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.
29 15:56 S 18 G 24 10.00 Fair CLR 62.1 26.1 25% 30.4 1030.9
29 14:56 S 14 G 20 10.00 Fair CLR 60.1 26.1 27% 30.42 1031.9
29 13:56 S 12 G 24 10.00 Fair CLR 57.9 25 59 30.9 28% 30.47 1033.5
29 12:56 SW 12 G 20 10.00 Fair CLR 57 23 27% 30.51 1034.7
29 11:56 S 14 G 23 10.00 Fair CLR 55 23 29% 30.54 1035.8
29 10:56 S 13 G 23 10.00 Fair CLR 52 21.9 31% 30.56 1036.6
29 09:56 SW 14 G 20 10.00 Fair CLR 48 21.9 36% 43 30.58 1037.2
29 08:56 SW 10 10.00 Fair CLR 44.1 21.9 41% 39 30.57 1037.2
29 07:56 SE 5 10.00 Fair CLR 30.9 28 30.9 27 89% 27 30.57 1037.1
29 06:56 Calm 10.00 Fair CLR 28 26.1 92% 30.56 1036.8
29 05:56 Calm 10.00 Fair CLR 28 24.1 85% 30.56 1036.6
29 04:56 Calm 10.00 Fair CLR 28 24.1 85% 30.54 1036.0
29 03:56 Calm 10.00 Fair CLR 28 23 81% 30.54 1036.2
29 02:56 Calm 10.00 Fair CLR 28.9 21.9 75% 30.55 1036.5
29 01:56 Calm 10.00 Fair CLR 28.9 23 43 28.9 78% 30.56 1036.6
29 00:56 Calm 10.00 Fair CLR 30.9 21.9 69% 30.55 1036.5
28 23:56 Calm 10.00 Fair CLR 32 21 64% 30.54 1036.2
28 22:56 Calm 10.00 Fair CLR 34 19 54% 30.54 1036.0
28 21:56 Calm 10.00 Fair CLR 35.1 18 50% 30.54 1036.0
28 20:56 Calm 10.00 Fair CLR 39.9 17.1 40% 30.52 1035.5
28 19:56 NW 5 10.00 Fair CLR 43 12.9 48.9 43 29% 41 30.49 1034.5
28 18:56 NW 8 10.00 Fair CLR 46 12.9 26% 42 30.48 1033.9
28 17:56 W 13 G 17 10.00 Fair CLR 48 14 25% 43 30.46 1033.4
28 16:56 NW 12 G 20 10.00 Fair CLR 46.9 12 24% 42 30.46 1033.4
28 15:56 NW 14 G 21 10.00 Fair CLR 46.9 14 26% 42 30.47 1033.5
28 14:56 NW 13 G 17 10.00 Fair CLR 46.9 16 29% 42 30.49 1034.2
28 13:56 NW 9 G 16 10.00 Fair CLR 46.9 19 46.9 30.9 33% 43 30.5 1034.9
28 12:56 Vrbl 6 G 20 10.00 Fair CLR 44.1 18 35% 41 30.51 1035.1
28 11:56 NW 12 G 21 10.00 Partly Cloudy SCT060 42.1 18 38% 36 30.54 1035.8
28 10:56 W 16 G 21 10.00 Partly Cloudy SCT055 39 19 45% 31 30.53 1035.6
28 09:56 NW 8 10.00 Partly Cloudy SCT075 37 18 46% 32 30.52 1035.2
28 08:56 NW 13 G 23 10.00 Fair CLR 33.1 17.1 52% 25 30.49 1034.5
28 07:56 NW 8 10.00 Fair CLR 30.9 18 37 30 59% 24 30.46 1033.6
28 06:56 NW 7 10.00 Fair CLR 30.9 17.1 56% 25 30.42 1032.0
28 05:56 NW 9 G 17 10.00 Fair CLR 33.1 15.1 48% 26 30.38 1030.6
28 04:56 Vrbl 3 10.00 A Few Clouds FEW044 36 24.1 62% 30.33 1028.8
28 03:56 Calm 10.00 Mostly Cloudy BKN060 37 26.1 65% 30.28 1027.0
28 02:56 Calm 10.00 Overcast SCT043 OVC060 35.1 30 82% 30.26 1026.6
28 01:56 Calm 10.00 Overcast OVC055 34 34 41 34 100% 30.24 1025.7
28 00:56 Calm 10.00 Fair CLR 35.1 30 82% 30.23 1025.5
27 23:56 Calm 10.00 A Few Clouds FEW055 36 34 93% 30.23 1025.6
27 22:56 Calm 10.00 Overcast OVC050 37.9 35.1 89% 30.22 1024.8
27 21:56 Calm 10.00 A Few Clouds FEW046 37.9 32 79% 30.2 1024.2
27 20:56 Calm 10.00 Fair CLR 39.9 39.9 100% 30.17 1023.3
27 19:56 Calm 10.00 Overcast FEW055 OVC095 39.9 39.9 48.9 39.9 100% 30.15 1022.4 0.01 0.05
27 18:56 NE 3 10.00 Light Rain OVC090 41 41 100% 30.13 1022.0 0.01
27 17:56 Vrbl 3 8.00 Rain OVC070 41 39 93% 30.11 1021.3 0.03
27 16:56 N 6 10.00 Overcast OVC055 45 30 56% 42 30.1 1020.5
27 15:56 Vrbl 7 10.00 Overcast OVC055 46 36 68% 43 30.08 1020.0
27 14:56 N 8 10.00 Overcast BKN034 OVC055 48 41 77% 45 30.08 1019.7
27 13:56 Vrbl 5 10.00 Overcast OVC023 48.9 44.1 57 48 83% 48 30.08 1019.8 0.09
27 12:56 NE 8 10.00 Overcast OVC019 48.9 48 97% 46 30.05 1019.0
27 11:56 N 7 10.00 Overcast BKN012 OVC018 50 50 100% 48 30.04 1018.5
27 10:56 Vrbl 5 10.00 Light Rain SCT018 OVC023 55.4 0 0% 30 1016.9 0.09
27 09:56 NW 5 10.00 Light Rain FEW015 BKN034 OVC060 55.4 0 0% 29.98 1016.1 0.02
27 08:56 Vrbl 3 8.00 Light Rain SCT025 BKN090 OVC110 55.4 0 0% 29.94 1014.8 0.07
27 07:56 N 6 9.00 Light Rain SCT010 OVC014 57.2 0 72 57 0% 29.92 1014.2 0.03 0.08
27 06:56 N 3 10.00 Light Rain FEW041 SCT050 OVC065 60.8 0 0% 29.85 1011.7 0.05
27 05:56 Vrbl 3 10.00 Light Rain FEW013 OVC060 62.1 62.1 100% 29.8 1010.2
27 04:56 N 3 10.00 Overcast BKN065 BKN080 OVC110 66 57.9 75% 29.78 1009.3
27 03:56 Calm 10.00 Fair CLR 66 54 65% 29.76 1008.7
27 02:56 Calm 10.00 A Few Clouds FEW110 70 53.1 55% 29.76 1008.6
27 01:56 W 6 10.00 Partly Cloudy FEW070 SCT085 72 53.1 75 72 52% 29.74 1008.0
27 00:56 SW 10 G 20 10.00 Fair CLR 73 53.1 50% 29.74 1008.0
26 23:56 SW 12 G 17 10.00 Fair CLR 73 53.1 50% 29.74 1008.1
26 22:56 SW 13 G 23 10.00 Fair CLR 73 53.1 50% 29.73 1007.6
26 21:56 SW 12 G 22 10.00 Fair CLR 73.9 52 46% 29.71 1006.8
26 20:56 SW 13 G 21 10.00 Fair CLR 73.9 52 46% 29.74 1008.2
26 19:56 S 10 G 22 10.00 Fair CLR 75 52 80.1 75 45% 78 29.75 1008.4
26 18:56 SW 9 G 28 10.00 Fair CLR 77 53.1 43% 78 29.77 1009.2
26 17:56 SW 13 G 22 10.00 A Few Clouds FEW080 78.1 52 40% 79 29.8 1010.1
26 16:56 SW 13 G 20 10.00 Overcast OVC100 79 52 39% 79 29.83 1011.1
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)