Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (est) 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.
12 08:56 NW 9 10.00 Overcast OVC045 30.9 18 59% 24 30.12 1021.8
12 07:56 Vrbl 5 10.00 Overcast OVC043 30 18 61% 26 30.11 1021.5
12 06:56 Vrbl 7 10.00 Overcast OVC039 30 19 34 30 64% 24 30.09 1020.7
12 05:56 NW 12 G 17 10.00 Overcast OVC041 30.9 19 61% 22 30.07 1020.3
12 04:56 NW 9 G 22 10.00 Overcast OVC037 32 19.9 61% 25 30.06 1019.7
12 03:56 NW 14 G 17 10.00 Overcast OVC035 32 19.9 61% 23 30.05 1019.5
12 02:56 NW 16 G 23 10.00 Overcast OVC037 33.1 19.9 58% 23 30.04 1019.0
12 01:56 NW 8 10.00 Overcast OVC035 33.1 21 61% 27 30.04 1019.1
12 00:56 NW 18 G 26 10.00 Overcast OVC040 34 21 39 34 59% 24 30.03 1018.5
11 23:56 NW 12 G 16 10.00 Overcast OVC038 35.1 21.9 59% 28 30.02 1018.4
11 22:56 NW 9 G 25 10.00 Overcast OVC040 36 21.9 57% 30 30 1017.8
11 21:56 NW 10 G 21 10.00 Overcast OVC041 36 23 59% 29 29.99 1017.4
11 20:56 NW 15 G 28 10.00 Overcast OVC049 37 23 57% 29 29.99 1017.3
11 19:56 NW 13 G 22 10.00 Overcast OVC043 37.9 24.1 57% 31 29.98 1017.0
11 18:56 Vrbl 6 10.00 Overcast OVC049 39 24.1 45 39 55% 35 29.97 1016.6
11 17:56 NW 13 G 22 10.00 Overcast OVC049 39 24.1 55% 32 29.94 1015.8
11 16:56 NW 14 G 24 10.00 Overcast OVC049 41 23 49% 34 29.92 1015.1
11 15:56 NW 12 10.00 Overcast OVC049 42.1 24.1 49% 36 29.89 1013.9
11 14:56 NW 8 10.00 Overcast OVC049 42.1 24.1 49% 38 29.88 1013.7
11 13:56 W 13 G 21 10.00 Partly Cloudy SCT049 44.1 24.1 45% 38 29.86 1013.0
11 12:56 W 13 G 23 10.00 Partly Cloudy SCT045 43 26.1 46 41 51% 37 29.87 1013.3
11 11:56 NW 14 10.00 Overcast OVC045 43 26.1 51% 37 29.88 1013.6
11 10:56 W 14 G 21 10.00 Mostly Cloudy BKN043 44.1 28 53% 38 29.89 1013.8
11 09:56 NW 12 G 18 10.00 Fair CLR 43 28 56% 37 29.88 1013.7
11 08:56 NW 10 G 20 10.00 Fair CLR 41 28.9 62% 35 29.88 1013.6
11 07:56 NW 8 10.00 A Few Clouds FEW039 41 30 65% 36 29.86 1013.1
11 06:56 N 7 10.00 Fair CLR 42.1 30.9 48 37 65% 38 29.84 1012.2
11 05:56 NW 8 10.00 Fair CLR 43 32 65% 39 29.81 1011.3
11 04:56 NW 8 10.00 Fair CLR 45 35.1 68% 41 29.8 1010.5
11 03:56 NW 10 10.00 Fair CLR 46.9 36 66% 43 29.76 1009.5
11 02:56 Calm 10.00 Partly Cloudy FEW046 SCT055 37.9 30.9 76% 29.74 1008.8
11 01:56 Calm 10.00 Overcast SCT046 OVC065 39 28.9 67% 29.73 1008.3
11 00:56 Calm 10.00 Overcast SCT050 BKN060 OVC075 39.9 28 45 39 63% 29.72 1008.1
10 23:56 NW 3 10.00 Overcast BKN055 OVC080 42.1 27 55% 29.73 1008.4
10 22:56 Calm 10.00 Mostly Cloudy BKN060 42.1 26.1 53% 29.74 1008.7
10 21:56 S 3 10.00 Mostly Cloudy BKN065 41 23 49% 29.77 1009.9
10 20:56 S 5 10.00 Fair CLR 41 21 45% 38 29.8 1010.9
10 19:56 SE 8 10.00 Fair CLR 41 21 45% 36 29.83 1011.8
10 18:56 S 3 10.00 Fair CLR 42.1 19.9 46.9 42.1 41% 29.88 1013.7
10 17:56 S 5 10.00 Fair CLR 43 21 42% 41 29.91 1014.6
10 16:56 S 6 10.00 Fair CLR 45 19 35% 42 29.92 1014.9
10 15:56 SE 8 10.00 Fair CLR 44.1 19 37% 40 29.93 1015.5
10 14:56 S 8 10.00 Fair CLR 46 19 34% 42 29.96 1016.3
10 13:56 SE 6 10.00 Fair CLR 44.1 18 35% 41 29.98 1017.0
10 12:56 S 3 10.00 Fair CLR 44.1 16 44.1 26.1 32% 30.02 1018.4
10 11:56 SE 5 10.00 Fair CLR 39 14 36% 36 30.06 1019.8
10 10:56 SE 3 10.00 Fair CLR 37 12.9 37% 30.1 1021.2
10 09:56 SE 3 10.00 Fair CLR 35.1 12 38% 30.12 1022.0
10 08:56 Calm 10.00 A Few Clouds FEW120 30.9 12.9 47% 30.14 1022.7
10 07:56 Calm 10.00 Partly Cloudy SCT120 28 12.9 53% 30.14 1022.8
10 06:56 Calm 10.00 Overcast BKN050 OVC100 27 12.9 28 26.1 55% 30.14 1022.7
10 05:56 E 3 10.00 Overcast OVC055 27 12 53% 30.12 1022.2
10 04:56 Calm 10.00 Overcast OVC055 27 12.9 55% 30.14 1022.7
10 03:56 Calm 10.00 Overcast OVC060 28 15.1 58% 30.13 1022.4
10 02:56 Calm 10.00 Overcast OVC065 27 12.9 55% 30.14 1022.8
10 01:56 Calm 10.00 Overcast OVC065 28 14 56% 30.17 1023.7
10 00:56 Calm 10.00 Overcast OVC070 27 12 28 24.1 53% 30.17 1023.8
09 23:56 SE 3 10.00 Overcast OVC070 27 12 53% 30.2 1024.8
09 22:56 Calm 10.00 Overcast OVC070 26.1 10.9 53% 30.2 1024.9
09 21:56 Calm 10.00 Overcast OVC070 26.1 12.9 57% 30.23 1025.7
09 20:56 Calm 10.00 Overcast OVC070 25 12.9 60% 30.24 1026.5
09 19:56 Calm 10.00 Fair CLR 24.1 10 55% 30.26 1027.1
09 18:56 Calm 10.00 Fair CLR 27 7 35.1 27 43% 30.24 1026.5
09 17:56 W 3 10.00 Fair CLR 28.9 8.1 41% 30.24 1026.4
09 16:56 Calm 10.00 Fair CLR 33.1 3.9 29% 30.23 1026.1
09 15:56 Calm 10.00 Fair CLR 30.9 3.9 31% 30.25 1026.8
09 14:56 Calm 10.00 Fair CLR 34 3 27% 30.28 1027.6
09 13:56 SW 3 10.00 Fair CLR 32 1 26% 30.29 1028.0
09 12:56 Vrbl 3 10.00 Fair CLR 33.1 1 34 6.1 25% 30.31 1028.9
09 11:56 NW 9 10.00 Fair CLR 32 1 26% 25 30.36 1030.4
09 10:56 NW 7 10.00 Fair CLR 30 3 31% 24 30.38 1031.2
09 09:56 NW 8 10.00 Fair CLR 26.1 3 37% 18 30.38 1031.1
Date Time (est) 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)