Weather observations for the past three days for
Gaithersburg - Montgomery County Airport
Imperial (Metric)
Date Time (est) 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.
19 19:56 NW 6 10.00 Fair CLR 30 10.9 45% 25 30.07 1020.5
19 17:56 NW 6 10.00 Fair CLR 33.1 10 38% 28 30.02 1018.5
19 16:56 NW 10 10.00 Fair CLR 36 10.9 35% 29 30 1017.8
19 14:56 W 8 10.00 Partly Cloudy SCT060 39 15.1 38% 34 29.96 1016.5
19 13:56 S 8 10.00 A Few Clouds FEW055 37.9 15.1 39% 33 29.94 1016.0
19 12:56 SW 10 10.00 A Few Clouds FEW048 37 16 37 15.1 42% 30 29.95 1016.1
19 11:56 W 14 G 22 10.00 Partly Cloudy SCT048 35.1 15.1 44% 27 29.96 1016.7
19 10:56 W 7 10.00 Mostly Cloudy BKN050 33.1 19 56% 28 30 1017.8
19 09:56 Vrbl 7 10.00 Overcast OVC055 33.1 21.9 64% 28 29.99 1017.7
19 08:56 SW 7 10.00 Fair CLR 28.9 25 85% 23 29.98 1017.3
19 07:56 S 5 10.00 Fair CLR 18 16 92% 12 29.98 1017.4
19 06:56 SE 3 10.00 Fair CLR 15.1 12.9 21 15.1 91% 29.97 1017.3
19 05:56 Calm 10.00 Fair CLR 18 15.1 88% 29.96 1016.7
19 04:56 SE 3 10.00 A Few Clouds FEW100 19 17.1 92% 29.95 1016.3
19 03:56 Calm 10.00 Overcast OVC110 19.9 17.1 89% 29.96 1016.6
19 02:56 Calm 10.00 A Few Clouds FEW120 15.1 12 88% 29.97 1017.1
19 01:56 Calm 10.00 Fair CLR 17.1 12.9 84% 29.96 1016.6
19 00:56 Calm 10.00 Fair CLR 19 16 28 19 88% 29.92 1015.1
18 23:56 W 3 10.00 Fair CLR 19.9 17.1 89% 29.95 1016.3
18 22:56 Calm 10.00 Fair CLR 19.9 17.1 89% 29.95 1016.1
18 21:56 NW 3 10.00 Fair CLR 21 19 92% 29.95 1016.4
18 20:56 NW 5 10.00 Fair CLR 21.9 19 89% 16 29.94 1016.0
18 19:56 N 3 10.00 Fair CLR 25 19.9 81% 29.93 1015.6
18 18:56 N 3 10.00 Overcast OVC075 28 24.1 35.1 28 85% 29.94 1016.0
18 17:56 Vrbl 5 10.00 Overcast OVC050 28.9 25 85% 25 29.95 1016.1
18 16:56 Vrbl 6 8.00 Light Snow BKN037 OVC048 30 25 82% 25 29.92 1015.2
18 15:56 NW 12 G 17 10.00 Unknown Precip OVC027 32 28.9 88% 24 29.9 1014.4
18 14:56 Vrbl 5 10.00 Overcast SCT027 OVC034 32 30 92% 28 29.89 1014.0
18 13:56 Vrbl 5 10.00 Overcast OVC026 33.1 30.9 92% 29 29.92 1015.0
18 12:56 N 3 10.00 Overcast OVC017 35.1 35.1 36 33.1 100% 29.94 1015.9 0.02
18 10:56 Calm 10.00 Overcast OVC038 36 36 100% 30.01 1018.3
18 09:56 Calm 8.00 Overcast OVC036 35.1 35.1 100% 30.02 1018.6 0.02
18 08:56 Calm 7.00 Overcast OVC032 34 34 100% 30.02 1018.5
18 07:56 Calm 1.50 Light Rain Fog/Mist OVC021 33.1 32 96% 30.03 1019.1 0.02
18 06:56 Calm 2.50 Light Rain Fog/Mist OVC011 34 33.1 34 32 97% 30.03 1019.1 0.01 0.06
18 05:56 Calm 3.00 Light Rain Fog/Mist OVC015 33.1 32 96% 30.02 1018.5 0.04
18 04:56 Calm 8.00 Light Rain FEW027 OVC033 34 32 92% 30.03 1018.7 0.01
18 03:56 Calm 10.00 Light Rain OVC049 33.1 32 96% 30.02 1018.4
18 02:56 Calm 10.00 Unknown Precip FEW041 BKN065 OVC085 34 33.1 97% 30.01 1018.0
18 01:56 Calm 10.00 Overcast BKN055 BKN070 OVC095 33.1 32 96% 30.04 1019.0
18 00:56 Calm 10.00 A Few Clouds FEW120 32 32 33.1 27 100% 30.05 1019.4
17 23:56 Calm 10.00 Overcast OVC065 32 30.9 96% 30.06 1020.0
17 22:56 Calm 10.00 Fair CLR 30.9 28.9 92% 30.07 1020.4
17 21:56 Calm 10.00 Fair CLR 28.9 27 92% 30.09 1021.0
17 20:56 Calm 10.00 Fair CLR 28 24.1 85% 30.08 1020.7
17 18:56 Calm 10.00 Fair CLR 30 27 43 30 88% 30.09 1021.1
17 17:56 SE 3 10.00 Fair CLR 36 30.9 82% 30.07 1020.1
17 16:56 SE 7 10.00 Fair CLR 37.9 30.9 76% 33 30.06 1019.6
17 15:56 S 5 10.00 Fair CLR 43 30.9 63% 41 30.05 1019.4
17 14:56 S 5 10.00 Fair CLR 42.1 30 62% 40 30.03 1018.6
17 13:56 W 6 10.00 A Few Clouds FEW090 39 30.9 73% 35 30.02 1018.4
17 12:56 W 5 10.00 Overcast OVC085 37 30.9 37 30.9 79% 34 30.01 1018.2 0.04
17 11:56 SW 5 10.00 Overcast OVC065 34 30 85% 30 30.03 1018.8
17 10:56 SW 6 9.00 Light Snow BKN020 OVC065 33.1 28.9 85% 28 30.05 1019.5 0.03
17 09:56 S 5 4.00 Light Snow Fog/Mist OVC036 30.9 28 89% 27 30.03 1018.7 0.01 0.01
17 08:56 Calm 10.00 Overcast FEW019 BKN023 OVC035 35.1 19 52% 30.04 1019.0
17 07:56 SE 6 10.00 Overcast BKN046 OVC055 35.1 18 50% 31 30.01 1018.2
17 06:56 SW 3 9.00 Light Rain FEW045 BKN060 OVC075 36 16 37 36 44% 30.01 1018.3
17 05:56 SE 5 10.00 Overcast OVC075 36 12 37% 33 29.99 1017.3
17 04:56 S 6 10.00 Overcast OVC100 37 10 33% 33 29.97 1016.8
17 03:56 S 6 10.00 Overcast BKN085 OVC110 36 9 32% 32 30 1018.0
17 02:56 S 6 10.00 Overcast OVC100 36 8.1 31% 32 30.02 1018.4
17 01:56 S 8 10.00 Partly Cloudy SCT110 36 8.1 31% 30 30 1017.9
17 00:56 S 8 10.00 Overcast OVC090 37 8.1 37 32 30% 32 30 1018.0
16 23:56 SW 5 10.00 Overcast BKN080 OVC110 37 7 28% 34 30 1017.9
16 22:56 S 7 10.00 Overcast FEW070 OVC110 35.1 9 34% 30 30 1018.0
16 21:56 SE 9 10.00 Overcast BKN080 OVC095 34 10 37% 27 29.99 1017.5
16 20:56 S 6 10.00 Overcast OVC080 34 9 35% 29 30.01 1018.2
Date Time (est) 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)