National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
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.
11 16:56 Vrbl 3 2.50 Light Rain Fog/Mist OVC005 64 64 100% 29.89 1013.3 0.02 0.09
11 15:56 Vrbl 3 1.75 Light Rain Fog/Mist OVC005 64 64 100% 29.91 1014.0 0.02
11 14:56 Vrbl 5 3.00 Light Rain Fog/Mist OVC005 62.1 62.1 100% 29.93 1014.8 0.05
11 13:56 Vrbl 5 2.50 Light Rain Fog/Mist BKN005 OVC022 61 61 61 60.1 100% 29.97 1016.1 0.17 1.42
11 12:56 Vrbl 5 5.00 Light Rain Fog/Mist OVC005 61 61 100% 30.02 1017.7 0.03
11 11:56 Vrbl 7 3.00 Light Rain Fog/Mist OVC007 60.1 60.1 100% 30.06 1019.3 0.19
11 10:56 Vrbl 7 2.50 Rain Fog/Mist BKN007 OVC010 60.1 60.1 100% 30.11 1020.8 0.49 1.03
11 09:56 Calm 2.00 Heavy Rain Fog/Mist OVC007 60.1 60.1 100% 30.16 1022.5 0.38
11 08:56 Vrbl 3 3.00 Heavy Rain Fog/Mist OVC007 60.1 60.1 100% 30.16 1022.5 0.16
11 06:56 Vrbl 7 4.00 Heavy Rain Fog/Mist OVC007 59 59 100% 30.2 1023.9 0.23
11 05:56 Vrbl 5 4.00 Rain BKN007 OVC014 57.2 0 0% 30.22 1024.5 0.2
11 04:56 Vrbl 3 5.00 Rain SCT022 BKN028 OVC050 57.2 0 0% 30.23 1025.1 0.16 0.24
11 03:56 Calm 10.00 Rain BKN027 BKN033 OVC055 59 59 100% 30.26 1026.0 0.08
11 02:56 Vrbl 3 10.00 Light Rain BKN080 OVC100 60.1 59 96% 30.28 1026.7
11 01:56 Vrbl 5 10.00 Overcast OVC085 60.1 59 63 60.1 96% 30.31 1027.6
11 00:56 Vrbl 3 10.00 Overcast OVC090 60.1 59 96% 30.33 1028.3
10 23:56 Vrbl 3 10.00 Light Rain OVC095 62.1 55.9 80% 30.36 1029.0
10 22:56 Vrbl 3 10.00 Overcast FEW047 OVC100 62.1 55 78% 30.37 1029.5
10 21:56 Vrbl 3 10.00 Overcast OVC100 62.1 54 75% 30.37 1029.9
10 20:56 E 3 10.00 Overcast FEW044 OVC110 62.1 52 70% 30.37 1029.5
10 19:56 Vrbl 3 10.00 Mostly Cloudy SCT048 BKN120 63 48.9 69.1 62.1 60% 30.37 1029.6
10 18:56 Vrbl 3 10.00 Fair CLR 64 50 60% 30.35 1029.2
10 17:56 Calm 10.00 A Few Clouds FEW110 64.9 52 63% 30.36 1029.3
10 16:56 Calm 10.00 A Few Clouds FEW110 66 53.1 63% 30.37 1029.8
10 15:56 Calm 10.00 Fair CLR 68 51.1 55% 30.39 1030.2
10 14:56 Vrbl 6 10.00 Fair CLR 68 51.1 55% 30.38 1030.1
10 13:56 Vrbl 3 10.00 Fair CLR 68 53.1 70 55.9 59% 30.41 1031.2
10 12:56 Vrbl 6 10.00 Fair CLR 70 50 49% 30.41 1031.2
10 11:56 Calm 10.00 Fair CLR 69.1 52 55% 30.44 1032.2
10 10:56 Vrbl 3 10.00 Fair CLR 64.9 53.1 66% 30.44 1032.1
10 09:56 Calm 10.00 Fair CLR 61 51.1 70% 30.42 1031.4
10 08:56 Calm 10.00 Fair CLR 55.9 51.1 84% 30.39 1030.6
10 07:56 Calm 10.00 Fair CLR 48.9 48.9 51.1 48 100% 30.4 1030.9
10 06:56 Calm 10.00 Fair CLR 48.9 48.9 100% 30.37 1030.0
10 04:56 Calm 10.00 Fair CLR 48.9 48.9 100% 30.32 1027.9
10 03:56 Calm 10.00 Fair CLR 48.9 48.9 100% 30.31 1027.6
10 02:56 Calm 10.00 Fair CLR 50 50 100% 30.32 1028.1
10 01:56 Calm 10.00 Fair CLR 50 50 57.9 50 100% 30.32 1028.0
10 00:56 Calm 10.00 Fair CLR 51.1 51.1 100% 30.31 1027.6
09 23:56 Calm 10.00 Fair CLR 52 52 100% 30.3 1027.5
09 22:56 Calm 10.00 Fair CLR 53.1 52 96% 30.3 1027.4
09 21:56 Calm 10.00 Fair CLR 54 52 93% 30.28 1026.7
09 20:56 Calm 10.00 Fair CLR 55.9 52 87% 30.28 1026.9
09 19:56 Calm 10.00 Fair CLR 57.9 48 73 57 70% 30.26 1026.4
09 18:56 SE 3 10.00 Fair CLR 61 48 63% 30.25 1025.6
09 17:56 Calm 10.00 Fair CLR 64.9 45 49% 30.23 1025.0
09 16:56 Calm 10.00 Fair CLR 68 45 44% 30.21 1024.3
09 15:56 Vrbl 5 10.00 Fair CLR 70 42.1 37% 30.2 1023.9
09 14:56 W 7 10.00 Fair CLR 71.1 39.9 32% 30.21 1024.1
09 13:56 NW 10 10.00 Fair CLR 73 42.1 73 45 33% 30.21 1024.4
09 12:56 W 9 10.00 Fair CLR 73 46.9 40% 30.22 1024.8
09 11:56 W 12 10.00 Fair CLR 71.1 48 44% 30.23 1025.1
09 10:56 W 6 10.00 Fair CLR 70 48 46% 30.23 1025.0
09 09:56 W 3 10.00 Fair CLR 63 48.9 60% 30.23 1024.9
09 08:56 Calm 10.00 Fair CLR 53.1 52 96% 30.22 1024.6
09 07:56 Calm 10.00 Fair CLR 45 45 48 45 100% 30.19 1023.9
09 06:56 Calm 10.00 Fair CLR 46 46 100% 30.18 1023.3
09 05:56 Calm 10.00 Fair CLR 46 46 100% 30.15 1022.3
09 04:56 Calm 10.00 Fair CLR 46 46 100% 30.13 1021.7
09 03:56 Calm 10.00 Fair CLR 46.9 46.9 100% 30.12 1021.4
09 02:56 Calm 10.00 Fair CLR 48 48 100% 30.13 1021.4
09 01:56 Calm 10.00 Fair CLR 48 48 59 48 100% 30.12 1021.5
09 00:56 Calm 10.00 Fair CLR 48.9 48.9 100% 30.12 1021.1
08 23:56 Calm 10.00 Fair CLR 51.1 48.9 92% 30.12 1021.0
08 22:56 Calm 10.00 Fair CLR 52 48 86% 30.1 1020.7
08 21:56 Calm 10.00 Fair CLR 53.1 46.9 80% 30.09 1020.2
08 20:56 Calm 10.00 Fair CLR 55.9 48.9 77% 30.07 1019.4
08 19:56 Calm 10.00 Fair CLR 59 46 77 59 62% 30.04 1018.4
08 18:56 Calm 10.00 Fair CLR 64.9 43 45% 30 1017.2
08 17:56 Calm 10.00 Fair CLR 73.9 44.1 34% 29.98 1016.3
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)