Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Metric (Imperial)
Date Time (est) 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 10:56 SE 15 16.09 Fair CLR 0 -11.1 43% -4 77.34 1033.4
21 09:56 S 17 16.09 Fair CLR -1.7 -11.1 49% -6 77.47 1035.0
21 08:56 SE 11 16.09 Fair CLR -5.6 -13.3 55% -10 77.47 1035.1
21 07:56 Calm 16.09 Fair CLR -11.1 -14.4 77% 77.5 1035.6
21 06:56 Calm 16.09 Fair CLR -11.1 -15 -10 -12.2 73% 77.47 1035.4
21 05:56 Calm 16.09 Fair CLR -11.1 -15.6 70% 77.52 1035.8
21 04:56 Calm 16.09 Fair CLR -10.6 -15.6 67% 77.47 1035.3
21 03:56 Calm 16.09 Fair CLR -11.1 -14.4 77% 77.5 1035.7
21 02:56 SE 6 16.09 Fair CLR -11.1 -15 73% 77.5 1035.6
21 01:56 Calm 16.09 Fair CLR -11.7 -15 77% 77.5 1035.4
21 00:56 Calm 16.09 Fair CLR -11.1 -16.1 -5.6 -11.1 67% 77.47 1035.4
20 23:56 Calm 16.09 Fair CLR -10 -17.2 56% 77.47 1035.4
20 22:56 Calm 16.09 Fair CLR -10.6 -16.1 64% 77.47 1035.2
20 21:56 SE 9 16.09 Fair CLR -7.8 -17.2 47% -12 77.44 1035.1
20 20:56 W 11 16.09 Fair CLR -9.4 -17.2 53% -14 77.39 1034.4
20 19:56 Calm 16.09 Fair CLR -6.1 -18.3 38% 77.39 1034.3
20 18:56 Vrbl 6 16.09 Fair CLR -5.6 -18.3 -2.2 -6.1 36% 77.34 1033.4
20 17:56 NW 7 16.09 Fair CLR -5 -19.4 32% -8 77.29 1032.8
20 16:56 W 22 16.09 Fair CLR -3.9 -19.4 29% -10 77.22 1032.0
20 15:56 NW 19 16.09 Fair CLR -2.8 -20 25% -8 77.19 1031.3
20 14:56 W 17 G 30 16.09 Fair CLR -2.2 -20 24% -7 77.14 1030.7
20 13:56 SW 13 16.09 Fair CLR -2.8 -19.4 27% -7 77.11 1030.5
20 12:56 W 22 G 30 16.09 Fair CLR -3.3 -18.3 -3.3 -9.4 31% -9 77.14 1030.6
20 11:56 NW 13 G 31 16.09 Fair CLR -4.4 -18.9 32% -9 77.19 1031.3
20 10:56 W 22 G 33 16.09 Fair CLR -5 -18.3 35% -11 77.24 1031.9
20 09:56 NW 22 G 33 16.09 Fair CLR -6.7 -17.8 41% -14 77.19 1031.5
20 08:56 NW 19 16.09 Fair CLR -7.8 -18.3 43% -14 77.17 1031.0
20 07:56 NW 11 16.09 Fair CLR -9.4 -18.3 49% -14 77.11 1030.4
20 06:56 NW 17 G 28 16.09 Fair CLR -8.9 -18.9 -4.4 -9.4 45% -15 77.06 1029.6
20 05:56 NW 17 16.09 Fair CLR -8.9 -18.9 45% -15 76.96 1028.4
20 04:56 NW 15 G 26 16.09 Fair CLR -8.3 -18.9 43% -14 76.89 1027.3
20 03:56 NW 24 G 33 16.09 Fair CLR -7.8 -17.8 45% -15 76.86 1026.8
20 02:56 NW 20 G 28 16.09 Fair CLR -6.7 -16.7 45% -13 76.86 1026.9
20 01:56 NW 15 16.09 Fair CLR -5.6 -16.1 44% -11 76.78 1025.9
20 00:56 NW 11 16.09 Fair CLR -4.4 -13.9 -0.6 -4.4 48% -8 76.71 1024.7
19 23:56 NW 11 16.09 Fair CLR -3.9 -13.3 48% -8 76.63 1023.9
19 22:56 NW 20 G 28 16.09 Fair CLR -2.2 -10.6 53% -8 76.56 1022.8
19 21:56 NW 19 16.09 Fair CLR -1.7 -11.7 47% -7 76.48 1021.6
19 20:56 NW 15 16.09 Fair CLR -1.1 -11.7 45% -5 76.4 1020.8
19 19:56 NW 9 16.09 Fair CLR -1.1 -11.7 45% -4 76.38 1020.5
19 17:56 NW 9 16.09 Fair CLR 0.6 -12.2 38% -2 76.25 1018.5
19 16:56 NW 17 16.09 Fair CLR 2.2 -11.7 35% -2 76.2 1017.8
19 14:56 W 13 16.09 Partly Cloudy SCT060 3.9 -9.4 38% 1 76.1 1016.5
19 13:56 S 13 16.09 A Few Clouds FEW055 3.3 -9.4 39% 0 76.05 1016.0
19 12:56 SW 17 16.09 A Few Clouds FEW048 2.8 -8.9 2.8 -9.4 42% -1 76.07 1016.1
19 11:56 W 22 G 35 16.09 Partly Cloudy SCT048 1.7 -9.4 44% -3 76.1 1016.7
19 10:56 W 11 16.09 Mostly Cloudy BKN050 0.6 -7.2 56% -2 76.2 1017.8
19 09:56 Vrbl 11 16.09 Overcast OVC055 0.6 -5.6 64% -2 76.17 1017.7
19 08:56 SW 11 16.09 Fair CLR -1.7 -3.9 85% -5 76.15 1017.3
19 07:56 S 7 16.09 Fair CLR -7.8 -8.9 92% -11 76.15 1017.4
19 06:56 SE 6 16.09 Fair CLR -9.4 -10.6 -6.1 -9.4 91% 76.12 1017.3
19 05:56 Calm 16.09 Fair CLR -7.8 -9.4 88% 76.1 1016.7
19 04:56 SE 6 16.09 A Few Clouds FEW100 -7.2 -8.3 92% 76.07 1016.3
19 03:56 Calm 16.09 Overcast OVC110 -6.7 -8.3 89% 76.1 1016.6
19 02:56 Calm 16.09 A Few Clouds FEW120 -9.4 -11.1 88% 76.12 1017.1
19 01:56 Calm 16.09 Fair CLR -8.3 -10.6 84% 76.1 1016.6
19 00:56 Calm 16.09 Fair CLR -7.2 -8.9 -2.2 -7.2 88% 76 1015.1
18 23:56 W 6 16.09 Fair CLR -6.7 -8.3 89% 76.07 1016.3
18 22:56 Calm 16.09 Fair CLR -6.7 -8.3 89% 76.07 1016.1
18 21:56 NW 6 16.09 Fair CLR -6.1 -7.2 92% 76.07 1016.4
18 20:56 NW 7 16.09 Fair CLR -5.6 -7.2 89% -9 76.05 1016.0
18 19:56 N 6 16.09 Fair CLR -3.9 -6.7 81% 76.02 1015.6
18 18:56 N 6 16.09 Overcast OVC075 -2.2 -4.4 1.7 -2.2 85% 76.05 1016.0
18 17:56 Vrbl 7 16.09 Overcast OVC050 -1.7 -3.9 85% -4 76.07 1016.1
18 16:56 Vrbl 9 12.87 Light Snow BKN037 OVC048 -1.1 -3.9 82% -4 76 1015.2
18 15:56 NW 19 G 28 16.09 Unknown Precip OVC027 0 -1.7 88% -5 75.95 1014.4
18 14:56 Vrbl 7 16.09 Overcast SCT027 OVC034 0 -1.1 92% -2 75.92 1014.0
18 13:56 Vrbl 7 16.09 Overcast OVC026 0.6 -0.6 92% -1 76 1015.0
18 12:56 N 6 16.09 Overcast OVC017 1.7 1.7 2.2 0.6 100% 76.05 1015.9 0.05
Date Time (est) 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)