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.
18 06:56 Calm 16.09 Fair CLR 1.7 1.7 100% 77.6 1036.3
18 05:56 Calm 16.09 Fair CLR 2.2 0.6 89% 77.52 1035.4
18 04:56 Calm 16.09 Fair CLR 2.2 0.6 89% 77.47 1034.7
18 03:56 Calm 16.09 Fair CLR 3.9 -0.6 73% 77.47 1034.4
18 02:56 Calm 16.09 Fair CLR 3.9 -0.6 73% 77.44 1034.2
18 01:56 Calm 16.09 Fair CLR 3.9 0 7.2 2.8 76% 77.39 1033.6
18 00:56 Calm 16.09 Fair CLR 3.3 3.3 100% 77.39 1033.4
17 23:56 Calm 16.09 Fair CLR 3.3 1.7 89% 77.37 1033.3
17 22:56 Calm 16.09 Fair CLR 5 1.1 76% 77.34 1033.0
17 21:56 Calm 16.09 Fair CLR 5.6 0.6 71% 77.29 1032.2
17 19:56 Calm 16.09 Fair CLR 7.2 0.6 14.4 7.2 63% 77.17 1030.4
17 18:56 Calm 16.09 Fair CLR 8.9 0 54% 77.06 1029.1
17 17:56 Vrbl 6 16.09 Fair CLR 11.7 0.6 47% 76.99 1027.9
17 16:56 Vrbl 6 16.09 Fair CLR 13.3 1.7 46% 76.94 1026.9
17 15:56 N 13 G 30 16.09 Fair CLR 13.9 1.7 44% 76.89 1026.4
17 14:56 NW 13 G 33 11.27 Mostly Cloudy BKN050 13.9 1.7 44% 76.89 1026.3
17 13:56 Vrbl 11 16.09 Mostly Cloudy BKN045 13.9 2.8 13.9 10.6 47% 76.86 1026.0
17 12:56 Vrbl 11 16.09 Mostly Cloudy BKN039 11.1 3.9 61% 76.89 1026.4
17 11:56 Vrbl 11 16.09 Mostly Cloudy BKN043 11.1 4.4 64% 76.86 1026.0
17 10:56 Vrbl 11 16.09 Mostly Cloudy BKN039 BKN120 10.6 5 69% 76.76 1024.7
17 09:56 Vrbl 9 16.09 Partly Cloudy SCT120 10.6 4.4 66% 76.71 1024.0
17 08:56 Vrbl 6 16.09 Overcast OVC036 10.6 6.7 77% 76.58 1022.2
17 07:56 Vrbl 6 16.09 Fair CLR 10.6 7.8 15 10.6 83% 76.48 1020.8 0.05
17 06:56 Vrbl 6 16.09 Overcast FEW024 BKN045 OVC120 11.7 11.7 100% 76.38 1019.6 0.03
17 05:56 Vrbl 7 16.09 Light Rain OVC033 12.2 11.7 97% 76.33 1018.7
17 04:56 Vrbl 6 16.09 Light Rain FEW037 BKN070 OVC100 12.8 12.8 100% 76.17 1016.5 0.03
17 03:56 W 7 16.09 Light Rain SCT060 BKN080 OVC100 12.8 12.8 100% 76.15 1016.2 0.03
17 02:56 NW 15 16.09 Light Rain OVC047 13.9 11.7 87% 76.07 1015.3
17 01:56 NW 7 16.09 Overcast BKN043 OVC100 14.4 11.1 16.7 14.4 81% 76.05 1014.8
17 00:56 NW 11 16.09 Overcast OVC090 15.6 10 70% 76.05 1014.7
16 23:56 NW 19 16.09 Overcast OVC085 16.1 11.1 72% 76 1014.2
16 22:56 NW 13 16.09 Overcast BKN085 OVC110 16.7 11.7 73% 75.95 1013.8
16 21:56 NW 7 16.09 Overcast OVC080 16.1 12.8 81% 75.87 1012.7
16 20:56 NW 9 16.09 Mostly Cloudy SCT070 SCT080 BKN100 16.1 13.9 87% 75.84 1012.6
16 19:56 NW 7 16.09 Mostly Cloudy SCT070 SCT100 BKN120 16.7 16.7 28.3 16.7 100% 75.82 1012.1 0.08 1.17
16 18:56 Vrbl 7 4.83 Heavy Rain Fog/Mist FEW039 BKN060 OVC100 18.3 18.3 100% 75.77 1011.2 1.09
16 17:56 W 6 16.09 Partly Cloudy SCT075 SCT095 25.6 20.6 74% 27 75.54 1008.1
16 16:56 SW 15 16.09 Fair CLR 27.8 21.1 67% 30 75.54 1008.1
16 15:56 SW 13 16.09 Fair CLR 27.8 20.6 65% 30 75.54 1008.0
16 13:56 SW 9 16.09 Fair CLR 26.1 20.6 26.1 16.7 72% 28 75.64 1009.4
16 12:56 S 15 16.09 Partly Cloudy SCT010 23.9 20 79% 24 75.77 1011.1
16 11:56 Vrbl 7 16.09 Overcast OVC006 20.6 20.6 100% 75.84 1012.1
16 10:56 SW 11 16.09 Overcast OVC004 18.9 18.9 100% 75.9 1013.2
16 09:56 S 11 8.05 Overcast with Haze OVC004 17 0 0% 75.97 1014.0
16 08:56 S 9 6.44 Fog/Mist OVC004 17.2 17.2 100% 76.02 1014.7
16 07:56 SW 7 8.05 Overcast with Haze OVC004 17 0 16.7 15.6 0% 76.05 1015.2
16 06:56 Vrbl 11 11.27 Overcast OVC002 16.7 16.7 100% 76.1 1015.8
16 05:56 S 13 4.83 Fog/Mist OVC002 16 0 0% 76.12 1016.2
16 04:56 S 11 2.41 Fog/Mist OVC002 16 0 0% 76.15 1016.4
16 03:56 S 9 2.41 Fog/Mist OVC002 15.6 15.6 100% 76.25 1017.8
16 02:56 SE 7 4.02 Fog/Mist OVC004 15.6 15.6 100% 76.33 1018.9
16 01:56 SE 9 14.48 Overcast OVC004 15 0 15 14.4 0% 76.38 1019.4 0.1
16 00:56 SE 9 8.05 Fog/Mist OVC004 15 15 100% 76.43 1020.1 0.08
15 23:56 SE 7 6.44 Light Rain OVC004 14 0 0% 76.45 1020.7
15 22:56 Calm 9.66 Overcast with Haze SCT004 OVC014 14 0 0% 76.53 1021.7 0.03 0.03
15 21:56 Calm 9.66 Light Rain BKN004 OVC018 14 0 0% 76.56 1022.1
15 20:56 Calm 12.87 Overcast OVC023 14.4 14.4 100% 76.61 1022.6
15 19:56 Calm 16.09 Overcast SCT004 OVC025 14.4 14.4 16.7 13.9 100% 76.63 1023.0 0.03 0.25
15 18:56 Calm 16.09 Light Rain FEW004 OVC029 14 0 0% 76.63 1022.8
15 17:56 Calm 16.09 Overcast OVC037 14.4 14.4 100% 76.63 1023.0 0.18
15 16:56 Vrbl 6 16.09 Light Rain BKN029 OVC048 14.4 14.4 100% 76.63 1022.9 0.05 0.05
15 15:56 Calm 16.09 Overcast SCT030 BKN040 OVC055 16.1 12.8 81% 76.66 1023.1
15 14:56 Calm 16.09 Overcast SCT030 BKN043 OVC055 16.1 12.2 78% 76.68 1023.5
15 13:56 Vrbl 9 16.09 Overcast OVC060 16.1 12.8 18.3 16.1 81% 76.71 1023.8
15 12:56 SE 6 16.09 Light Rain OVC060 16.7 12.8 78% 76.76 1024.4
15 11:56 Calm 16.09 Overcast OVC075 17.2 12.2 73% 76.76 1024.4
15 10:56 Vrbl 6 16.09 Overcast OVC085 17.2 12.2 73% 76.78 1024.7
15 09:56 Vrbl 6 16.09 Mostly Cloudy BKN021 18.3 12.8 70% 76.76 1024.5
15 08:56 Calm 16.09 Overcast OVC080 16.7 12.8 78% 76.73 1024.0
15 07:56 Vrbl 6 16.09 Overcast OVC080 16.1 12.8 20.6 16.1 81% 76.66 1023.2
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)