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Gaithersburg - Montgomery County Airport
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D
a
t
e
Time
(edt)
Wind
(mph)
Vis.
(mi.)
WeatherSky Cond. Temperature (ºF)Relative
Humidity
Wind
Chill
(°F)
Heat
Index
(°F)
PressurePrecipitation (in.)
AirDwpt6 hour altimeter
(in)
sea level
(mb)
1 hr 3 hr6 hr
Max.Min.
1319:56S 710.00FairCLR7049 777047%NANA30.011017.5
1318:56S 1210.00FairCLR7349 43%NANA30.011017.5
1317:56S 810.00FairCLR7751 40%NA7830.011017.5
1316:56S 12 G 1710.00FairCLR7752 42%NA7830.011017.4
1315:56Vrbl 710.00FairCLR7649 39%NA7830.011017.6
1314:56S 9 G 1610.00FairCLR7651 42%NA7830.041018.4
1313:56Vrbl 310.00FairCLR7450 755043%NANA30.051018.7
1312:56Vrbl 610.00FairCLR7351 46%NANA30.071019.5
1311:56S 710.00FairCLR7150 47%NANA30.081019.8
1310:56S 810.00FairCLR6850 53%NANA30.101020.6
1309:56W 510.00FairCLR6352 68%NANA30.111020.7
1308:56Vrbl 39.00Mostly CloudyBKN0025453 97%NANA30.101020.6
1307:56SE 50.50 FogOVC0025050 5045100%48NA30.091020.4
1306:56Calm0.25 FogOVC0024747 100%NANA30.071019.7
1305:56SE 30.25 FogBKN0024545 100%NANA30.061019.2
1304:56Calm5.00 Fog/MistCLR4545 100%NANA30.051019.1
1303:56Calm2.50 Fog/MistCLR4545 100%NANA30.051019.0
1302:56Calm6.00 Fog/MistCLR4646 100%NANA30.041018.5
1301:56Calm4.00 Fog/MistCLR4747 6047100%NANA30.041018.8
1300:56Calm7.00FairCLR4848 100%NANA30.041018.8
1223:56Calm10.00FairCLR4949 100%NANA30.041018.6
1222:56Calm10.00FairCLR5150 96%NANA30.021018.1
1221:56SE 310.00FairCLR5351 93%NANA30.001017.2
1220:56Vrbl 310.00OvercastBKN060 OVC0805750 78%NANA29.981016.5
1219:56NW 310.00OvercastOVC0756046 645960%NANA29.961016.0
1218:56NW 810.00Mostly CloudyBKN0756246 56%NANA29.941015.1
1217:56NW 910.00OvercastOVC0756247 58%NANA29.931014.9
1216:56NW 1010.00OvercastOVC0756448 56%NANA29.911014.0
1215:56NW 14 G 2010.00OvercastSCT065 OVC0806349 60%NANA29.901013.9
1214:56NW 9 G 2310.00OvercastFEW041 BKN060 OVC0756046 60%NANA29.891013.7
1213:56NW 13 G 1710.00Mostly CloudyFEW043 BKN0706249 635062%NANA29.881013.10.010.01
1212:56NW 12 G 1810.00OvercastFEW039 OVC0806046 60%NANA29.881013.1
1211:56NW 14 G 2110.00OvercastFEW034 BKN055 OVC0705948 67%NANA29.871013.0
1210:56W 14 G 2310.00OvercastBKN036 BKN043 OVC0605746 67%NANA29.871012.7
1209:56W 14 G 2110.00Mostly CloudyFEW022 BKN029 BKN0365948 67%NANA29.851012.1
1208:56W 610.00FairCLR5652 87%NANA29.851012.2
1207:56W 510.00Partly CloudySCT0475050 5046100%48NA29.841011.90.010.07
1206:56Calm6.00 Fog/MistSCT0904747 100%NANA29.831011.8
1205:56SW 510.00 Light RainFEW022 BKN039 OVC0554848 100%46NA29.821011.30.06
1204:48Calm4.00 Fog/MistBKN006 OVC0954747 100%NANA29.811010.7
1203:56Calm8.00OvercastOVC0904747 100%NANA29.801010.5
1202:56Calm10.00OvercastOVC0904747 100%NANA29.801010.5
1201:56S 310.00OvercastBKN003 OVC1004847 534696%NANA29.811010.90.37
1200:56Calm10.00Mostly CloudyBKN1004747 100%NANA29.811011.00.04
1123:56Calm3.00 Thunderstorm Rain Fog/MistFEW012 BKN025 OVC0504746 97%NANA29.841011.90.33
1122:56SE 910.00Mostly CloudySCT040 SCT085 BKN1205151 100%NANA29.801010.4
1121:56SE 810.00Partly CloudyFEW037 SCT0605251 97%NANA29.821011.2
1120:56SE 710.00Mostly CloudyBKN0655252 100%NANA29.821011.1
1119:56Calm10.00Mostly CloudyBKN065 BKN0855352 665396%NANA29.821011.30.030.21
1118:56S 52.00 Rain Fog/MistSCT035 BKN055 OVC0655352 96%NANA29.831011.60.18
1117:56Vrbl 510.00 Light RainFEW047 BKN055 OVC0706046 60%NANA29.801010.4
1116:56SE 910.00 Light RainFEW033 OVC0856044 56%NANA29.781009.8
1115:56SE 910.00A Few CloudsFEW0496445 50%NANA29.781009.7
1114:56SE 910.00Partly CloudySCT0496545 49%NANA29.801010.6
1113:56S 610.00OvercastBKN045 OVC0606445 654750%NANA29.841011.7
1112:56Vrbl 310.00OvercastOVC0416044 56%NANA29.851012.1
1111:56Vrbl 310.00Mostly CloudyBKN0416246 56%NANA29.871012.6
1110:56SW 710.00FairCLR6145 56%NANA29.881013.2
1109:56SW 610.00FairCLR5645 67%NANA29.881013.3
1108:56Calm10.00Mostly CloudyBKN0375046 86%NANA29.891013.8
1107:56Calm10.00Mostly CloudyBKN0374747 4741100%NANA29.891013.6
1106:56Calm10.00OvercastOVC0374343 100%NANA29.891013.8
1105:56Calm0.50 FogSCT0354242 100%NANA29.871012.9
1104:56Calm8.00FairCLR4242 100%NANA29.861012.7
1103:56Calm10.00Mostly CloudyBKN0354544 97%NANA29.861012.7
1102:56Calm3.00 Fog/MistSCT037 BKN0804545 100%NANA29.871012.9
1101:56Calm10.00OvercastOVC0504747 5047100%NANA29.871013.2
1100:56Calm10.00OvercastFEW010 OVC0424847 96%NANA29.881013.4
1023:56Vrbl 510.00OvercastBKN011 OVC0354948 97%47NA29.871013.1
1022:56Calm10.00OvercastBKN013 OVC0214949 100%NANA29.851012.5
1021:56Vrbl 310.00OvercastFEW010 BKN015 OVC0394949 100%NANA29.841011.9
D
a
t
e
Time
(edt)
Wind
(mph)
Vis.
(mi.)
WeatherSky Cond. AirDwptMax.Min.Relative
Humidity
Wind
Chill
(°F)
Heat
Index
(°F)
altimeter
(in.)
sea level
(mb)
1 hr3 hr6 hr
6 hour
Temperature (ºF)PressurePrecipitation (in.)

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Last Modified: Febuary, 7 2012
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