San Mateo December Weather Averages California, United States of America

December Weather Averages for San Mateo

High Temp	14°C	57°F
Low Temp	9°C	48°F
Avg Temp	11°C	52°F
Sunshine Hours	205 hours
Rainfall	107.68 mm	4.24 In
Rain days	6 days
Pressure	1019 mb	31 In

San Mateo December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	13°C / 56°F	6°C / 44°F	10°C / 49°F	261 hours	55.80 mm / 2.20 In	6 days	1019 mb / 31 In
2009	13°C / 55°F	7°C / 44°F	9°C / 49°F	200 hours	69.61 mm / 2.74 In	6 days	1018 mb / 31 In
2010	13°C / 56°F	9°C / 49°F	11°C / 52°F	137 hours	130.40 mm / 5.13 In	11 days	1017 mb / 31 In
2011	14°C / 58°F	7°C / 45°F	10°C / 51°F	325 hours	3.40 mm / 0.13 In	0 days	1022 mb / 31 In
2012	13°C / 56°F	9°C / 48°F	11°C / 52°F	175 hours	162.03 mm / 6.38 In	10 days	1018 mb / 31 In
2013	15°C / 58°F	6°C / 44°F	10°C / 50°F	332 hours	10.00 mm / 0.39 In	1 days	1021 mb / 31 In
2014	15°C / 59°F	11°C / 52°F	13°C / 55°F	163 hours	199.70 mm / 7.86 In	10 days	1018 mb / 31 In
2015	13°C / 56°F	9°C / 48°F	11°C / 52°F	233 hours	105.20 mm / 4.14 In	9 days	1021 mb / 31 In
2016	13°C / 56°F	8°C / 46°F	10°C / 51°F	240 hours	77.00 mm / 3.03 In	5 days	1020 mb / 31 In
2017	16°C / 61°F	9°C / 48°F	12°C / 54°F	282 hours	1.60 mm / 0.06 In	0 days	1022 mb / 31 In
2018	15°C / 59°F	11°C / 51°F	13°C / 55°F	222 hours	62.63 mm / 2.47 In	5 days	1021 mb / 31 In
2019	14°C / 57°F	10°C / 51°F	12°C / 54°F	146 hours	149.88 mm / 5.90 In	11 days	1018 mb / 31 In
2020	15°C / 59°F	9°C / 48°F	12°C / 53°F	263 hours	35.50 mm / 1.40 In	2 days	1021 mb / 31 In
2021	13°C / 56°F	9°C / 48°F	11°C / 51°F	179 hours	174.10 mm / 6.85 In	11 days	1016 mb / 30 In
2022	13°C / 56°F	8°C / 46°F	10°C / 51°F	146 hours	231.70 mm / 9.12 In	9 days	1018 mb / 31 In
2023	15°C / 59°F	10°C / 50°F	12°C / 54°F	173 hours	93.17 mm / 3.67 In	6 days	1019 mb / 31 In
2024	13°C / 55°F	8°C / 47°F	10°C / 51°F	59 hours	216.89 mm / 8.54 In	7 days	1022 mb / 31 In

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