Sunnyvale December Weather Averages California, United States of America

December Weather Averages for Sunnyvale

High Temp	15°C	58°F
Low Temp	8°C	46°F
Avg Temp	11°C	51°F
Sunshine Hours	212 hours
Rainfall	139.10 mm	5.48 In
Rain days	6 days
Pressure	1020 mb	31 In

Sunnyvale December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	13°C / 56°F	5°C / 41°F	9°C / 47°F	260 hours	69.60 mm / 2.74 In	6 days	1019 mb / 31 In
2009	13°C / 56°F	5°C / 42°F	9°C / 48°F	206 hours	123.40 mm / 4.86 In	9 days	1018 mb / 31 In
2010	14°C / 57°F	7°C / 45°F	10°C / 50°F	146 hours	215.66 mm / 8.49 In	11 days	1017 mb / 31 In
2011	14°C / 58°F	5°C / 41°F	9°C / 48°F	314 hours	2.10 mm / 0.08 In	0 days	1022 mb / 31 In
2012	13°C / 56°F	7°C / 44°F	10°C / 50°F	194 hours	225.70 mm / 8.89 In	12 days	1018 mb / 31 In
2013	15°C / 60°F	5°C / 41°F	9°C / 49°F	323 hours	10.90 mm / 0.43 In	0 days	1021 mb / 31 In
2014	14°C / 58°F	9°C / 49°F	12°C / 53°F	160 hours	255.60 mm / 10.06 In	11 days	1018 mb / 31 In
2015	14°C / 57°F	7°C / 45°F	10°C / 50°F	232 hours	118.46 mm / 4.66 In	6 days	1021 mb / 31 In
2016	14°C / 57°F	7°C / 44°F	10°C / 50°F	254 hours	137.50 mm / 5.41 In	5 days	1020 mb / 31 In
2017	18°C / 64°F	9°C / 48°F	12°C / 54°F	292 hours	1.90 mm / 0.07 In	0 days	1022 mb / 31 In
2018	15°C / 60°F	10°C / 50°F	12°C / 54°F	247 hours	65.82 mm / 2.59 In	6 days	1021 mb / 31 In
2019	15°C / 59°F	10°C / 50°F	12°C / 54°F	133 hours	239.00 mm / 9.41 In	12 days	1018 mb / 31 In
2020	16°C / 61°F	9°C / 48°F	12°C / 54°F	269 hours	45.50 mm / 1.79 In	1 days	1022 mb / 31 In
2021	14°C / 57°F	8°C / 46°F	10°C / 50°F	171 hours	240.80 mm / 9.48 In	9 days	1016 mb / 30 In
2022	14°C / 57°F	7°C / 44°F	10°C / 49°F	149 hours	285.60 mm / 11.24 In	11 days	1018 mb / 31 In
2023	16°C / 61°F	9°C / 48°F	12°C / 53°F	185 hours	86.49 mm / 3.40 In	5 days	1019 mb / 31 In
2024	15°C / 59°F	8°C / 47°F	11°C / 52°F	123 hours	171.18 mm / 6.74 In	5 days	1022 mb / 31 In

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