Napa December Weather Averages California, United States of America

December Weather Averages for Napa

High Temp	13°C	55°F
Low Temp	5°C	41°F
Avg Temp	8°C	47°F
Sunshine Hours	201 hours
Rainfall	153.51 mm	6.04 In
Rain days	7 days
Pressure	1020 mb	31 In

Napa December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	11°C / 52°F	4°C / 39°F	7°C / 45°F	199 hours	60.93 mm / 2.40 In	5 days	1018 mb / 31 In
2010	12°C / 53°F	5°C / 42°F	8°C / 47°F	126 hours	180.34 mm / 7.10 In	12 days	1017 mb / 30 In
2011	13°C / 56°F	3°C / 38°F	8°C / 46°F	320 hours	4.10 mm / 0.16 In	2 days	1022 mb / 31 In
2012	11°C / 52°F	4°C / 39°F	8°C / 46°F	192 hours	253.58 mm / 9.98 In	8 days	1018 mb / 31 In
2013	14°C / 57°F	3°C / 37°F	8°C / 46°F	335 hours	11.51 mm / 0.45 In	1 days	1021 mb / 31 In
2014	14°C / 57°F	8°C / 46°F	10°C / 51°F	114 hours	227.91 mm / 8.97 In	12 days	1019 mb / 31 In
2015	11°C / 52°F	4°C / 39°F	8°C / 46°F	186 hours	87.61 mm / 3.45 In	8 days	1020 mb / 31 In
2016	11°C / 53°F	3°C / 38°F	7°C / 45°F	251 hours	110.64 mm / 4.36 In	4 days	1020 mb / 31 In
2017	15°C / 59°F	6°C / 42°F	10°C / 49°F	264 hours	0.10 mm / 0.00 In	0 days	1023 mb / 31 In
2018	13°C / 56°F	6°C / 42°F	9°C / 48°F	203 hours	62.67 mm / 2.47 In	4 days	1021 mb / 31 In
2019	12°C / 54°F	6°C / 43°F	9°C / 48°F	131 hours	166.33 mm / 6.55 In	9 days	1018 mb / 31 In
2020	14°C / 58°F	5°C / 42°F	9°C / 49°F	265 hours	39.06 mm / 1.54 In	4 days	1022 mb / 31 In
2021	12°C / 53°F	5°C / 41°F	8°C / 46°F	206 hours	163.60 mm / 6.44 In	10 days	1016 mb / 30 In
2022	11°C / 53°F	4°C / 39°F	7°C / 45°F	154 hours	184.60 mm / 7.27 In	12 days	1018 mb / 31 In
2023	14°C / 57°F	6°C / 42°F	9°C / 48°F	172 hours	109.64 mm / 4.32 In	7 days	1019 mb / 31 In
2024	14°C / 57°F	6°C / 42°F	9°C / 49°F	125 hours	462.48 mm / 18.21 In	8 days	1022 mb / 31 In
2025	16°C / 61°F	7°C / 45°F	11°C / 52°F	166 hours	484.50 mm / 19.07 In	9 days	1019 mb / 31 In

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