South San Francisco December Weather Averages California, United States of America

December Weather Averages for South San Francisco

High Temp	14°C	57°F
Low Temp	9°C	48°F
Avg Temp	11°C	52°F
Sunshine Hours	203 hours
Rainfall	120.44 mm	4.74 In
Rain days	7 days
Pressure	1019 mb	31 In

South San Francisco December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	13°C / 56°F	7°C / 45°F	10°C / 50°F	277 hours	59.20 mm / 2.33 In	6 days	1019 mb / 31 In
2009	13°C / 55°F	7°C / 45°F	10°C / 49°F	204 hours	71.90 mm / 2.83 In	6 days	1018 mb / 31 In
2010	13°C / 56°F	9°C / 49°F	11°C / 52°F	144 hours	181.65 mm / 7.15 In	13 days	1017 mb / 31 In
2011	14°C / 58°F	8°C / 46°F	11°C / 51°F	319 hours	4.90 mm / 0.19 In	0 days	1022 mb / 31 In
2012	13°C / 56°F	9°C / 48°F	11°C / 52°F	184 hours	194.11 mm / 7.64 In	9 days	1018 mb / 31 In
2013	14°C / 57°F	7°C / 45°F	10°C / 51°F	334 hours	8.30 mm / 0.33 In	0 days	1021 mb / 31 In
2014	15°C / 58°F	12°C / 53°F	13°C / 55°F	146 hours	249.40 mm / 9.82 In	14 days	1018 mb / 31 In
2015	13°C / 56°F	9°C / 48°F	11°C / 52°F	210 hours	118.02 mm / 4.65 In	8 days	1020 mb / 31 In
2016	13°C / 55°F	8°C / 47°F	10°C / 51°F	241 hours	108.87 mm / 4.29 In	5 days	1020 mb / 31 In
2017	16°C / 60°F	9°C / 49°F	12°C / 54°F	271 hours	3.20 mm / 0.13 In	0 days	1022 mb / 31 In
2018	15°C / 58°F	10°C / 51°F	12°C / 54°F	222 hours	71.20 mm / 2.80 In	7 days	1021 mb / 31 In
2019	14°C / 56°F	10°C / 51°F	12°C / 54°F	149 hours	192.87 mm / 7.59 In	12 days	1018 mb / 31 In
2020	14°C / 57°F	9°C / 49°F	12°C / 53°F	261 hours	45.00 mm / 1.77 In	4 days	1021 mb / 31 In
2021	13°C / 55°F	9°C / 48°F	11°C / 51°F	183 hours	159.29 mm / 6.27 In	10 days	1016 mb / 30 In
2022	13°C / 55°F	8°C / 47°F	10°C / 50°F	152 hours	189.30 mm / 7.45 In	10 days	1018 mb / 31 In
2023	15°C / 59°F	11°C / 51°F	12°C / 54°F	175 hours	107.12 mm / 4.22 In	6 days	1019 mb / 31 In
2024	12°C / 54°F	9°C / 48°F	10°C / 51°F	60 hours	221.89 mm / 8.74 In	8 days	1022 mb / 31 In

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