Napa Weather History California, 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.
Yearly Monthly Averages
Monthly Climate Data
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Fri 17 Apr, 2026 Weather in Napa

Sunrise: 06:30 AM Sunset: 07:48 PM	Moonrise: 06:19 AM Moonset: 08:36 PM	Max: 22.5 °c	Min: 8.8 °c	Avg: 14.6 °c	Precip: 0.00 mm	Max Wind: 11.9 kph

	Fri 17 0:00 am	Fri 17 3:00 am	Fri 17 6:00 am	Fri 17 9:00 am	Fri 17 12:00 pm	Fri 17 3:00 pm	Fri 17 6:00 pm	Fri 17 9:00 pm
Icon
Temp	9.9°c	8.9°c	9.0°c	14.2°c	20.5°c	22.5°c	18.8°c	12.9°c
Wind	11.9 kmph	10.4 kmph	6.1 kmph	4.3 kmph	3.6 kmph	8.3 kmph	11.5 kmph	5.4 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	0%	0%	0%	0%	0%	0%	0%	0%
Humidity	23%	24%	30%	32%	27%	27%	39%	65%
Pressure	1019 mb	1019 mb	1019 mb	1019 mb	1019 mb	1018 mb	1017 mb	1018 mb

Napa Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	14°C / 58°F	6°C / 43°F	10°C / 50°F	212 hours	116.95 mm / 4.60 In	6 days	1020 mb / 31 In
February	16°C / 60°F	7°C / 44°F	11°C / 51°F	195 hours	122.86 mm / 4.84 In	5 days	1018 mb / 31 In
March	17°C / 63°F	7°C / 45°F	12°C / 53°F	193 hours	103.43 mm / 4.07 In	7 days	1018 mb / 31 In
April	20°C / 68°F	9°C / 47°F	14°C / 57°F	245 hours	30.08 mm / 1.18 In	3 days	1017 mb / 31 In
May	23°C / 74°F	11°C / 51°F	16°C / 62°F	294 hours	15.83 mm / 0.62 In	2 days	1015 mb / 30 In
June	27°C / 81°F	13°C / 55°F	19°C / 67°F	319 hours	4.81 mm / 0.19 In	1 days	1013 mb / 30 In
July	29°C / 84°F	14°C / 57°F	20°C / 68°F	341 hours	0.54 mm / 0.02 In	0 days	1013 mb / 30 In
August	29°C / 84°F	14°C / 58°F	20°C / 69°F	345 hours	0.21 mm / 0.01 In	0 days	1013 mb / 30 In
September	28°C / 83°F	14°C / 58°F	20°C / 69°F	318 hours	4.48 mm / 0.18 In	0 days	1013 mb / 30 In
October	24°C / 75°F	13°C / 55°F	18°C / 64°F	290 hours	36.75 mm / 1.45 In	2 days	1015 mb / 30 In
November	18°C / 64°F	9°C / 48°F	13°C / 55°F	244 hours	75.98 mm / 2.99 In	4 days	1018 mb / 31 In
December	14°C / 56°F	7°C / 44°F	10°C / 49°F	200 hours	142.07 mm / 5.59 In	7 days	1020 mb / 31 In

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