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.
01 15:56 W 11 16.09 Mostly Cloudy BKN055 35 24.4 54% 42 76.28 1017.7
01 14:56 W 11 16.09 Mostly Cloudy SCT050 BKN065 34.4 24.4 56% 42 76.3 1018.0
01 13:56 Vrbl 6 16.09 Partly Cloudy SCT042 34.4 25 34.4 25 58% 42 76.33 1018.2
01 12:56 W 6 16.09 Mostly Cloudy BKN040 32.2 24.4 63% 39 76.35 1018.6
01 11:56 NW 7 16.09 Fair CLR 32.2 24.4 63% 39 76.35 1018.6
01 10:56 NW 9 16.09 Fair CLR 31.1 24.4 68% 37 76.35 1018.8
01 09:56 W 7 16.09 Fair CLR 28.9 22.8 70% 32 76.38 1019.1
01 08:56 SW 7 16.09 Fair CLR 26.7 21.1 71% 28 76.4 1019.3
01 07:56 SW 9 16.09 Fair CLR 25 20 25.6 23.3 74% 26 76.4 1019.3
01 06:56 S 6 16.09 Fair CLR 23.9 18.9 74% 25 76.38 1019.2
01 05:56 Calm 16.09 Fair CLR 23.3 18.9 76% 76.38 1019.0
01 04:56 S 6 16.09 Fair CLR 23.3 18.3 74% 76.38 1019.2
01 03:56 Calm 16.09 Fair CLR 23.9 17.8 69% 25 76.38 1018.9
01 02:56 S 7 16.09 A Few Clouds FEW049 24.4 17.8 67% 25 76.38 1019.0
01 01:56 S 9 16.09 A Few Clouds FEW048 25 17.8 29.4 25 64% 26 76.38 1019.1
01 00:56 S 9 16.09 Fair CLR 25.6 17.8 62% 27 76.43 1019.6
30 23:56 S 9 16.09 A Few Clouds FEW055 26.1 17.2 58% 27 76.43 1019.9
30 22:56 S 11 16.09 Mostly Cloudy BKN060 26.7 17.2 56% 27 76.43 1019.9
30 21:56 SE 9 16.09 Fair CLR 27.2 17.2 54% 28 76.38 1019.2
30 20:56 S 15 16.09 Fair CLR 27.8 17.2 53% 28 76.35 1018.6
30 19:56 S 11 16.09 Fair CLR 29.4 18.3 32.8 29.4 51% 30 76.33 1018.5
30 18:56 S 13 16.09 Fair CLR 31.1 19.4 50% 33 76.33 1018.3
30 17:56 S 17 16.09 Fair CLR 31.7 20.6 52% 34 76.38 1019.1
30 16:56 SW 11 16.09 A Few Clouds FEW048 32.2 21.1 52% 35 76.43 1019.7
30 15:56 Vrbl 11 16.09 Fair CLR 32.2 21.1 52% 35 76.45 1020.0
30 14:56 Vrbl 6 16.09 Fair CLR 31.7 20.6 52% 34 76.5 1020.6
30 13:56 S 19 16.09 Fair CLR 31.7 19.4 31.7 23.9 48% 33 76.53 1021.2
30 12:56 SW 13 16.09 Fair CLR 31.1 20 52% 33 76.58 1021.9
30 11:56 SE 9 16.09 Fair CLR 29.4 20 57% 31 76.61 1022.3
30 10:56 S 11 16.09 Fair CLR 28.9 19.4 57% 30 76.63 1022.5
30 09:56 SW 7 16.09 Fair CLR 27.8 21.1 67% 30 76.66 1022.7
30 08:56 S 9 16.09 Fair CLR 25.6 21.1 76% 27 76.66 1023.0
30 07:56 S 7 16.09 Fair CLR 23.9 22.2 23.9 18.9 90% 23 76.66 1022.7
30 06:56 Calm 14.48 Fair CLR 20 0 0% 76.63 1022.6
30 05:56 Calm 9.66 Fair with Haze CLR 19 0 0% 76.61 1022.3
30 04:56 Calm 11.27 Fair CLR 19 0 0% 76.58 1022.0
30 03:56 Calm 16.09 Fair CLR 20 0 0% 76.58 1021.9
30 02:56 SE 7 16.09 Fair CLR 21.1 21.1 100% 76.58 1021.8
30 01:56 SE 7 16.09 Fair CLR 21.1 21.1 26.1 20.6 100% 76.63 1022.3
30 00:56 SE 7 16.09 Fair CLR 21.7 20.6 94% 76.61 1022.2
29 23:56 Calm 16.09 Fair CLR 20.6 20.6 100% 76.61 1022.3
29 22:56 Calm 16.09 Fair CLR 21.7 20.6 94% 76.61 1022.0
29 21:56 SE 7 16.09 Fair CLR 22.8 20 84% 76.56 1021.6
29 20:56 SE 6 16.09 Fair CLR 23.9 18.9 74% 25 76.53 1021.2
29 19:56 Calm 16.09 Mostly Cloudy BKN085 26.1 18.3 31.1 26.1 62% 27 76.53 1021.0
29 18:56 SE 9 16.09 Overcast OVC090 28.3 18.3 55% 29 76.53 1021.0
29 17:56 Vrbl 6 16.09 Partly Cloudy SCT100 29.4 18.3 51% 30 76.53 1021.2
29 16:56 Vrbl 7 16.09 Fair CLR 30 20 55% 32 76.5 1020.7
29 15:56 Vrbl 6 16.09 Mostly Cloudy BKN047 BKN060 28.3 20 61% 30 76.5 1020.8
29 14:56 SE 11 16.09 A Few Clouds FEW050 30 21.1 59% 33 76.5 1020.9
29 13:56 Vrbl 6 16.09 Mostly Cloudy BKN060 29.4 22.2 30 21.7 65% 33 76.53 1021.1
29 12:56 Vrbl 7 16.09 Mostly Cloudy FEW031 BKN060 29.4 21.7 63% 32 76.56 1021.2
29 11:56 Calm 16.09 Partly Cloudy FEW025 SCT060 27.8 21.1 67% 30 76.56 1021.6
29 10:56 Calm 16.09 Overcast SCT016 OVC060 26.1 21.7 77% 28 76.56 1021.5
29 09:56 Vrbl 6 16.09 Overcast OVC055 24.4 23.9 97% 24 76.56 1021.6
29 08:56 Calm 14.48 Overcast OVC049 22 0 0% 76.53 1021.5
29 07:56 Calm 12.87 Overcast OVC045 22 0 21.7 20 0% 76.5 1020.8
29 06:56 Calm 11.27 Overcast OVC047 22 0 0% 76.4 1019.7
29 05:56 Calm 4.83 Fog/Mist OVC045 21 0 0% 76.38 1019.3
29 04:56 Calm 9.66 Overcast with Haze OVC043 21 0 0% 76.3 1018.3
29 03:56 Calm 9.66 Overcast with Haze FEW018 OVC043 21 0 0% 76.3 1018.3
29 02:56 Calm 1.61 Fog/Mist CLR 20 0 0% 76.3 1018.4
29 01:56 Calm 4.83 Fog/Mist BKN021 OVC110 21 0 23.9 21.1 0% 76.3 1018.4
29 00:56 Calm 6.44 Overcast with Haze OVC043 22 0 0% 76.33 1018.7
28 23:56 Calm 9.66 Overcast with Haze OVC043 22 0 0% 76.3 1018.4
28 22:56 Calm 8.05 Partly Cloudy with Haze SCT021 SCT043 21 0 0% 76.3 1018.3
28 21:56 Calm 9.66 Mostly Cloudy with Haze BKN021 22 0 0% 76.3 1018.2
28 20:56 Calm 16.09 Mostly Cloudy BKN070 22 0 0% 76.25 1017.5
28 19:56 SE 6 16.09 Overcast FEW039 SCT046 OVC075 23.3 23.3 26.1 22.8 100% 76.23 1017.3
28 18:56 Calm 16.09 Overcast SCT030 BKN050 OVC080 23.3 23.3 100% 76.2 1017.0
28 17:56 S 7 16.09 Overcast FEW018 BKN031 OVC050 24.4 23.9 97% 24 76.17 1016.6
28 16:56 SE 11 16.09 Overcast SCT015 BKN022 OVC060 25.6 23.9 90% 27 76.2 1016.7
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)