Potomac Weather History Maryland, United States of America

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
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Thu 29 Jan, 2026 Weather in Potomac

Sunrise: 07:18 AM Sunset: 05:27 PM	Moonrise: 01:39 PM Moonset: 04:41 AM	Max: -5.9 °c	Min: -12.4 °c	Avg: -9.0 °c	Precip: 0.00 mm	Max Wind: 15.8 kph

	Thu 29 0:00 am	Thu 29 3:00 am	Thu 29 6:00 am	Thu 29 9:00 am	Thu 29 12:00 pm	Thu 29 3:00 pm	Thu 29 6:00 pm	Thu 29 9:00 pm
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Temp	-9.3°c	-10.6°c	-12.1°c	-10.7°c	-7.3°c	-5.9°c	-7.2°c	-9.0°c
Wind	10.1 kmph	8.6 kmph	8.3 kmph	10.1 kmph	15.8 kmph	14.0 kmph	5.8 kmph	9.4 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	18%	17%	0%	8%	11%	16%	13%	16%
Humidity	69%	70%	67%	65%	65%	64%	62%	61%
Pressure	1022 mb	1022 mb	1023 mb	1025 mb	1025 mb	1024 mb	1025 mb	1026 mb

Potomac Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	4°C / 40°F	-3°C / 27°F	1°C / 33°F	169 hours	81.24 mm / 3.20 In	7 days	1019 mb / 31 In
February	7°C / 45°F	-1°C / 30°F	3°C / 37°F	151 hours	100.56 mm / 3.96 In	7 days	1019 mb / 31 In
March	12°C / 54°F	3°C / 37°F	7°C / 45°F	166 hours	96.20 mm / 3.79 In	7 days	1018 mb / 31 In
April	18°C / 65°F	8°C / 46°F	13°C / 55°F	176 hours	116.02 mm / 4.57 In	7 days	1016 mb / 30 In
May	23°C / 74°F	13°C / 56°F	18°C / 65°F	177 hours	140.18 mm / 5.52 In	10 days	1016 mb / 30 In
June	28°C / 83°F	18°C / 65°F	23°C / 73°F	216 hours	132.66 mm / 5.22 In	10 days	1014 mb / 30 In
July	31°C / 88°F	21°C / 70°F	26°C / 79°F	228 hours	155.70 mm / 6.13 In	11 days	1015 mb / 30 In
August	30°C / 85°F	20°C / 68°F	25°C / 76°F	212 hours	125.12 mm / 4.93 In	10 days	1016 mb / 30 In
September	26°C / 79°F	17°C / 62°F	21°C / 70°F	202 hours	141.48 mm / 5.57 In	7 days	1018 mb / 31 In
October	19°C / 67°F	11°C / 51°F	15°C / 59°F	202 hours	118.78 mm / 4.68 In	6 days	1018 mb / 31 In
November	12°C / 54°F	4°C / 40°F	8°C / 47°F	209 hours	92.58 mm / 3.64 In	5 days	1020 mb / 31 In
December	7°C / 45°F	1°C / 33°F	4°C / 39°F	174 hours	122.32 mm / 4.82 In	7 days	1020 mb / 31 In

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