Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (est) 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.
28 10:56 W 28 G 41 16.09 Overcast OVC046 1.7 -8.3 48% -4 76.58 1022.8
28 08:56 W 22 G 39 16.09 Fair CLR 1.1 -8.9 48% -4 76.48 1021.4
28 07:56 W 19 G 33 16.09 Fair CLR -0.6 -8.3 56% -5 76.45 1021.1
28 06:56 W 17 16.09 Fair CLR -1.1 -8.9 0.6 -1.7 56% -6 76.43 1020.8
28 05:56 W 15 16.09 Fair CLR -1.7 -9.4 56% -6 76.38 1020.1
28 04:56 W 24 16.09 Fair CLR -1.1 -8.9 56% -7 76.3 1019.3
28 03:56 W 17 G 30 16.09 Fair CLR -1.1 -8.9 56% -6 76.3 1019.1
28 02:56 W 22 G 35 16.09 Partly Cloudy SCT065 -0.6 -8.3 56% -6 76.3 1019.1
28 01:56 W 20 16.09 Mostly Cloudy BKN065 0 -8.3 54% -5 76.3 1019.1
28 00:56 W 15 G 28 16.09 Mostly Cloudy BKN060 0.6 -9.4 2.2 0 48% -3 76.28 1018.9
27 23:56 W 17 16.09 Overcast OVC055 1.1 -8.3 50% -3 76.3 1019.1
27 22:56 W 20 G 31 16.09 Overcast OVC055 1.1 -8.3 50% -3 76.3 1019.1
27 21:56 W 17 G 31 16.09 Overcast OVC055 1.7 -8.9 46% -2 76.33 1019.4
27 20:56 W 22 G 30 16.09 Overcast OVC050 1.7 -8.3 48% -3 76.33 1019.5
27 19:56 NW 22 16.09 Overcast OVC055 1.7 -8.3 48% -3 76.33 1019.5
27 18:56 W 19 G 31 16.09 Overcast OVC050 2.2 -6.7 3.9 2.2 52% -2 76.35 1019.9
27 17:56 W 15 16.09 Overcast SCT047 OVC060 2.2 -6.7 52% -1 76.35 1019.7
27 16:56 NW 22 G 31 16.09 Overcast OVC050 2.8 -7.2 48% -2 76.33 1019.2
27 15:56 W 22 G 33 16.09 Mostly Cloudy BKN050 3.3 -7.2 46% -1 76.3 1019.1
27 14:56 NW 19 G 33 16.09 Mostly Cloudy SCT049 BKN110 3.9 -7.2 45% 0 76.25 1018.3
27 13:56 W 20 16.09 Mostly Cloudy FEW048 BKN110 3.9 -6.7 46% 0 76.25 1018.5
27 12:56 NW 20 G 28 16.09 A Few Clouds FEW120 3.9 -7.2 5.6 1.7 45% 0 76.28 1018.8
27 11:56 NW 19 G 28 16.09 Partly Cloudy SCT120 4.4 -6.7 45% 1 76.28 1018.7
27 10:56 NW 22 G 33 16.09 A Few Clouds FEW120 5.6 -6.7 41% 2 76.3 1018.8
27 08:56 W 17 16.09 Fair CLR 5 -6.1 45% 2 76.23 1017.9
27 07:56 SW 7 16.09 Fair CLR 3.9 -6.1 48% 2 76.28 1018.3
27 06:56 Calm 16.09 Fair CLR 2.8 -6.7 5.6 2.8 50% 76.23 1018.0
27 05:56 W 15 G 28 16.09 Fair CLR 3.9 -7.2 45% 1 76.23 1017.6
27 04:56 W 19 16.09 Fair CLR 4.4 -6.7 45% 1 76.17 1017.2
27 03:56 W 19 G 31 16.09 A Few Clouds FEW055 4.4 -6.7 45% 1 76.15 1016.6
27 02:56 W 26 G 41 16.09 Fair CLR 5 -7.2 41% 1 76.12 1016.4
27 01:56 W 28 G 50 16.09 Fair CLR 5.6 -6.7 41% 1 76.12 1016.2
27 00:56 W 26 G 37 16.09 Fair CLR 5 -6.1 12.8 5 45% 1 76.1 1015.9
26 23:56 NW 31 G 57 16.09 Fair CLR 6.1 -5.6 43% 2 76.07 1015.7
26 22:56 NW 20 G 44 16.09 Fair CLR 7.2 -3.3 48% 4 76 1014.8
26 21:56 NW 24 G 52 16.09 Fair CLR 8.3 -2.8 46% 5 75.95 1013.8
26 20:56 NW 30 G 44 16.09 Fair CLR 9.4 -1.1 48% 6 75.84 1012.6
26 19:56 NW 26 G 33 16.09 Fair CLR 12.2 2.2 51% 75.72 1010.9
26 18:56 NW 20 G 39 16.09 Fair CLR 12.8 5.6 20.6 12.8 62% 75.69 1010.5
26 17:56 W 28 G 44 16.09 Mostly Cloudy SCT070 BKN090 14.4 8.3 67% 75.64 1009.6
26 16:56 W 6 14.48 Overcast OVC070 15 11.1 78% 75.51 1008.2
26 15:56 NW 17 16.09 Light Rain FEW038 BKN050 OVC065 16.1 11.7 75% 75.51 1008.1
26 14:56 SW 15 16.09 Mostly Cloudy SCT049 BKN065 BKN080 20 11.1 57% 75.46 1007.3
26 13:56 SW 11 16.09 Mostly Cloudy FEW026 BKN075 20 13.3 65% 75.49 1007.6
26 12:56 S 7 16.09 A Few Clouds FEW019 18.3 15.6 18.3 11.7 84% 75.57 1008.7
26 11:56 S 9 16.09 Mostly Cloudy BKN007 BKN075 15.6 15.6 100% 75.64 1009.7
26 10:56 SW 9 11.27 Overcast OVC003 14 0 0% 75.74 1011.3
26 09:56 Calm 0.40 Fog SCT003 OVC017 12 0 0% 75.82 1012.5
26 08:56 NW 9 0.80 Fog OVC003 12 0 0% 75.87 1012.9
26 07:56 Calm 8.05 Overcast with Haze OVC005 12 0 0% 75.84 1012.5
26 06:56 Calm 4.83 Fog/Mist OVC005 9 0 10.6 7.2 0% 75.84 1012.5
26 05:56 S 7 4.02 Fog/Mist OVC007 10 0 0% 9 75.82 1012.2
26 04:56 Calm 1.21 Fog/Mist SCT009 OVC085 8 0 0% 75.84 1012.6
26 03:56 Calm 1.61 Fog/Mist SCT070 8 0 0% 75.87 1013.0
26 02:56 Calm 8.05 Light Rain OVC055 9 0 0% 75.92 1013.9
26 01:56 Calm 8.05 Overcast with Haze FEW050 BKN090 OVC100 9 0 0% 75.92 1013.9
26 00:56 SE 6 11.27 Overcast OVC070 8 0 8.9 6.7 0% 76 1014.4
25 23:56 SE 7 8.05 Overcast with Haze OVC080 8 0 0% 7 76.02 1015.0
25 22:56 SE 7 6.44 Fair with Haze CLR 7 0 0% 6 76.05 1015.5
25 21:56 Calm 4.02 Fog/Mist CLR 7 0 0% 76.1 1016.0
25 20:56 SE 6 2.01 Fog/Mist CLR 7 0 0% 76.12 1016.4
25 19:56 SE 6 9.66 Overcast with Haze OVC030 9 0 0% 76.15 1016.9
25 18:56 Calm 6.44 Light Rain BKN010 OVC014 9 0 11.7 8.9 0% 76.2 1017.6 0.08 0.64
25 17:56 Calm 8.05 Light Rain BKN020 OVC027 9 0 0% 76.2 1017.5 0.25
25 16:56 Calm 6.44 Rain OVC028 9 0 0% 76.23 1017.8 0.3
25 15:56 Calm 16.09 Overcast OVC045 11.1 7.8 80% 76.25 1018.1
25 14:56 SE 9 16.09 Overcast OVC048 11.1 7.2 77% 76.33 1018.9
25 13:56 SE 17 16.09 Overcast OVC050 10.6 7.8 83% 76.38 1019.8
25 12:56 SE 15 16.09 Light Rain FEW023 SCT070 OVC100 10 7.2 11.1 7.2 83% 8 76.45 1020.8
25 11:56 S 15 16.09 Overcast BKN025 OVC090 11.1 3.9 61% 76.56 1022.1
Date Time (est) 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)