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.
21 05:56 Calm 16.09 Mostly Cloudy BKN065 9 0 0% 75.72 1010.8
21 04:56 W 7 3.22 Fog/Mist BKN075 8 0 0% 7 75.67 1009.9
21 03:56 Calm 16.09 Overcast FEW060 BKN075 OVC090 10 0 0% 75.64 1009.7
21 02:56 Calm 16.09 Overcast BKN065 OVC100 11 0 0% 75.64 1009.8
21 01:56 SW 7 16.09 Light Rain FEW070 BKN080 OVC100 12.2 12.2 14.4 11.7 100% 75.64 1009.8 0.2 0.48
21 00:56 Vrbl 11 16.09 Light Rain FEW065 OVC085 12 0 0% 75.69 1010.3
20 23:56 Vrbl 6 16.09 Light Rain SCT070 BKN095 OVC110 12.8 12.2 96% 75.69 1010.5 0.23
20 22:56 Calm 16.09 Overcast OVC085 13.9 9.4 74% 75.69 1010.2 0.03 0.05
20 21:56 S 11 16.09 Light Rain OVC075 13.9 10.6 81% 75.69 1010.6
20 20:56 S 9 16.09 Light Rain OVC080 13.3 11.7 90% 75.72 1011.0 0.03
20 19:56 S 7 16.09 Light Rain OVC070 13.3 13.3 22.2 13.3 100% 75.79 1012.0 0.1 0.18
20 18:56 W 6 14.48 Light Rain OVC070 13.9 12.2 90% 75.82 1012.2 0.08
20 17:56 W 28 G 44 16.09 Light Rain OVC075 18.3 6.7 47% 75.74 1011.2
20 16:56 S 13 16.09 Overcast FEW070 BKN090 OVC110 21.1 3.3 31% 75.67 1010.2
20 15:56 SW 26 G 35 16.09 Fair CLR 21.1 3.3 31% 75.79 1011.8
20 14:56 S 20 16.09 Fair CLR 20.6 3.9 33% 75.9 1013.3
20 13:56 S 20 G 28 16.09 Fair CLR 20 4.4 20.6 3.9 36% 76.05 1015.1
20 12:56 SW 15 16.09 Fair CLR 19.4 3.3 35% 76.17 1016.7
20 11:56 SW 15 16.09 Fair CLR 17.8 2.8 37% 76.28 1018.1
20 10:56 S 11 16.09 Fair CLR 14.4 2.2 44% 76.33 1019.2
20 09:56 SW 13 16.09 Fair CLR 11.1 1.7 53% 76.43 1020.3
20 08:56 S 9 16.09 Fair CLR 7.2 2.2 71% 6 76.48 1021.2
20 07:56 SE 7 16.09 Fair CLR 3.9 2.2 6.1 2.8 89% 2 76.5 1021.5
20 06:56 SE 6 16.09 Fair CLR 3.3 1.1 86% 76.48 1021.3
20 05:56 S 7 16.09 Fair CLR 4.4 1.1 79% 3 76.5 1021.3
20 04:56 S 6 16.09 Fair CLR 4.4 1.1 79% 76.5 1021.3
20 03:56 S 7 16.09 Fair CLR 5 1.1 76% 4 76.5 1021.5
20 02:56 SE 6 16.09 Fair CLR 5 0.6 73% 76.58 1022.5
20 01:56 S 7 16.09 Fair CLR 6.1 0 10 6.1 65% 5 76.63 1023.3
20 00:56 S 9 16.09 A Few Clouds FEW065 6.7 0 63% 5 76.66 1023.5
19 23:56 Calm 16.09 Fair CLR 7.2 -0.6 58% 76.66 1023.7
19 22:56 SE 7 16.09 Fair CLR 7.2 0 61% 6 76.63 1023.3
19 21:56 SE 6 16.09 Fair CLR 7.8 -0.6 56% 76.66 1023.6
19 20:56 SE 9 16.09 Fair CLR 9.4 -1.1 48% 8 76.61 1023.0
19 19:56 SE 11 16.09 A Few Clouds FEW100 10 -1.1 14.4 10 46% 9 76.58 1022.7
19 18:56 SW 6 16.09 Fair CLR 12.8 -0.6 40% 76.58 1022.6
19 17:56 Calm 16.09 Fair CLR 14.4 -0.6 36% 76.58 1022.3
19 16:56 Vrbl 7 16.09 Fair CLR 13.9 0 39% 76.58 1022.6
19 15:56 Calm 16.09 Partly Cloudy SCT120 13.9 -0.6 37% 76.63 1023.2
19 14:56 Vrbl 6 16.09 A Few Clouds FEW055 12.8 -1.7 37% 76.68 1024.0
19 13:56 Vrbl 7 16.09 Overcast OVC055 11.1 -2.8 11.7 2.2 38% 76.76 1025.1
19 12:56 Vrbl 6 16.09 Overcast OVC055 11.1 -2.8 38% 76.81 1025.9
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
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)