Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
17 23:56 NW 5 10.00 Overcast FEW070 OVC100 73.4 0 0% 30.13 1021.1
17 22:56 W 3 9.00 Overcast OVC095 71.6 0 0% 30.14 1021.6
17 21:56 Calm 10.00 Fair CLR 73 73 100% 30.15 1021.9
17 20:56 W 3 10.00 Fair CLR 73.9 73.9 100% 30.15 1022.0
17 19:56 SW 3 10.00 Mostly Cloudy SCT050 BKN075 75 75 80.1 75 100% 72 30.15 1021.9
17 18:56 Calm 10.00 Fair CLR 77 75.9 96% 78 30.15 1022.1
17 17:56 SW 7 10.00 Fair CLR 78.1 75 90% 81 30.15 1022.0
17 16:56 SW 3 10.00 Fair CLR 80.1 75.9 87% 85 30.16 1022.1
17 15:56 Calm 10.00 Fair CLR 78.1 78.1 100% 81 30.17 1022.8
17 14:56 S 6 10.00 Fair CLR 77 77 100% 78 30.19 1023.4
17 13:56 SE 7 9.00 Light Rain FEW032 BKN070 OVC100 75.2 0 86 68 0% 30.21 1024.1 0.16 0.3
17 12:56 Calm 1.50 Heavy Rain Fog/Mist FEW034 BKN043 BKN055 78.1 73.9 87% 81 30.25 1025.2 0.14
17 11:56 Calm 10.00 A Few Clouds FEW070 84 70 63% 88 30.25 1025.0
17 10:56 SE 6 10.00 Mostly Cloudy BKN070 BKN080 80.1 70 71% 83 30.27 1025.8
17 09:56 Calm 10.00 Mostly Cloudy BKN080 75 69.1 82% 75 30.27 1025.9
17 08:56 SE 7 10.00 A Few Clouds FEW070 72 69.1 91% 30.25 1025.5
17 07:56 Vrbl 3 10.00 Partly Cloudy SCT070 68 68 70 66 100% 30.27 1026.0
17 06:56 Calm 7.00 A Few Clouds FEW070 66.2 0 0% 30.27 1025.9
17 05:56 Calm 10.00 Fair CLR 68 68 100% 30.26 1025.6
17 04:56 SE 3 10.00 Partly Cloudy SCT050 69.1 69.1 100% 30.26 1025.7
17 03:56 SE 3 10.00 Overcast OVC055 70 70 100% 30.27 1025.9
17 02:56 SE 6 10.00 Mostly Cloudy BKN055 70 69.1 97% 30.28 1026.1
17 01:56 Calm 10.00 Fair CLR 69.1 69.1 78.1 69.1 100% 30.29 1026.5
17 00:56 Calm 10.00 Fair CLR 69.1 69.1 100% 30.3 1027.0
16 23:56 SE 5 10.00 Fair CLR 72 66.9 84% 30.31 1027.2
16 22:56 SE 5 10.00 Fair CLR 72 66.9 84% 30.32 1027.6
16 21:56 SE 5 10.00 Fair CLR 75 66 74% 76 30.32 1027.8
16 20:56 S 5 10.00 Fair CLR 75.9 64.9 69% 78 30.31 1027.6
16 19:56 S 6 10.00 Fair CLR 78.1 64.9 86 78.1 64% 80 30.3 1027.1
16 18:56 S 9 10.00 Fair CLR 80.1 64.9 60% 82 30.3 1027.2
16 17:56 Vrbl 5 10.00 Fair CLR 84.9 66 53% 87 30.31 1027.3
16 16:56 Vrbl 5 10.00 Fair CLR 84.9 64.9 51% 87 30.32 1027.7
16 15:56 SE 8 10.00 Fair CLR 84 64.9 53% 86 30.32 1027.9
16 14:56 Vrbl 3 10.00 Fair CLR 86 64.9 49% 88 30.34 1028.4
16 13:56 Calm 10.00 Fair CLR 82.9 63 84 63 51% 84 30.36 1029.1
16 12:56 SW 6 10.00 Fair CLR 81 63 54% 82 30.38 1029.8
16 11:56 Vrbl 5 10.00 Fair CLR 80.1 63 56% 81 30.39 1030.3
16 10:56 S 6 10.00 Fair CLR 77 62.1 60% 79 30.4 1030.6
16 09:56 SW 6 9.00 Fair CLR 72 61 68% 30.4 1030.6
16 08:56 SW 7 9.00 Fair CLR 68 60.1 76% 30.39 1030.3
16 07:56 S 3 10.00 Fair CLR 63 61 64.9 57.9 93% 30.38 1030.0
16 06:56 SE 3 10.00 Fair CLR 59 59 100% 30.37 1029.5
16 05:56 SE 3 10.00 Fair CLR 60.1 60.1 100% 30.36 1029.0
16 04:56 Calm 10.00 Fair CLR 59 59 100% 30.35 1028.7
16 03:56 Calm 10.00 Fair CLR 57.9 57.9 100% 30.34 1028.6
16 02:56 Calm 10.00 Fair CLR 59 59 100% 30.34 1028.4
16 01:56 S 3 10.00 Fair CLR 64 55.9 69.1 61 75% 30.34 1028.4
16 00:56 SE 6 10.00 Fair CLR 64 55.9 75% 30.34 1028.4
15 23:56 SE 6 10.00 Fair CLR 63 57 81% 30.36 1029.0
15 22:56 SE 3 10.00 Fair CLR 62.1 55.9 80% 30.36 1029.2
15 21:56 SE 3 10.00 Fair CLR 62.1 55 78% 30.36 1029.4
15 20:56 Calm 10.00 Fair CLR 64 54 70% 30.36 1029.3
15 19:56 Calm 10.00 Fair CLR 69.1 53.1 79 69.1 57% 30.34 1028.6
15 18:56 S 5 10.00 Fair CLR 75 53.1 46% 78 30.34 1028.5
15 17:56 SE 8 10.00 Fair CLR 78.1 52 40% 79 30.34 1028.6
15 16:56 SE 7 10.00 Fair CLR 77 53.1 43% 78 30.34 1028.6
15 15:56 SW 5 10.00 Fair CLR 79 52 39% 79 30.34 1028.6
15 14:56 Calm 10.00 Fair CLR 78.1 53.1 42% 79 30.36 1029.0
15 13:56 Vrbl 7 10.00 Fair CLR 75.9 51.1 75.9 54 42% 78 30.37 1029.7
15 12:56 SE 5 10.00 Fair CLR 73 50 44% 30.39 1030.2
15 11:56 Calm 10.00 Fair CLR 73 48.9 43% 30.4 1030.5
15 10:56 Vrbl 6 10.00 Fair CLR 71.1 50 47% 30.41 1030.8
15 09:56 E 3 10.00 Fair CLR 66 53.1 63% 30.4 1030.7
15 08:56 Vrbl 3 10.00 Fair CLR 61 48.9 65% 30.4 1030.6
15 07:56 Calm 10.00 Fair CLR 54 48.9 57 48.9 83% 30.38 1029.9
15 06:56 Calm 10.00 Fair CLR 50 50 100% 30.37 1029.6
15 05:56 Calm 10.00 Fair CLR 50 50 100% 30.35 1028.8
15 04:56 Calm 10.00 Fair CLR 51.1 50 96% 30.32 1028.1
15 03:56 Calm 10.00 Fair CLR 55 48.9 80% 30.31 1027.5
15 02:56 Vrbl 3 10.00 Fair CLR 55.9 50 81% 30.3 1027.3
15 01:56 Calm 10.00 Fair CLR 55.9 52 64 55 87% 30.3 1027.3
15 00:56 Calm 10.00 Fair CLR 57.9 48.9 72% 30.29 1026.8
Date Time (edt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)