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.
20 08:56 Calm 16.09 Overcast OVC110 22.8 22.2 96% 76.17 1016.6
20 07:56 Calm 16.09 Overcast BKN047 BKN100 OVC120 22.2 21.7 22.2 20.6 97% 76.2 1016.7
20 06:56 Calm 16.09 Mostly Cloudy SCT090 BKN120 21 0 0% 76.2 1016.7
20 05:56 Calm 16.09 Overcast OVC050 21.1 21.1 100% 76.17 1016.4
20 04:56 Calm 16.09 Light Rain BKN050 OVC090 22.2 20 87% 76.15 1016.0
20 03:56 Calm 16.09 Overcast OVC055 21.7 21.1 96% 76.17 1016.3
20 02:56 Calm 16.09 Mostly Cloudy BKN120 21.1 21.1 100% 76.2 1016.5
20 01:56 Calm 16.09 Fair CLR 21.1 21.1 25.6 20 100% 76.2 1016.6
20 00:56 Calm 16.09 Fair CLR 20.6 20.6 100% 76.2 1016.9
19 23:56 Calm 16.09 A Few Clouds FEW060 21.1 21.1 100% 76.2 1016.7
19 22:56 Calm 16.09 A Few Clouds FEW060 21.7 21.7 100% 76.15 1016.2
19 21:56 Calm 16.09 Fair CLR 22.2 21.1 94% 76.15 1015.9
19 20:56 Calm 16.09 Fair CLR 23.3 20.6 85% 76.12 1015.9
19 19:56 Calm 16.09 Fair CLR 25.6 19.4 30.6 25.6 69% 27 76.1 1015.6
19 18:56 W 6 16.09 A Few Clouds FEW050 28.3 20 61% 30 76.1 1015.3
19 17:56 W 11 16.09 Partly Cloudy SCT055 29.4 18.9 53% 31 76.1 1015.3
19 15:56 Vrbl 11 16.09 Partly Cloudy SCT055 30 18.3 49% 31 76.07 1015.2
19 14:56 Vrbl 11 16.09 Partly Cloudy SCT055 30 17.8 48% 31 76.12 1015.5
19 13:56 W 13 9.66 Partly Cloudy with Haze SCT050 SCT060 29.4 19.4 29.4 18.9 55% 31 76.15 1015.9
19 12:56 W 15 16.09 Fair CLR 28.9 18.3 53% 30 76.15 1015.9
19 11:56 NW 13 16.09 Fair CLR 27.8 17.8 55% 29 76.15 1016.1
19 10:56 W 15 16.09 Fair CLR 27.2 17.2 54% 28 76.15 1015.9
19 09:56 Calm 16.09 Fair CLR 25 18.3 66% 26 76.12 1015.7
19 08:56 Vrbl 6 16.09 Fair CLR 22.2 18.9 82% 76.12 1016.0
19 07:56 Calm 16.09 Fair CLR 18 0 18.3 16.7 0% 76.17 1016.5
19 06:56 Calm 8.05 Fair with Haze CLR 17 0 0% 76.15 1016.2
19 05:56 Calm 9.66 Fog/Mist CLR 16.7 16.7 100% 76.1 1015.5
19 04:56 Calm 9.66 Fair with Haze CLR 17 0 0% 76.1 1015.4
19 03:56 Calm 6.44 Fair with Haze CLR 18 0 0% 76.07 1015.3
19 02:56 Calm 8.05 Fair with Haze CLR 18 0 0% 76.1 1015.3
19 01:56 Calm 14.48 Fair CLR 18 0 24.4 18.3 0% 76.1 1015.5
19 00:56 Calm 16.09 Fair CLR 19 0 0% 76.1 1015.5
18 23:56 Calm 16.09 Fair CLR 19 0 0% 76.1 1015.5
18 22:56 Calm 16.09 Fair CLR 20 20 100% 76.1 1015.5
18 19:56 Calm 16.09 Fair CLR 25 20 29.4 25 74% 26 76.05 1014.6
18 18:56 Calm 16.09 Fair CLR 27.8 18.9 58% 29 76.02 1014.4
18 17:56 NW 9 16.09 Partly Cloudy SCT080 28.3 18.9 57% 30 76.02 1014.3
18 16:56 NW 13 16.09 A Few Clouds FEW080 28.9 19.4 57% 30 76.02 1014.3
18 15:56 NW 13 16.09 Overcast SCT036 SCT065 OVC090 27.8 20 63% 29 76.02 1014.3
18 14:56 NW 15 16.09 Overcast BKN060 OVC080 28.3 21.7 67% 31 76.05 1014.7
18 13:56 NW 11 16.09 Overcast FEW032 BKN050 OVC080 27.8 22.8 29.4 22.2 74% 31 76.02 1014.4
18 12:56 Vrbl 7 16.09 Mostly Cloudy BKN065 BKN080 27.8 23.3 77% 31 76.05 1014.6
18 11:56 Vrbl 6 16.09 Overcast FEW019 OVC065 26.1 24.4 90% 28 76.1 1015.2
18 10:56 NW 7 16.09 Overcast SCT017 BKN024 OVC033 26.1 23.9 88% 28 76.07 1015.1
18 09:56 Vrbl 6 16.09 Mostly Cloudy FEW013 BKN095 25.6 23.9 90% 27 76.05 1014.7
18 08:56 Calm 16.09 Fair CLR 24.4 24.4 100% 24 76.02 1014.4
18 07:56 Calm 16.09 Fair CLR 22 0 22.2 20.6 0% 76 1014.2
18 06:56 Calm 14.48 Fair CLR 21 0 0% 75.97 1013.8
18 05:56 Calm 12.87 Fair CLR 21 0 0% 75.92 1013.1
18 04:56 Calm 16.09 Fair CLR 21 0 0% 75.9 1012.6
18 03:56 Calm 14.48 Fair CLR 21 0 0% 75.87 1012.3
18 02:56 Calm 12.87 Fair CLR 22 0 0% 75.87 1012.4
18 01:56 Calm 16.09 Fair CLR 22 0 23.9 21.7 0% 75.92 1012.8
18 00:56 Calm 16.09 Fair CLR 22 0 0% 75.92 1013.0
17 23:56 Calm 16.09 Fair CLR 22 0 0% 75.92 1013.0
17 22:56 Calm 16.09 Mostly Cloudy BKN100 22 0 0% 75.92 1013.0
17 21:56 Calm 16.09 Fair CLR 23 0 0% 75.92 1013.1
17 20:56 W 11 16.09 Fair CLR 23.3 23.3 100% 75.87 1012.2
17 19:56 W 9 16.09 A Few Clouds FEW120 24 0 32.8 23.9 0% 75.82 1011.6 0.08
17 18:56 Calm 16.09 Fair CLR 24.4 24.4 100% 24 75.84 1011.9 0.03
17 17:56 Vrbl 7 16.09 Thunderstorm BKN045 BKN055 OVC070 24.4 24.4 100% 24 75.87 1012.5 0.05
17 16:56 W 11 16.09 A Few Clouds FEW048 30.6 23.3 65% 35 75.82 1011.5
17 15:56 Calm 11.27 Overcast BKN044 BKN060 OVC085 31.1 23.9 66% 37 75.82 1011.7
17 14:56 Vrbl 11 16.09 Mostly Cloudy BKN040 BKN075 31.1 23.3 63% 36 75.87 1012.2
17 13:56 W 15 16.09 Overcast BKN039 OVC049 30.6 23.3 31.1 23.3 65% 35 75.9 1012.7
17 12:56 W 15 16.09 Mostly Cloudy SCT034 BKN042 30.6 23.9 67% 36 75.95 1013.3
17 11:56 NW 13 16.09 Mostly Cloudy SCT028 BKN034 29.4 23.3 70% 34 75.97 1013.8
17 10:56 NW 13 16.09 Partly Cloudy SCT022 28.3 24.4 79% 33 76 1013.9
17 09:56 NW 13 16.09 Partly Cloudy FEW016 SCT065 26.7 25 90% 30 75.97 1013.7
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)