Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
08 06:56 Calm 10.00 Fair CLR 41 41 100% 29.98 1016.7
08 05:56 Calm 10.00 Fair CLR 39.9 37.9 93% 29.97 1016.3
08 04:56 Calm 10.00 Fair CLR 44.1 34 68% 29.96 1015.9
08 03:56 NW 3 10.00 Fair CLR 44.1 39 83% 29.95 1015.5
08 02:56 Calm 10.00 Fair CLR 46.9 37.9 71% 29.93 1014.7
08 01:56 Calm 10.00 Fair CLR 46.4 0 57.9 46 0% 29.91 1014.2
08 00:56 Calm 10.00 Fair CLR 46.9 46.9 100% 29.9 1013.9
07 23:56 Calm 10.00 A Few Clouds FEW085 48.9 48 97% 29.88 1013.2
07 22:56 Calm 10.00 Fair CLR 52 46 80% 29.87 1013.0
07 21:56 S 5 10.00 Overcast OVC090 54 45 72% 29.87 1012.7
07 20:56 S 7 10.00 A Few Clouds FEW100 55 44.1 67% 29.85 1012.1
07 19:56 S 7 10.00 Mostly Cloudy BKN085 57.9 42.1 68 57.9 56% 29.82 1011.1
07 18:56 S 12 10.00 A Few Clouds FEW090 60.1 43 53% 29.8 1010.3
07 17:56 Vrbl 3 10.00 Fair CLR 66 35.1 32% 29.78 1009.6
07 16:56 Vrbl 5 10.00 Partly Cloudy SCT075 66 35.1 32% 29.79 1010.1
07 15:56 Calm 10.00 Fair CLR 66 35.1 32% 29.79 1010.0
07 14:56 Vrbl 5 9.00 Fair CLR 64.9 36 34% 29.82 1010.9
07 13:56 Vrbl 7 10.00 A Few Clouds FEW065 64.9 37.9 64.9 51.1 37% 29.83 1011.3
07 12:56 Vrbl 7 10.00 A Few Clouds FEW100 63 37.9 40% 29.86 1012.2
07 11:56 Vrbl 3 10.00 A Few Clouds FEW100 60.1 37 42% 29.89 1013.3
07 10:56 NW 3 10.00 Overcast OVC070 54 37.9 55% 29.91 1014.0
07 09:56 Calm 10.00 Overcast OVC070 53.1 43 69% 29.92 1014.5
07 08:56 NW 3 10.00 Overcast OVC060 52 45 77% 29.93 1014.8
07 07:56 Calm 10.00 Overcast OVC055 51.1 51.1 55 51.1 100% 29.92 1014.4 0.03
07 06:56 Calm 10.00 Overcast OVC050 51.8 0 0% 29.91 1014.2
07 05:56 Calm 10.00 Overcast OVC048 51.8 0 0% 29.89 1013.5
07 04:56 Calm 10.00 Overcast OVC046 53.6 0 0% 29.89 1013.5 0.03
07 03:56 Calm 10.00 Overcast OVC042 53.6 0 0% 29.87 1012.6 0.01
07 02:56 Vrbl 3 9.00 Light Rain OVC040 53.6 0 0% 29.86 1012.5 0.02
07 01:56 Calm 10.00 Overcast OVC036 55.4 0 68 55 0% 29.87 1012.7 0.01 0.04
07 00:56 Calm 10.00 Light Rain OVC036 55.4 0 0% 29.86 1012.4 0.02
06 23:56 Vrbl 6 10.00 Light Rain OVC036 57.9 57.9 100% 29.86 1012.5 0.01
06 22:56 Vrbl 5 10.00 Overcast OVC032 61 57.9 90% 29.84 1011.9
06 21:56 NW 9 10.00 Overcast OVC028 62.1 57.9 86% 29.83 1011.5
06 20:56 Vrbl 6 10.00 Overcast OVC024 64 64 100% 29.84 1011.7
06 19:56 W 3 10.00 Overcast OVC022 68 64 72 66 87% 29.81 1010.5
06 18:56 Vrbl 3 10.00 Overcast OVC024 69.1 64 84% 29.79 1009.9
06 17:56 SW 7 10.00 Overcast OVC022 69.1 63 81% 29.79 1009.8
06 16:56 SW 8 10.00 Mostly Cloudy BKN024 BKN028 BKN090 71.1 62.1 73% 29.78 1009.2
06 15:56 SW 9 10.00 Mostly Cloudy BKN022 BKN085 70 61 73% 29.78 1009.3
06 14:56 SW 9 10.00 Mostly Cloudy BKN018 69.1 61 76% 29.79 1009.6
06 13:56 SW 13 G 17 10.00 Overcast OVC016 66.9 62.1 66.9 60.1 84% 29.8 1010.0 0.16
06 12:56 SW 10 G 17 10.00 Overcast OVC012 64 64 100% 29.81 1010.4
06 11:56 SW 8 G 16 10.00 Overcast OVC010 62.1 62.1 100% 29.82 1010.7
06 10:56 S 8 G 18 10.00 Light Rain OVC010 60.8 0 0% 29.82 1011.0 0.04 0.16
06 09:56 S 10 G 16 10.00 Rain BKN012 OVC065 60.8 0 0% 29.83 1011.1 0.07
06 08:56 S 7 10.00 Light Rain FEW055 SCT070 OVC095 60.8 0 0% 29.84 1011.4 0.05
06 07:56 SW 7 9.00 Light Rain FEW070 OVC100 62.1 61 71.1 62.1 96% 29.85 1011.8 0.01 0.01
06 06:56 S 9 G 16 10.00 Light Rain BKN110 64.9 55 70% 29.82 1010.8
06 05:56 S 10 G 17 10.00 Light Rain BKN100 BKN120 66 54 65% 29.82 1010.6
06 04:56 S 13 G 17 10.00 Fair CLR 66 53.1 63% 29.82 1010.7
06 03:56 S 10 G 18 10.00 A Few Clouds FEW100 68 52 57% 29.82 1010.8
06 02:56 Vrbl 7 G 17 10.00 Partly Cloudy SCT100 69.1 52 55% 29.83 1011.0
06 01:56 SW 14 G 17 10.00 Fair CLR 71.1 51.1 77 70 49% 29.84 1011.4
06 00:56 S 9 G 23 10.00 Fair CLR 71.1 51.1 49% 29.86 1011.9
05 23:56 S 13 G 20 10.00 Fair CLR 72 48.9 44% 29.86 1011.8
05 22:56 S 8 G 18 10.00 Fair CLR 73 46.9 40% 29.85 1011.8
05 21:56 S 7 10.00 Fair CLR 73.9 45 36% 29.85 1011.8
05 20:56 S 7 10.00 Fair CLR 75 42.1 31% 77 29.84 1011.4
05 19:56 S 9 G 16 10.00 Fair CLR 77 42.1 84.9 77 29% 78 29.82 1010.8
05 18:56 SW 8 10.00 Fair CLR 80.1 42.1 26% 79 29.82 1010.7
05 17:56 S 13 G 21 10.00 Fair CLR 81 43 26% 80 29.82 1010.7
05 16:56 SW 13 G 23 10.00 Fair CLR 82.9 43 24% 81 29.81 1010.4
05 15:56 S 15 G 24 10.00 Fair CLR 84 43 24% 81 29.82 1010.7
05 14:56 S 18 G 31 10.00 Fair CLR 82.9 43 24% 81 29.84 1011.4
05 13:56 S 13 G 23 10.00 Fair CLR 82.9 46 82.9 64 27% 81 29.86 1012.0
05 12:56 SW 13 G 17 10.00 Fair CLR 81 46 29% 80 29.88 1012.8
05 11:56 S 9 10.00 Fair CLR 79 50 36% 79 29.9 1013.5
05 10:56 S 8 10.00 Fair CLR 77 51.1 40% 78 29.9 1013.4
05 09:56 SW 8 10.00 Fair CLR 73.9 48.9 41% 29.9 1013.6
05 08:56 SW 6 10.00 Fair CLR 68 46.9 47% 29.91 1013.8
05 07:56 SW 5 10.00 Fair CLR 64 46 64 59 52% 29.91 1013.8
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)