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.
19 11:56 SW 11 16.09 Mostly Cloudy BKN060 9.4 -2.8 43% 8 76.86 1026.4
19 10:56 Vrbl 6 16.09 Overcast OVC055 6.1 -2.8 53% 76.89 1026.9
19 09:56 S 7 16.09 Overcast OVC055 4.4 -2.8 60% 3 76.91 1027.2
19 08:56 S 7 16.09 Overcast OVC055 2.8 -2.2 70% 1 76.89 1027.1
19 07:56 S 11 16.09 Overcast OVC055 2.2 -2.8 2.2 1.1 70% -1 76.86 1026.5
19 06:56 SE 9 16.09 Overcast OVC060 1.7 -3.3 70% -1 76.86 1026.5
19 05:56 SE 9 16.09 Overcast OVC060 1.7 -3.9 67% -1 76.84 1026.1
19 04:56 SE 11 16.09 Overcast SCT055 OVC095 1.1 -4.4 67% -2 76.84 1026.4
19 03:56 SE 11 16.09 Overcast OVC065 1.1 -5 64% -2 76.86 1026.5
19 02:56 SE 11 16.09 Overcast OVC100 1.1 -5.6 61% -2 76.91 1027.3
19 01:56 SE 11 16.09 Overcast BKN065 OVC100 1.1 -6.1 1.7 0.6 59% -2 76.96 1028.0
19 00:56 SE 9 16.09 Overcast BKN065 OVC100 1.1 -6.7 56% -1 76.99 1028.5
18 23:56 SE 11 16.09 Overcast OVC065 1.1 -6.7 56% -2 77.01 1028.6
18 22:56 SE 11 16.09 Overcast OVC070 0.6 -7.2 56% -2 77.01 1028.8
18 21:56 E 9 16.09 Overcast BKN095 OVC120 0.6 -7.8 54% -2 77.01 1029.0
18 20:56 SE 9 16.09 Mostly Cloudy BKN120 1.7 -10.6 40% -1 77.01 1028.9
18 19:56 SE 9 16.09 Fair CLR 1.7 -11.1 5 1.7 38% -1 76.99 1028.4
18 18:56 S 11 16.09 Fair CLR 3.3 -12.2 31% 1 77.01 1028.7
18 17:56 S 17 16.09 Fair CLR 4.4 -12.8 28% 1 77.01 1028.9
18 16:56 SE 11 16.09 Fair CLR 4.4 -11.1 32% 2 77.04 1029.1
18 15:56 S 15 G 28 16.09 Fair CLR 4.4 -11.7 30% 1 77.06 1029.5
18 14:56 S 15 16.09 Fair CLR 3.9 -11.7 31% 1 77.11 1030.1
18 13:56 S 20 G 28 16.09 Fair CLR 3.3 -11.1 3.3 -4.4 34% -1 77.19 1031.1
18 12:56 S 13 16.09 Fair CLR 2.2 -12.2 34% -1 77.24 1032.0
18 11:56 Vrbl 6 16.09 Fair CLR 0.6 -13.3 35% 77.27 1032.2
18 10:56 SE 9 16.09 A Few Clouds FEW110 0 -11.1 43% -3 77.27 1032.1
18 09:56 Vrbl 6 16.09 A Few Clouds FEW120 -2.8 -10.6 55% 77.24 1031.8
18 08:56 N 7 16.09 A Few Clouds FEW120 -3.3 -10 60% -6 77.17 1031.0
18 07:56 Calm 16.09 Fair CLR -4.4 -10 -4.4 -6.1 65% 77.19 1031.3
18 06:56 NW 7 16.09 Fair CLR -5 -10 68% -8 77.19 1031.3
18 05:56 NW 9 16.09 Fair CLR -5 -10.6 65% -9 77.19 1031.2
18 04:56 NW 6 16.09 Fair CLR -6.1 -10.6 71% 77.09 1029.7
18 03:56 NW 9 16.09 Fair CLR -5 -11.1 63% -9 77.04 1029.1
18 02:56 Vrbl 11 16.09 Fair CLR -4.4 -11.1 60% -8 76.99 1028.6
18 01:56 W 6 16.09 Fair CLR -5 -11.7 -0.6 -5 60% 76.99 1028.6
18 00:56 Vrbl 7 16.09 Fair CLR -3.3 -11.7 53% -6 76.94 1027.7
17 23:56 NW 11 16.09 Fair CLR -2.8 -11.7 51% -7 76.86 1027.0
17 22:56 NW 17 G 26 16.09 Fair CLR -2.8 -11.7 51% -8 76.81 1026.0
17 21:56 NW 19 16.09 Fair CLR -1.7 -12.8 43% -7 76.78 1025.7
17 20:56 W 26 G 43 16.09 Fair CLR -1.1 -12.2 43% -7 76.68 1024.4
17 19:56 W 24 G 37 16.09 Fair CLR -0.6 -11.1 4.4 -0.6 45% -6 76.56 1022.7
17 18:56 W 39 G 50 16.09 Partly Cloudy and Breezy FEW060 SCT090 1.1 -11.7 38% -5 76.43 1021.1
17 17:56 W 19 16.09 Mostly Cloudy BKN065 1.7 -11.1 38% -2 76.3 1019.4
17 16:56 NW 22 G 41 16.09 Partly Cloudy FEW065 SCT085 2.8 -11.7 34% -2 76.23 1018.2
17 15:56 NW 24 G 39 16.09 Mostly Cloudy BKN065 3.3 -10.6 36% -1 76.2 1017.7
17 14:56 W 22 G 37 16.09 Mostly Cloudy BKN070 3.9 -8.9 39% -0 76.15 1017.2
17 13:56 W 19 G 33 16.09 Overcast OVC060 2.2 -9.4 3.3 -2.2 42% -2 76.17 1017.4
17 12:56 W 17 G 39 16.09 Mostly Cloudy BKN060 2.2 -8.9 44% -2 76.2 1017.6
17 11:56 NW 22 G 30 16.09 Mostly Cloudy BKN047 1.7 -7.2 52% -3 76.17 1017.6
17 10:56 NW 20 G 31 16.09 Mostly Cloudy BKN047 1.1 -7.2 54% -3 76.2 1017.9
17 09:56 NW 26 G 48 16.09 Fair CLR 0 -7.8 56% -6 76.15 1017.2
17 08:56 W 22 16.09 Mostly Cloudy BKN055 -0.6 -8.3 56% -6 76.1 1016.5
17 07:56 W 13 16.09 Fair CLR -2.2 -8.3 0.6 -2.8 63% -6 76 1014.8
17 06:56 W 15 16.09 Partly Cloudy SCT049 -2.2 -7.8 66% -7 75.9 1013.6
17 05:56 W 31 G 43 16.09 Partly Cloudy SCT048 -1.7 -8.3 61% -8 75.79 1012.1
17 04:56 W 33 G 41 16.09 Partly Cloudy and Breezy SCT049 -1.1 -8.3 58% -8 75.67 1010.4
17 03:56 W 41 G 50 16.09 Fair and Breezy CLR -0.6 -7.8 59% -8 75.59 1009.3
17 02:56 W 35 G 48 16.09 A Few Clouds and Breezy FEW049 0 -6.7 61% -7 75.54 1008.6
17 01:56 W 28 G 48 16.09 Fair CLR 0.6 -6.1 17.2 0.6 61% -5 75.41 1006.8 1.17
17 00:56 W 28 G 39 16.09 A Few Clouds FEW039 1.1 -3.3 73% -4 75.26 1004.9
16 23:56 W 24 G 39 16.09 Mostly Cloudy BKN022 1.1 1.1 100% -4 75.13 1003.2
16 22:56 W 26 G 33 12.87 Light Snow OVC008 1 0 0% -4 74.98 1001.2 0.36 1.17
16 21:56 NW 35 G 52 14.48 Rain and Breezy BKN016 OVC055 3.9 3.9 100% -1 74.85 999.2 0.3
16 20:56 NW 31 G 57 6.44 Light Rain Fog/Mist BKN011 BKN017 OVC027 6.1 6.1 100% 2 74.6 996.0 0.51
16 19:56 S 20 G 39 16.09 Overcast BKN023 OVC036 17.2 16.7 17.2 15.6 97% 74.37 992.5 0.33
16 18:56 S 22 G 41 16.09 Overcast FEW009 BKN013 OVC020 17 0 0% 74.42 993.5
16 17:56 SE 22 16.09 Light Rain OVC007 17 0 0% 74.52 994.6
16 16:56 SE 24 16.09 Light Rain BKN013 BKN040 OVC110 16 0 0% 74.65 996.4 0.33
16 15:56 S 19 G 33 16.09 Mostly Cloudy FEW016 SCT080 BKN110 15.6 15.6 100% 74.75 997.8
16 14:56 S 13 16.09 Overcast FEW011 OVC075 16 0 0% 74.85 999.0 0.33
16 13:56 S 19 G 31 9.66 Rain FEW015 SCT050 OVC065 17 0 20 16.7 0% 74.9 999.8 0.84 0.99
16 12:56 S 22 G 31 16.09 Light Rain FEW018 BKN027 OVC075 18.9 18.3 96% 75.06 1001.8 0.13
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)