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.
02 11:56 E 5 10.00 Fair CLR 87.1 75 67% 97 30.11 1020.4
02 10:56 Vrbl 3 10.00 Fair CLR 86 73.9 67% 94 30.1 1020.0
02 09:56 Calm 10.00 Fair CLR 82.9 73 72% 89 30.11 1020.3
02 08:56 SE 5 10.00 Fair CLR 79 73 82% 82 30.09 1019.9
02 07:56 Calm 10.00 Fair CLR 73 73 75.9 71.1 100% 30.08 1019.6
02 06:56 Calm 10.00 Partly Cloudy SCT120 72 72 100% 30.08 1019.6
02 05:56 Calm 10.00 Partly Cloudy SCT120 73 73 100% 30.08 1019.4
02 04:56 Calm 10.00 Fair CLR 71.1 71.1 100% 30.07 1019.2
02 03:56 Calm 10.00 Fair CLR 73 73 100% 30.07 1019.1
02 02:56 Calm 10.00 Fair CLR 73 73 100% 30.06 1018.7
02 01:56 W 3 10.00 Fair CLR 75.9 72 86 75 88% 76 30.06 1018.7
02 00:56 Calm 10.00 A Few Clouds FEW060 77 71.1 82% 79 30.06 1018.6
01 23:56 NW 3 10.00 Fair CLR 77 73 88% 78 30.03 1017.7
01 22:56 Calm 10.00 Fair CLR 79 71.1 77% 82 30.01 1017.2
01 21:56 NW 3 10.00 Fair CLR 80.1 71.1 74% 84 30.01 1017.2
01 20:56 W 5 10.00 Fair CLR 84 71.1 65% 89 30 1016.8
01 19:56 W 8 10.00 Mostly Cloudy BKN070 86 71.1 95 86 61% 92 29.97 1015.7
01 18:56 W 10 10.00 Mostly Cloudy BKN065 BKN080 90 71.1 54% 96 29.97 1015.8
01 17:56 W 7 10.00 Fair CLR 91.9 73 54% 101 29.97 1015.7
01 16:56 W 10 10.00 A Few Clouds FEW050 93.9 73 51% 103 29.99 1016.1
01 15:56 W 12 10.00 Mostly Cloudy SCT050 BKN100 91.9 73.9 56% 102 29.99 1016.4
01 14:56 Vrbl 7 10.00 Mostly Cloudy BKN100 89.1 73 59% 97 30.02 1017.3
01 13:56 W 8 10.00 Fair CLR 91.9 73.9 91.9 75 56% 102 30.02 1017.2
01 12:56 W 6 10.00 Fair CLR 88 75.9 68% 99 30.03 1017.7
01 11:56 W 8 10.00 Fair CLR 87.1 73.9 65% 95 30.05 1018.3
01 09:56 Vrbl 3 10.00 Fair CLR 81 73 77% 86 30.06 1018.8
01 08:56 W 7 10.00 A Few Clouds FEW120 80.1 73.9 82% 85 30.07 1019.0
01 07:56 Calm 10.00 Fair CLR 75 75 77 73 100% 72 30.07 1019.1
01 06:56 Calm 4.00 Fair with Haze CLR 73.4 0 0% 30.06 1018.8
01 05:56 Calm 6.00 Fair with Haze CLR 73.4 0 0% 30.05 1018.5
01 04:56 Calm 10.00 Fair CLR 73.4 0 0% 30.06 1018.7
01 03:56 Calm 10.00 Fair CLR 75 75 100% 72 30.06 1018.7
01 02:56 Calm 10.00 Fair CLR 75.9 75.9 100% 75 30.07 1019.0
01 01:56 S 3 10.00 Fair CLR 77 77 79 73 100% 78 30.08 1019.4
01 00:56 SE 5 10.00 Fair CLR 75.9 75.9 100% 75 30.09 1019.7
31 23:56 Calm 10.00 Partly Cloudy SCT110 73.4 0 0% 30.1 1020.0
31 22:56 Calm 10.00 Mostly Cloudy BKN110 73.4 0 0% 30.1 1020.3
31 21:56 SE 5 10.00 Fair CLR 75 75 100% 72 30.1 1020.0
31 20:56 Calm 10.00 Fair CLR 75.9 75.9 100% 75 30.1 1020.0
31 19:56 Calm 10.00 Partly Cloudy SCT110 78.1 75 86 77 90% 81 30.09 1019.8
31 18:56 Calm 10.00 Partly Cloudy SCT120 80.1 75 85% 85 30.09 1019.8
31 17:56 Calm 10.00 Fair CLR 82 73 74% 87 30.11 1020.4
31 16:56 Calm 10.00 Fair CLR 82 73 74% 87 30.11 1020.3
31 15:56 Calm 10.00 A Few Clouds FEW030 84 71.1 65% 89 30.11 1020.5
31 14:56 Calm 10.00 Partly Cloudy SCT030 82.9 72 70% 88 30.13 1021.1
31 13:56 Calm 10.00 Fair CLR 82 72 84 72 72% 87 30.13 1021.3
31 12:56 Vrbl 3 10.00 Fair CLR 82.9 71.1 67% 88 30.15 1021.7
31 11:56 Vrbl 3 10.00 Partly Cloudy SCT100 82 70 67% 86 30.15 1022.0
31 10:56 Calm 10.00 Mostly Cloudy BKN095 79 72 79% 82 30.15 1021.9
31 09:56 Calm 10.00 Overcast OVC110 77 73 88% 78 30.15 1021.8
31 08:56 Calm 10.00 Mostly Cloudy BKN010 BKN110 73.9 73.9 100% 30.15 1021.9
31 07:56 Calm 10.00 Fair CLR 72 72 72 68 100% 30.14 1021.4
31 06:56 Calm 10.00 Partly Cloudy SCT120 69.8 0 0% 30.12 1020.7
31 05:56 Calm 10.00 Partly Cloudy SCT120 68 0 0% 30.11 1020.3
31 04:56 Calm 10.00 Fair CLR 68 0 0% 30.1 1020.2
31 03:56 Calm 10.00 Partly Cloudy SCT070 69.8 0 0% 30.1 1020.1
31 02:56 Calm 10.00 Fair CLR 69.8 0 0% 30.1 1020.1
31 01:56 Calm 10.00 Fair CLR 69.8 0 78.1 69.1 0% 30.11 1020.4
31 00:56 Calm 10.00 A Few Clouds FEW110 69.8 0 0% 30.11 1020.6
30 23:56 Calm 10.00 Mostly Cloudy BKN100 71.6 0 0% 30.12 1020.9
30 22:56 Calm 10.00 Fair CLR 71.6 0 0% 30.13 1021.0
30 21:56 Calm 10.00 Fair CLR 71.6 0 0% 30.14 1021.5
30 20:56 Calm 10.00 A Few Clouds FEW120 73.9 72 94% 30.13 1021.2
30 19:56 S 9 G 18 10.00 Thunderstorm in Vicinity FEW043 BKN110 78.1 72 89.1 78.1 82% 80 30.12 1020.6
30 18:56 S 3 10.00 A Few Clouds FEW039 84 70 63% 88 30.11 1020.2
30 17:56 S 6 10.00 Mostly Cloudy BKN040 86 71.1 61% 92 30.1 1020.0
30 16:56 Calm 10.00 Mostly Cloudy FEW055 BKN090 86 70 59% 91 30.1 1019.9
30 15:56 Vrbl 5 10.00 Mostly Cloudy BKN036 BKN047 88 72 59% 95 30.11 1020.4
30 14:56 W 6 10.00 Mostly Cloudy FEW029 BKN120 84 71.1 65% 89 30.14 1021.6
30 13:56 Vrbl 6 10.00 A Few Clouds FEW027 82.9 71.1 84 72 67% 88 30.16 1022.3
30 12:56 W 5 10.00 Overcast SCT023 OVC055 79 71.1 77% 82 30.19 1023.5
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)