10 19:56 NW 6 11.27 Fair CLR 25.6 21.1 30 25.6 76% 27 76.02 1014.4
10 18:56 W 11 16.09 A Few Clouds FEW080 27.2 20.6 67% 29 76.02 1014.3
10 17:56 W 11 16.09 Fair CLR 28.3 21.1 65% 31 76.02 1014.1
10 16:56 W 15 16.09 Overcast FEW037 OVC070 28.9 21.7 65% 32 76.02 1014.4
10 15:56 W 11 16.09 Overcast FEW038 OVC065 28.9 21.7 65% 32 76.05 1014.7
10 14:56 W 15 16.09 Overcast FEW038 OVC060 29.4 21.1 61% 32 76.05 1014.8
10 13:56 NW 15 G 26 16.09 Overcast SCT038 OVC055 28.9 21.1 30 23.3 63% 31 76.12 1015.5
10 12:56 W 15 16.09 Partly Cloudy SCT034 28.9 21.7 65% 32 76.15 1016.1
10 11:56 W 15 16.09 Fair CLR 27.8 21.7 69% 30 76.17 1016.3
10 10:56 W 11 16.09 Fair CLR 27.2 21.1 69% 29 76.2 1016.5
10 09:56 W 7 16.09 Fair CLR 25.6 20.6 74% 27 76.17 1016.2
10 08:56 W 9 16.09 Fair CLR 23.9 20 79% 24 76.17 1016.5
10 07:56 W 7 16.09 Partly Cloudy SCT055 23.3 18.9 23.9 22.2 76% 76.17 1016.4
10 06:56 Calm 16.09 Partly Cloudy SCT060 22.2 18.3 79% 76.15 1016.1
10 05:56 NW 7 16.09 Mostly Cloudy BKN110 22.2 18.3 79% 76.17 1016.3
10 04:56 SW 6 16.09 Overcast FEW050 OVC100 22.8 17.8 74% 76.15 1016.1
10 03:56 SW 7 16.09 Mostly Cloudy BKN090 22.8 17.2 71% 76.15 1016.1
10 02:56 Vrbl 6 16.09 Fair CLR 23.3 17.2 69% 76.17 1016.4
10 01:56 Vrbl 6 16.09 Fair CLR 23.9 16.7 27.2 23.9 64% 25 76.23 1017.1
10 00:56 Vrbl 7 16.09 Fair CLR 23.9 16.7 64% 25 76.28 1017.7
09 23:56 Vrbl 11 16.09 Fair CLR 25 16.7 60% 26 76.28 1017.7
09 22:56 S 15 16.09 Fair CLR 25.6 17.2 60% 27 76.25 1017.4
09 21:56 S 9 16.09 Fair CLR 25.6 18.3 64% 27 76.33 1018.3
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)