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 13:56 SW 13 16.09 Fair CLR 18.3 1.7 18.3 7.2 33% 76.02 1014.7
01 12:56 Vrbl 9 16.09 Fair CLR 16.7 1.7 37% 76.05 1015.3
01 11:56 Vrbl 7 16.09 Fair CLR 16.7 2.2 38% 76.1 1015.9
01 10:56 Calm 16.09 Fair CLR 13.9 0.6 41% 76.15 1016.8
01 09:56 Calm 16.09 Fair CLR 12.8 1.1 45% 76.17 1017.0
01 08:56 W 6 16.09 Fair CLR 10 3.3 63% 76.2 1017.4
01 07:56 NW 6 16.09 Fair CLR 6.7 4.4 6.7 2.8 85% 76.2 1017.5
01 06:56 Calm 16.09 Fair CLR 3.9 3.9 100% 76.17 1017.0
01 05:56 Calm 16.09 Fair CLR 3 0 0% 76.15 1017.0
01 04:56 Calm 16.09 Fair CLR 3.3 3.3 100% 76.15 1016.7
01 03:56 Calm 16.09 Fair CLR 4.4 4.4 100% 76.12 1016.5
01 02:56 NW 6 16.09 Fair CLR 4.4 3.3 93% 76.1 1016.1
01 01:56 Calm 16.09 Fair CLR 4.4 4.4 12.2 4.4 100% 76.1 1016.1
01 00:56 NW 9 16.09 Fair CLR 5.6 3.9 89% 4 76.12 1016.2
30 23:56 Calm 16.09 Fair CLR 6.7 2.8 76% 76.1 1016.0
30 22:56 Calm 16.09 Fair CLR 7.8 2.2 68% 76.1 1015.8
30 21:56 Vrbl 6 16.09 Fair CLR 8.9 2.2 63% 76.05 1015.4
30 20:56 Vrbl 7 16.09 Fair CLR 10 1.7 57% 9 76.02 1014.9
30 19:56 NW 19 G 30 16.09 A Few Clouds FEW080 12.2 3.3 19.4 12.2 55% 75.95 1014.0
30 18:56 NW 19 G 31 16.09 Partly Cloudy FEW055 SCT080 14.4 3.9 50% 75.84 1012.7
30 17:56 NW 28 G 37 16.09 A Few Clouds FEW060 17.2 3.9 41% 75.77 1011.4
30 16:56 NW 22 G 37 16.09 Overcast BKN070 OVC085 17.2 2.8 38% 75.72 1010.7
30 15:56 W 28 G 39 16.09 A Few Clouds FEW070 17.8 2.2 35% 75.67 1010.0
30 14:56 W 26 G 33 16.09 Partly Cloudy SCT070 19.4 3.3 35% 75.67 1009.8
30 13:56 W 24 G 43 16.09 A Few Clouds FEW065 18.3 2.8 18.9 10.6 36% 75.67 1010.0
30 12:56 W 26 G 39 16.09 A Few Clouds FEW065 18.3 3.9 39% 75.69 1010.4
30 11:56 W 22 G 37 16.09 Partly Cloudy SCT050 17.2 5.6 47% 75.72 1010.7
30 10:56 NW 20 G 39 16.09 Partly Cloudy SCT048 16.7 6.1 50% 75.74 1011.0
30 09:56 NW 17 G 26 16.09 Fair CLR 15.6 8.3 62% 75.74 1011.2
30 08:56 NW 17 16.09 Fair CLR 12.8 12.8 100% 75.72 1010.9
30 07:56 NW 7 16.09 Fair CLR 11 0 11.1 8.3 0% 75.72 1010.8 0.03
30 06:56 NW 7 16.09 Fair CLR 10 0 0% 9 75.69 1010.5
30 05:56 NW 6 4.02 Fog/Mist CLR 9 0 0% 75.64 1009.8 0.03
30 04:56 W 7 1.21 Fog/Mist VV002 9 0 0% 8 75.64 1009.9
30 03:56 Calm 0.80 Fog BKN002 OVC014 11 0 0% 75.59 1009.2
30 02:56 Calm 0.80 Fog SCT002 BKN009 OVC013 11 0 0% 75.59 1008.9
30 01:56 SE 7 0.80 Fog SCT004 BKN040 11 0 12.8 10.6 0% 75.57 1008.8 0.33
30 00:56 Calm 6.44 Mostly Cloudy with Haze SCT012 BKN023 12 0 0% 75.62 1009.5
29 23:56 Calm 16.09 Overcast OVC010 12 0 0% 75.62 1009.3
29 22:56 SE 7 16.09 Overcast OVC010 13 0 0% 75.64 1009.7 0.1 0.33
29 21:56 SE 11 9.66 Light Rain OVC006 12 0 0% 75.62 1009.5 0.13
29 20:56 SE 26 12.87 Rain BKN006 OVC014 13 0 0% 75.57 1008.9 0.1
29 19:56 SE 17 16.09 Overcast FEW006 BKN010 OVC014 13 0 16.1 12.8 0% 75.59 1009.1 0.03 1.07
29 18:56 SE 13 9.66 Rain SCT004 BKN039 OVC060 13 0 0% 75.59 1009.2 0.81
29 17:56 SE 7 11.27 Rain OVC021 13 0 0% 75.69 1010.5 0.23
29 16:56 SE 17 16.09 Light Rain SCT015 OVC025 14.4 14.4 100% 75.67 1010.0
29 15:56 SE 17 16.09 Overcast OVC017 15.6 13.9 90% 75.72 1010.6
29 14:56 SE 15 16.09 Overcast OVC017 15.6 13.3 86% 75.82 1012.0
29 13:56 SE 15 16.09 Overcast OVC017 15.6 12.8 15.6 11.7 84% 75.92 1013.4
29 12:56 S 15 16.09 Overcast OVC019 15 11.7 81% 75.97 1014.1
29 11:56 SE 15 16.09 Overcast OVC019 14.4 10.6 78% 76.02 1014.9
29 10:56 SE 11 16.09 Overcast OVC019 13.3 9.4 77% 76.1 1015.9
29 09:56 SE 15 16.09 Overcast OVC017 13.3 8.3 72% 76.12 1016.0
29 08:56 SE 13 16.09 Overcast OVC017 12.2 7.8 75% 76.12 1016.2
29 07:56 SE 9 16.09 Overcast OVC017 11.7 7.2 12.2 11.7 74% 76.1 1016.1
29 06:56 SE 9 16.09 Overcast OVC017 11.7 7.2 74% 76.12 1016.3
29 05:56 SE 15 16.09 Overcast OVC017 11.7 6.7 72% 76.12 1016.1
29 04:56 SE 11 16.09 Overcast OVC017 11.7 6.7 72% 76.15 1016.5
29 03:56 Vrbl 6 16.09 Overcast OVC019 11.7 8.3 80% 76.12 1016.2
29 02:56 SE 7 16.09 Overcast OVC019 12.2 8.3 77% 76.15 1016.6
29 01:56 E 11 16.09 Overcast OVC022 12.2 8.3 13.9 12.2 77% 76.23 1017.6
29 00:56 SE 11 16.09 Overcast OVC024 12.8 8.9 77% 76.3 1018.8
28 23:56 SE 7 16.09 Overcast OVC024 12.8 8.9 77% 76.3 1018.6
28 22:56 SE 9 16.09 Overcast OVC028 13.3 8.3 72% 76.35 1019.3
28 21:56 SE 7 16.09 Overcast OVC026 13.3 7.8 70% 76.35 1019.2
28 20:56 Calm 16.09 Overcast OVC026 13.3 8.3 72% 76.28 1018.3
28 19:56 E 6 16.09 Overcast OVC026 13.9 10 15.6 12.8 78% 76.28 1018.4
28 18:56 Calm 16.09 Overcast BKN030 OVC044 15 9.4 69% 76.33 1018.9
28 17:56 E 9 16.09 Overcast OVC032 15 8.3 64% 76.33 1018.8
28 16:56 SE 15 16.09 Overcast BKN032 OVC046 15 7.8 62% 76.33 1019.1
28 15:56 SE 19 16.09 Overcast FEW032 OVC050 14.4 7.2 62% 76.35 1019.4
28 14:56 SE 15 16.09 Overcast FEW032 OVC050 13.9 7.2 64% 76.4 1019.9
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)