Gaithersburg Weather History Maryland, United States of America

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Daily and hourly data from 1 Jan 2009 onwards.
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Tue 14 Oct, 2025 Weather in Gaithersburg

Sunrise: 07:18 AM Sunset: 06:31 PM	Moonrise: 12:05 AM Moonset: 03:25 PM	Max: 17.3 °c	Min: 12.8 °c	Avg: 14.1 °c	Precip: 0.20 mm	Max Wind: 22.3 kph

	Tue 14 0:00 am	Tue 14 3:00 am	Tue 14 6:00 am	Tue 14 9:00 am	Tue 14 12:00 pm	Tue 14 3:00 pm	Tue 14 6:00 pm	Tue 14 9:00 pm
Icon
Temp	12.9°c	12.9°c	13.0°c	12.9°c	13.6°c	15.6°c	16.5°c	14.2°c
Wind	19.4 kmph	19.8 kmph	19.8 kmph	17.3 kmph	18.0 kmph	22.3 kmph	19.1 kmph	14.4 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	100%	99%	100%	13%	100%	83%	30%	41%
Humidity	87%	88%	87%	83%	85%	78%	74%	85%
Pressure	997 mb	998 mb	1000 mb	1001 mb	1007 mb	1013 mb	1017 mb	1019 mb

Gaithersburg Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	4°C / 39°F	-3°C / 27°F	0°C / 33°F	173 hours	81.91 mm / 3.22 In	7 days	1019 mb / 31 In
February	7°C / 44°F	-2°C / 29°F	2°C / 36°F	155 hours	100.27 mm / 3.95 In	8 days	1019 mb / 31 In
March	12°C / 53°F	2°C / 36°F	7°C / 44°F	168 hours	97.11 mm / 3.82 In	7 days	1018 mb / 31 In
April	18°C / 64°F	7°C / 45°F	12°C / 54°F	175 hours	111.65 mm / 4.40 In	7 days	1016 mb / 30 In
May	23°C / 73°F	13°C / 55°F	18°C / 64°F	180 hours	140.92 mm / 5.55 In	10 days	1016 mb / 30 In
June	28°C / 82°F	18°C / 64°F	23°C / 73°F	218 hours	129.84 mm / 5.11 In	10 days	1014 mb / 30 In
July	31°C / 88°F	21°C / 69°F	26°C / 78°F	230 hours	151.77 mm / 5.98 In	10 days	1015 mb / 30 In
August	29°C / 85°F	20°C / 68°F	24°C / 75°F	215 hours	110.70 mm / 4.36 In	10 days	1016 mb / 30 In
September	26°C / 78°F	16°C / 61°F	21°C / 69°F	206 hours	139.34 mm / 5.49 In	7 days	1018 mb / 31 In
October	19°C / 66°F	10°C / 50°F	14°C / 58°F	203 hours	104.64 mm / 4.12 In	6 days	1018 mb / 31 In
November	12°C / 54°F	4°C / 39°F	8°C / 46°F	211 hours	84.12 mm / 3.31 In	5 days	1021 mb / 31 In
December	7°C / 45°F	0°C / 33°F	4°C / 39°F	178 hours	113.99 mm / 4.49 In	7 days	1020 mb / 31 In

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