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.
04 00:56 Calm 16.09 Fair CLR 13.3 8.9 75% 76.73 1024.2
03 23:56 Calm 16.09 Fair CLR 13.9 11.1 83% 76.76 1024.6
03 22:56 Calm 16.09 Fair CLR 15.6 9.4 67% 76.78 1024.7
03 21:56 Calm 16.09 Fair CLR 16.7 9.4 62% 76.78 1024.8
03 20:56 Calm 12.87 Fair CLR 20.6 7.8 44% 76.76 1024.4
03 19:56 Calm 16.09 Fair CLR 24.4 6.7 28.3 24.4 32% 25 76.76 1024.3
03 18:56 Vrbl 6 16.09 Fair CLR 26.1 7.8 31% 26 76.73 1024.1
03 17:56 Calm 16.09 Fair CLR 27.2 6.1 26% 26 76.76 1024.2
03 16:56 Calm 16.09 Fair CLR 27.8 6.7 26% 27 76.78 1024.6
03 15:56 Vrbl 7 16.09 Fair CLR 27.2 6.7 27% 26 76.81 1025.1
03 14:56 Vrbl 7 16.09 Fair CLR 27.2 7.2 28% 26 76.86 1025.8
03 13:56 Vrbl 7 16.09 Fair CLR 26.7 7.8 26.7 16.1 30% 26 76.91 1026.3
03 12:56 Vrbl 7 16.09 Fair CLR 26.1 8.3 32% 26 76.94 1026.7
03 11:56 Vrbl 7 16.09 Fair CLR 25 8.3 35% 26 76.96 1027.0
03 10:56 Vrbl 9 16.09 Fair CLR 23.9 7.2 34% 25 76.96 1027.3
03 09:56 Vrbl 7 16.09 Fair CLR 22.2 7.8 40% 76.96 1027.1
03 08:56 Vrbl 6 16.09 Fair CLR 20 7.8 45% 76.94 1026.9
03 07:56 Vrbl 6 16.09 Fair CLR 16.1 8.9 16.1 9.4 63% 76.91 1026.4
03 06:56 Calm 16.09 Fair CLR 10.6 8.9 89% 76.86 1026.1
03 05:56 Calm 16.09 Fair CLR 9.4 9.4 100% 76.81 1025.5
03 04:56 Calm 16.09 Fair CLR 11.1 7.2 77% 76.81 1025.3
03 03:56 Calm 16.09 Fair CLR 11.1 8.9 86% 76.84 1025.4
03 02:56 Calm 16.09 Fair CLR 10.6 10 96% 76.81 1025.2
03 01:56 Calm 16.09 Fair CLR 11.1 10 21.1 11.1 93% 76.81 1025.3
03 00:56 Calm 16.09 Fair CLR 11.7 9.4 86% 76.81 1025.2
02 23:56 Calm 16.09 Fair CLR 12.2 8.3 77% 76.81 1025.2
02 22:56 Calm 16.09 Fair CLR 13.3 7.8 70% 76.78 1025.1
02 21:56 Calm 16.09 Fair CLR 14.4 8.9 70% 76.76 1024.8
02 20:56 Calm 16.09 Fair CLR 16.1 9.4 65% 76.76 1024.6
02 19:56 Calm 16.09 Fair CLR 21.1 6.7 24.4 21.1 39% 76.73 1024.3
02 18:56 Vrbl 6 16.09 A Few Clouds FEW080 22.8 6.1 34% 76.73 1024.0
02 17:56 Calm 16.09 Fair CLR 23.3 5 31% 76.73 1024.3
02 16:56 Vrbl 9 16.09 Fair CLR 23.3 3.9 28% 76.73 1024.2
02 15:56 Vrbl 9 16.09 Mostly Cloudy BKN080 23.9 4.4 28% 25 76.73 1024.3
02 14:56 Vrbl 7 16.09 Fair CLR 23.3 5.6 32% 76.76 1024.6
02 13:56 Vrbl 6 16.09 Fair CLR 23.3 5.6 23.3 13.9 32% 76.81 1025.0
02 12:56 Calm 16.09 Fair CLR 21.7 4.4 32% 76.84 1025.5
02 11:56 Vrbl 9 16.09 Fair CLR 21.1 5 35% 76.86 1025.9
02 10:56 Vrbl 6 16.09 Fair CLR 19.4 5 39% 76.89 1026.2
02 09:56 Vrbl 6 16.09 Fair CLR 18.3 7.2 49% 76.86 1026.1
02 08:56 Calm 16.09 Fair CLR 16.1 8.3 60% 76.86 1025.9
02 07:56 Vrbl 6 16.09 Fair CLR 14.4 9.4 14.4 9.4 72% 76.84 1025.5
02 06:56 Vrbl 6 16.09 Mostly Cloudy BKN070 11.7 10.6 93% 76.78 1025.0
02 05:56 Calm 16.09 Overcast BKN060 OVC100 10.6 10.6 100% 76.76 1024.6
02 04:56 Calm 16.09 A Few Clouds FEW060 9 0 0% 76.73 1024.1
02 03:56 Calm 16.09 A Few Clouds FEW110 10.6 10.6 100% 76.71 1023.7
02 02:56 Calm 16.09 Fair CLR 11.7 10.6 93% 76.71 1023.7
02 01:56 Calm 16.09 Fair CLR 13.3 9.4 21.7 12.8 77% 76.68 1023.4
02 00:56 Vrbl 7 16.09 Fair CLR 13.9 9.4 74% 76.61 1022.6
01 23:56 Vrbl 7 16.09 Fair CLR 15 9.4 69% 76.56 1021.8
01 22:56 Vrbl 6 16.09 Fair CLR 16.1 9.4 65% 76.53 1021.3
01 21:56 Vrbl 11 16.09 Fair CLR 17.2 8.9 58% 76.45 1020.1
01 20:56 Vrbl 9 16.09 Overcast OVC100 19.4 10 55% 76.35 1018.9
01 19:56 Calm 16.09 Fair CLR 21.7 8.3 25.6 21.7 42% 76.3 1018.2
01 18:56 Calm 16.09 Partly Cloudy SCT100 22.8 9.4 43% 76.28 1017.9
01 17:56 Vrbl 7 16.09 Mostly Cloudy BKN080 24.4 7.8 35% 25 76.25 1017.8
01 16:56 Calm 16.09 Fair CLR 25 7.8 33% 25 76.23 1017.5
01 15:56 Vrbl 7 16.09 Partly Cloudy SCT090 25.6 7.8 32% 26 76.23 1017.2
01 14:56 Calm 16.09 Mostly Cloudy FEW075 BKN090 25 8.9 36% 26 76.2 1017.0
01 13:56 Vrbl 6 16.09 A Few Clouds FEW075 25 8.3 25.6 17.2 35% 26 76.17 1016.6
01 12:56 Vrbl 6 16.09 Fair CLR 24.4 8.9 37% 25 76.2 1016.7
01 11:56 Vrbl 6 16.09 Fair CLR 23.9 7.8 36% 25 76.17 1016.7
01 10:56 Vrbl 6 16.09 Fair CLR 24.4 8.9 37% 25 76.15 1016.2
01 09:56 Calm 16.09 Fair CLR 22.8 9.4 43% 76.12 1016.0
01 08:56 Vrbl 6 16.09 Fair CLR 20.6 8.3 45% 76.1 1015.7
01 07:56 Calm 16.09 Fair CLR 17.2 8.9 17.2 10 58% 76.07 1015.3
01 06:56 Calm 16.09 Fair CLR 11.7 11.7 100% 76.02 1014.8
01 05:56 Calm 16.09 Fair CLR 10 0 0% 76 1014.3
01 04:56 Calm 16.09 Fair CLR 11 0 0% 75.97 1014.1
01 03:56 Calm 16.09 Fair CLR 11.7 11.7 100% 75.97 1014.0
01 02:56 Calm 16.09 Partly Cloudy SCT080 12.8 10.6 87% 76.02 1014.6
01 01:56 Calm 16.09 Mostly Cloudy BKN085 13.9 8.3 21.7 13.9 69% 76.05 1015.0
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)