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.
19 01:56 SE 7 10.00 Overcast BKN065 OVC100 34 21 35.1 33.1 59% 29 30.3 1028.0
19 00:56 SE 6 10.00 Overcast BKN065 OVC100 34 19.9 56% 29 30.31 1028.5
18 23:56 SE 7 10.00 Overcast OVC065 34 19.9 56% 29 30.32 1028.6
18 22:56 SE 7 10.00 Overcast OVC070 33.1 19 56% 28 30.32 1028.8
18 21:56 E 6 10.00 Overcast BKN095 OVC120 33.1 18 54% 28 30.32 1029.0
18 20:56 SE 6 10.00 Mostly Cloudy BKN120 35.1 12.9 40% 31 30.32 1028.9
18 19:56 SE 6 10.00 Fair CLR 35.1 12 41 35.1 38% 31 30.31 1028.4
18 18:56 S 7 10.00 Fair CLR 37.9 10 31% 33 30.32 1028.7
18 17:56 S 10 10.00 Fair CLR 39.9 9 28% 34 30.32 1028.9
18 16:56 SE 7 10.00 Fair CLR 39.9 12 32% 36 30.33 1029.1
18 15:56 S 9 G 17 10.00 Fair CLR 39.9 10.9 30% 34 30.34 1029.5
18 14:56 S 9 10.00 Fair CLR 39 10.9 31% 33 30.36 1030.1
18 13:56 S 13 G 17 10.00 Fair CLR 37.9 12 37.9 24.1 34% 31 30.39 1031.1
18 12:56 S 8 10.00 Fair CLR 36 10 34% 30 30.41 1032.0
18 11:56 Vrbl 3 10.00 Fair CLR 33.1 8.1 35% 30.42 1032.2
18 10:56 SE 6 10.00 A Few Clouds FEW110 32 12 43% 27 30.42 1032.1
18 09:56 Vrbl 3 10.00 A Few Clouds FEW120 27 12.9 55% 30.41 1031.8
18 08:56 N 5 10.00 A Few Clouds FEW120 26.1 14 60% 21 30.38 1031.0
18 07:56 Calm 10.00 Fair CLR 24.1 14 24.1 21 65% 30.39 1031.3
18 06:56 NW 5 10.00 Fair CLR 23 14 68% 18 30.39 1031.3
18 05:56 NW 6 10.00 Fair CLR 23 12.9 65% 17 30.39 1031.2
18 04:56 NW 3 10.00 Fair CLR 21 12.9 71% 30.35 1029.7
18 03:56 NW 6 10.00 Fair CLR 23 12 63% 17 30.33 1029.1
18 02:56 Vrbl 7 10.00 Fair CLR 24.1 12 60% 17 30.31 1028.6
18 01:56 W 3 10.00 Fair CLR 23 10.9 30.9 23 60% 30.31 1028.6
18 00:56 Vrbl 5 10.00 Fair CLR 26.1 10.9 53% 21 30.29 1027.7
17 23:56 NW 7 10.00 Fair CLR 27 10.9 51% 20 30.26 1027.0
17 22:56 NW 10 G 16 10.00 Fair CLR 27 10.9 51% 18 30.24 1026.0
17 21:56 NW 12 10.00 Fair CLR 28.9 9 43% 20 30.23 1025.7
17 20:56 W 16 G 26 10.00 Fair CLR 30 10 43% 19 30.19 1024.4
17 19:56 W 15 G 23 10.00 Fair CLR 30.9 12 39.9 30.9 45% 21 30.14 1022.7
17 18:56 W 24 G 31 10.00 Partly Cloudy and Breezy FEW060 SCT090 34 10.9 38% 22 30.09 1021.1
17 17:56 W 12 10.00 Mostly Cloudy BKN065 35.1 12 38% 28 30.04 1019.4
17 16:56 NW 14 G 25 10.00 Partly Cloudy FEW065 SCT085 37 10.9 34% 29 30.01 1018.2
17 15:56 NW 15 G 24 10.00 Mostly Cloudy BKN065 37.9 12.9 36% 30 30 1017.7
17 14:56 W 14 G 23 10.00 Mostly Cloudy BKN070 39 16 39% 32 29.98 1017.2
17 13:56 W 12 G 21 10.00 Overcast OVC060 36 15.1 37.9 28 42% 29 29.99 1017.4
17 12:56 W 10 G 24 10.00 Mostly Cloudy BKN060 36 16 44% 29 30 1017.6
17 11:56 NW 14 G 18 10.00 Mostly Cloudy BKN047 35.1 19 52% 27 29.99 1017.6
17 10:56 NW 13 G 20 10.00 Mostly Cloudy BKN047 34 19 54% 26 30 1017.9
17 09:56 NW 16 G 30 10.00 Fair CLR 32 18 56% 22 29.98 1017.2
17 08:56 W 14 10.00 Mostly Cloudy BKN055 30.9 17.1 56% 21 29.96 1016.5
17 07:56 W 8 10.00 Fair CLR 28 17.1 33.1 27 63% 21 29.92 1014.8
17 06:56 W 9 10.00 Partly Cloudy SCT049 28 18 66% 20 29.88 1013.6
17 05:56 W 20 G 26 10.00 Partly Cloudy SCT048 28.9 17.1 61% 17 29.84 1012.1
17 04:56 W 21 G 25 10.00 Partly Cloudy and Breezy SCT049 30 17.1 58% 18 29.79 1010.4
17 03:56 W 25 G 31 10.00 Fair and Breezy CLR 30.9 18 59% 18 29.76 1009.3
17 02:56 W 22 G 30 10.00 A Few Clouds and Breezy FEW049 32 19.9 61% 20 29.74 1008.6
17 01:56 W 17 G 30 10.00 Fair CLR 33.1 21 63 33.1 61% 23 29.69 1006.8 0.46
17 00:56 W 17 G 24 10.00 A Few Clouds FEW039 34 26.1 73% 24 29.63 1004.9
16 23:56 W 15 G 24 10.00 Mostly Cloudy BKN022 34 34 100% 25 29.58 1003.2
16 22:56 W 16 G 21 8.00 Light Snow OVC008 33.8 0 0% 24 29.52 1001.2 0.14 0.46
16 21:56 NW 22 G 32 9.00 Rain and Breezy BKN016 OVC055 39 39 100% 29 29.47 999.2 0.12
16 20:56 NW 20 G 36 4.00 Light Rain Fog/Mist BKN011 BKN017 OVC027 43 43 100% 35 29.37 996.0 0.2
16 19:56 S 13 G 24 10.00 Overcast BKN023 OVC036 63 62.1 63 60.1 97% 29.28 992.5 0.13
16 18:56 S 14 G 25 10.00 Overcast FEW009 BKN013 OVC020 62.6 0 0% 29.3 993.5
16 17:56 SE 14 10.00 Light Rain OVC007 62.6 0 0% 29.34 994.6
16 16:56 SE 15 10.00 Light Rain BKN013 BKN040 OVC110 60.8 0 0% 29.39 996.4 0.13
16 15:56 S 12 G 21 10.00 Mostly Cloudy FEW016 SCT080 BKN110 60.1 60.1 100% 29.43 997.8
16 14:56 S 8 10.00 Overcast FEW011 OVC075 60.8 0 0% 29.47 999.0 0.13
16 13:56 S 12 G 20 6.00 Rain FEW015 SCT050 OVC065 62.6 0 68 62.1 0% 29.49 999.8 0.33 0.39
16 12:56 S 14 G 20 10.00 Light Rain FEW018 BKN027 OVC075 66 64.9 96% 29.55 1001.8 0.05
16 11:56 S 14 G 25 10.00 Overcast OVC015 66 66 100% 29.55 1001.9
16 10:56 S 14 G 21 10.00 Overcast OVC017 66.9 66.9 100% 29.59 1003.2 0.01
16 09:56 S 8 G 21 10.00 Overcast OVC011 64.4 0 0% 29.62 1004.0 0.01
16 08:56 S 13 10.00 Overcast OVC011 64.4 0 0% 29.63 1004.4
16 07:56 S 14 G 21 10.00 Overcast OVC007 62.6 0 63 55.9 0% 29.64 1005.0 0.01
16 06:56 SE 14 10.00 Overcast OVC005 60.8 0 0% 29.65 1005.4 0.01
16 05:56 SE 13 8.00 Overcast OVC003 60.8 0 0% 29.68 1006.5
16 04:56 S 12 G 20 6.00 Overcast with Haze OVC003 60.8 0 0% 29.71 1007.3
16 03:56 SE 14 G 18 7.00 Overcast OVC003 57.2 0 0% 29.74 1008.4
16 02:56 SE 9 10.00 Overcast OVC003 57.2 0 0% 29.79 1010.0
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)