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.
22 05:56 Vrbl 9 16.09 Fair CLR 11.1 1.7 53% 76.33 1018.8
22 04:56 S 7 16.09 Fair CLR 10.6 2.8 59% 76.33 1019.0
22 03:56 S 9 16.09 Fair CLR 10.6 2.8 59% 76.38 1019.6
22 02:56 SE 13 16.09 Fair CLR 10 3.3 63% 8 76.43 1020.3
22 01:56 SE 11 16.09 Fair CLR 10 3.3 13.9 8.3 63% 9 76.48 1021.1
22 00:56 SE 13 16.09 Fair CLR 8.9 2.2 63% 7 76.58 1022.4
21 23:56 SE 13 16.09 Fair CLR 8.9 1.7 61% 7 76.61 1023.1
21 22:56 SE 15 16.09 Fair CLR 10 0.6 52% 8 76.66 1023.7
21 21:56 SE 13 16.09 Fair CLR 11.7 -0.6 43% 76.68 1023.9
21 20:56 SE 13 16.09 Fair CLR 12.8 -2.2 36% 76.68 1023.6
21 19:56 SE 11 16.09 Fair CLR 13.9 -3.3 17.2 13.9 30% 76.66 1023.7
21 18:56 S 17 16.09 Fair CLR 15 -3.3 28% 76.63 1023.5
21 17:56 SE 22 16.09 Fair CLR 16.1 -3.9 25% 76.66 1023.7
21 16:56 S 13 16.09 Fair CLR 17.2 -5.6 21% 76.71 1024.2
21 15:56 S 13 16.09 Fair CLR 16.7 -5 22% 76.81 1025.7
21 14:56 S 11 16.09 Fair CLR 15 -5 25% 76.89 1026.7
21 13:56 S 15 16.09 Fair CLR 13.9 -5.6 14.4 -0.6 26% 76.99 1028.1
21 12:56 Vrbl 11 16.09 Fair CLR 12.2 -6.1 28% 77.06 1029.3
21 11:56 Calm 16.09 Fair CLR 11.1 -5.6 31% 77.14 1030.4
21 10:56 W 15 16.09 Fair CLR 9.4 -5 36% 7 77.22 1031.2
21 09:56 SE 7 16.09 Fair CLR 8.3 -4.4 41% 7 77.27 1031.8
21 08:56 Vrbl 7 16.09 Fair CLR 5.6 -3.9 51% 4 77.32 1032.6
21 07:56 Calm 16.09 Fair CLR -0.6 -1.7 -0.6 -4.4 92% 77.32 1032.5
21 06:56 Calm 16.09 Fair CLR -3.9 -5 92% 77.27 1032.1
21 05:56 Calm 16.09 Fair CLR -3.9 -5 92% 77.17 1030.7
21 04:56 Calm 16.09 Fair CLR -3.3 -5 88% 77.14 1030.2
21 03:56 Calm 16.09 Fair CLR -3.3 -5.6 84% 77.09 1029.7
21 02:56 Calm 16.09 Fair CLR -2.8 -3.9 92% 77.04 1029.1
21 01:56 Calm 16.09 Fair CLR -0.6 -3.3 7.2 -1.1 82% 77.06 1029.3
21 00:56 Calm 16.09 Fair CLR -0.6 -3.3 82% 77.09 1029.8
20 23:56 Calm 16.09 Fair CLR 1.1 -5 64% 77.06 1029.4
20 22:56 Calm 16.09 Fair CLR 1.7 -4.4 64% 77.06 1029.3
20 21:56 Calm 16.09 Fair CLR 3.3 -6.1 51% 77.09 1029.3
20 20:56 Calm 16.09 Fair CLR 5 -6.1 45% 77.01 1028.6
20 19:56 Calm 16.09 Fair CLR 7.2 -7.8 12.2 7.2 34% 76.94 1027.5
20 18:56 Vrbl 9 G 26 16.09 Fair CLR 9.4 -7.8 29% 8 76.89 1026.6
20 17:56 NW 15 16.09 Mostly Cloudy BKN080 11.1 -7.2 27% 76.84 1026.0
20 16:56 NW 24 G 41 16.09 Partly Cloudy SCT080 11.1 -7.2 27% 76.78 1025.1
20 15:56 NW 17 G 41 16.09 A Few Clouds FEW080 11.1 -5.6 31% 76.76 1024.8
20 14:56 NW 24 G 41 16.09 Mostly Cloudy SCT065 BKN080 11.1 -4.4 34% 76.73 1024.8
20 13:56 NW 20 G 37 16.09 Partly Cloudy FEW055 SCT070 11.7 -2.8 11.7 6.1 37% 76.76 1024.9
20 12:56 NW 17 16.09 Overcast BKN047 OVC075 10.6 -1.1 45% 76.78 1025.3
20 11:56 NW 13 16.09 Mostly Cloudy SCT042 BKN050 BKN070 9.4 1.1 56% 8 76.78 1025.4
20 10:56 W 9 16.09 Light Rain FEW025 BKN035 OVC050 6.1 2.2 76% 4 76.78 1025.6
20 09:56 W 17 G 30 16.09 Mostly Cloudy FEW044 SCT070 BKN080 9.4 -0.6 50% 7 76.68 1024.1
20 08:56 NW 19 G 31 16.09 A Few Clouds FEW085 8.9 1.7 61% 6 76.68 1023.9
20 07:56 NW 11 16.09 Overcast OVC080 7.2 1.7 7.8 2.8 68% 5 76.66 1023.6
20 06:56 NW 15 16.09 Overcast OVC100 7.2 1.1 66% 5 76.61 1023.1
20 05:56 W 11 16.09 Overcast BKN100 OVC120 6.1 0.6 68% 4 76.58 1022.5
20 04:56 W 9 16.09 Overcast BKN075 OVC090 7.8 0.6 61% 6 76.58 1022.5
20 03:56 Calm 16.09 Overcast SCT065 OVC075 5.6 2.2 79% 76.56 1022.1
20 02:56 Calm 16.09 Overcast SCT090 OVC110 3.9 2.8 93% 76.53 1022.0
20 01:56 Calm 16.09 A Few Clouds FEW075 3.3 1.1 10.6 2.2 86% 76.58 1022.6
20 00:56 Calm 16.09 Mostly Cloudy BKN090 2.8 2.2 96% 76.58 1022.7
19 23:56 Calm 16.09 Fair CLR 2.8 1.7 93% 76.56 1022.4
19 22:56 Calm 16.09 Fair CLR 3.9 0.6 79% 76.53 1022.2
19 21:56 Calm 16.09 Fair CLR 5 -1.1 65% 76.5 1021.8
19 20:56 Calm 16.09 Fair CLR 7.8 -4.4 42% 76.45 1020.8
19 19:56 NW 15 16.09 Fair CLR 10.6 -5.6 14.4 10.6 32% 76.38 1019.6
19 18:56 NW 26 G 37 16.09 Partly Cloudy SCT085 12.8 -6.1 26% 76.3 1018.7
19 17:56 NW 28 G 37 16.09 Overcast OVC085 13.9 -4.4 28% 76.25 1017.7
19 16:56 NW 19 G 43 16.09 Mostly Cloudy BKN070 12.8 -2.2 36% 76.17 1016.9
19 15:56 NW 30 G 37 16.09 Partly Cloudy FEW060 SCT080 12.8 0 42% 76.17 1016.7
19 14:56 NW 20 G 31 16.09 Overcast BKN044 OVC055 13.3 3.9 53% 76.17 1016.8
19 13:56 NW 19 G 35 16.09 Mostly Cloudy BKN040 11.1 3.9 11.7 8.3 61% 76.17 1017.0 0.28
19 12:56 NW 13 G 28 16.09 Overcast FEW029 SCT042 OVC049 10 6.7 80% 8 76.2 1017.3
19 11:56 NW 15 16.09 Overcast BKN016 BKN040 OVC070 8.9 8.3 96% 7 76.17 1016.8 0.03
19 10:56 Vrbl 6 G 26 16.09 Light Rain SCT012 BKN020 OVC080 8.3 8.3 100% 76.15 1016.6 0.08 0.25
19 09:56 W 9 14.48 Light Rain SCT060 BKN070 OVC090 8 0 0% 7 76.15 1016.7 0.15
19 08:56 NW 15 16.09 Light Rain OVC055 8.3 8.3 100% 6 76.1 1015.9 0.03
19 07:56 NW 26 G 35 16.09 Overcast OVC049 10 5 15 10 71% 7 76 1014.5
19 06:56 NW 20 G 48 16.09 Overcast OVC037 10.6 6.7 77% 75.92 1013.4
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)