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.
30 11:56 SW 24 G 30 16.09 Mostly Cloudy BKN110 13.9 9.4 74% 76.91 1026.7
30 10:56 SW 15 16.09 Overcast OVC085 12.8 9.4 80% 76.94 1027.3 0.1
30 09:56 SW 11 16.09 Overcast BKN070 OVC080 11.1 9.4 89% 76.96 1027.5 0.03
30 08:56 SW 9 14.48 Rain OVC075 10 8.3 89% 9 76.96 1027.7 0.08
30 07:56 SW 15 G 28 16.09 Light Rain BKN075 OVC100 11.1 5 12.8 11.1 66% 76.96 1027.6
30 06:56 Vrbl 11 16.09 Overcast OVC100 11.7 2.8 55% 76.91 1026.7
30 05:56 SW 13 16.09 Fair CLR 11.1 2.2 55% 76.89 1026.4
30 04:56 S 11 16.09 A Few Clouds FEW110 11.1 0.6 49% 76.86 1026.2
30 03:56 S 11 16.09 A Few Clouds FEW110 11.7 -1.1 41% 76.86 1026.1
30 02:56 S 13 16.09 A Few Clouds FEW120 12.8 -2.2 36% 76.94 1026.8
30 01:56 S 17 16.09 Fair CLR 12.8 -6.1 13.3 11.7 26% 76.94 1026.9
30 00:56 S 13 16.09 Partly Cloudy SCT120 13.3 -7.8 22% 76.96 1027.5
29 23:56 S 15 G 26 16.09 Mostly Cloudy BKN120 13.3 -7.2 24% 77.04 1028.3
29 22:56 S 13 16.09 Fair CLR 12.8 -4.4 30% 77.06 1028.9
29 21:56 S 15 16.09 Fair CLR 12.2 -2.8 35% 77.09 1029.3
29 20:56 SE 13 16.09 A Few Clouds FEW120 12.2 -2.8 35% 77.09 1029.2
29 19:56 S 15 16.09 Fair CLR 12.8 -3.3 16.7 12.8 33% 77.09 1029.6
29 18:56 S 17 16.09 Fair CLR 14.4 -3.3 29% 77.11 1029.8
29 17:56 S 19 16.09 Fair CLR 16.1 -3.3 26% 77.11 1029.8
29 16:56 S 24 G 33 16.09 Fair CLR 16.7 -2.8 26% 77.14 1030.0
29 15:56 S 30 G 39 16.09 Fair CLR 16.7 -3.3 25% 77.22 1030.9
29 14:56 S 22 G 31 16.09 Fair CLR 15.6 -3.3 27% 77.27 1031.9
29 13:56 S 19 G 39 16.09 Fair CLR 14.4 -3.9 15 -0.6 28% 77.39 1033.5
29 12:56 SW 19 G 31 16.09 Fair CLR 13.9 -5 27% 77.5 1034.7
29 11:56 S 22 G 37 16.09 Fair CLR 12.8 -5 29% 77.57 1035.8
29 10:56 S 20 G 37 16.09 Fair CLR 11.1 -5.6 31% 77.62 1036.6
29 09:56 SW 22 G 31 16.09 Fair CLR 8.9 -5.6 36% 6 77.67 1037.2
29 08:56 SW 17 16.09 Fair CLR 6.7 -5.6 41% 4 77.65 1037.2
29 07:56 SE 7 16.09 Fair CLR -0.6 -2.2 -0.6 -2.8 89% -3 77.65 1037.1
29 06:56 Calm 16.09 Fair CLR -2.2 -3.3 92% 77.62 1036.8
29 05:56 Calm 16.09 Fair CLR -2.2 -4.4 85% 77.62 1036.6
29 04:56 Calm 16.09 Fair CLR -2.2 -4.4 85% 77.57 1036.0
29 03:56 Calm 16.09 Fair CLR -2.2 -5 81% 77.57 1036.2
29 02:56 Calm 16.09 Fair CLR -1.7 -5.6 75% 77.6 1036.5
29 01:56 Calm 16.09 Fair CLR -1.7 -5 6.1 -1.7 78% 77.62 1036.6
29 00:56 Calm 16.09 Fair CLR -0.6 -5.6 69% 77.6 1036.5
28 23:56 Calm 16.09 Fair CLR 0 -6.1 64% 77.57 1036.2
28 22:56 Calm 16.09 Fair CLR 1.1 -7.2 54% 77.57 1036.0
28 21:56 Calm 16.09 Fair CLR 1.7 -7.8 50% 77.57 1036.0
28 20:56 Calm 16.09 Fair CLR 4.4 -8.3 40% 77.52 1035.5
28 19:56 NW 7 16.09 Fair CLR 6.1 -10.6 9.4 6.1 29% 5 77.44 1034.5
28 18:56 NW 13 16.09 Fair CLR 7.8 -10.6 26% 6 77.42 1033.9
28 17:56 W 20 G 28 16.09 Fair CLR 8.9 -10 25% 6 77.37 1033.4
28 16:56 NW 19 G 31 16.09 Fair CLR 8.3 -11.1 24% 6 77.37 1033.4
28 15:56 NW 22 G 33 16.09 Fair CLR 8.3 -10 26% 5 77.39 1033.5
28 14:56 NW 20 G 28 16.09 Fair CLR 8.3 -8.9 29% 5 77.44 1034.2
28 13:56 NW 15 G 26 16.09 Fair CLR 8.3 -7.2 8.3 -0.6 33% 6 77.47 1034.9
28 12:56 Vrbl 9 G 31 16.09 Fair CLR 6.7 -7.8 35% 5 77.5 1035.1
28 11:56 NW 19 G 33 16.09 Partly Cloudy SCT060 5.6 -7.8 38% 2 77.57 1035.8
28 10:56 W 26 G 33 16.09 Partly Cloudy SCT055 3.9 -7.2 45% -1 77.55 1035.6
28 09:56 NW 13 16.09 Partly Cloudy SCT075 2.8 -7.8 46% -0 77.52 1035.2
28 08:56 NW 20 G 37 16.09 Fair CLR 0.6 -8.3 52% -4 77.44 1034.5
28 07:56 NW 13 16.09 Fair CLR -0.6 -7.8 2.8 -1.1 59% -4 77.37 1033.6
28 06:56 NW 11 16.09 Fair CLR -0.6 -8.3 56% -4 77.27 1032.0
28 05:56 NW 15 G 28 16.09 Fair CLR 0.6 -9.4 48% -3 77.17 1030.6
28 04:56 Vrbl 6 16.09 A Few Clouds FEW044 2.2 -4.4 62% 77.04 1028.8
28 03:56 Calm 16.09 Mostly Cloudy BKN060 2.8 -3.3 65% 76.91 1027.0
28 02:56 Calm 16.09 Overcast SCT043 OVC060 1.7 -1.1 82% 76.86 1026.6
28 01:56 Calm 16.09 Overcast OVC055 1.1 1.1 5 1.1 100% 76.81 1025.7
28 00:56 Calm 16.09 Fair CLR 1.7 -1.1 82% 76.78 1025.5
27 23:56 Calm 16.09 A Few Clouds FEW055 2.2 1.1 93% 76.78 1025.6
27 22:56 Calm 16.09 Overcast OVC050 3.3 1.7 89% 76.76 1024.8
27 21:56 Calm 16.09 A Few Clouds FEW046 3.3 0 79% 76.71 1024.2
27 20:56 Calm 16.09 Fair CLR 4.4 4.4 100% 76.63 1023.3
27 19:56 Calm 16.09 Overcast FEW055 OVC095 4.4 4.4 9.4 4.4 100% 76.58 1022.4 0.03 0.13
27 18:56 NE 6 16.09 Light Rain OVC090 5 5 100% 76.53 1022.0 0.03
27 17:56 Vrbl 6 12.87 Rain OVC070 5 3.9 93% 76.48 1021.3 0.08
27 16:56 N 9 16.09 Overcast OVC055 7.2 -1.1 56% 6 76.45 1020.5
27 15:56 Vrbl 11 16.09 Overcast OVC055 7.8 2.2 68% 6 76.4 1020.0
27 14:56 N 13 16.09 Overcast BKN034 OVC055 8.9 5 77% 7 76.4 1019.7
27 13:56 Vrbl 7 16.09 Overcast OVC023 9.4 6.7 13.9 8.9 83% 9 76.4 1019.8 0.23
27 12:56 NE 13 16.09 Overcast OVC019 9.4 8.9 97% 8 76.33 1019.0
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)