Half Moon Bay December Weather Averages California, United States of America

December Weather Averages for Half Moon Bay

High Temp	14°C	56°F
Low Temp	9°C	49°F
Avg Temp	11°C	52°F
Sunshine Hours	199 hours
Rainfall	108.61 mm	4.28 In
Rain days	6 days
Pressure	1019 mb	31 In

Half Moon Bay 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	269 hours	39.40 mm / 1.55 In	6 days	1019 mb / 31 In
2009	13°C / 55°F	7°C / 45°F	10°C / 49°F	199 hours	59.75 mm / 2.35 In	5 days	1018 mb / 31 In
2010	13°C / 56°F	10°C / 50°F	12°C / 53°F	133 hours	138.59 mm / 5.46 In	11 days	1017 mb / 31 In
2011	14°C / 57°F	8°C / 47°F	11°C / 52°F	322 hours	2.50 mm / 0.10 In	0 days	1022 mb / 31 In
2012	13°C / 56°F	10°C / 50°F	12°C / 53°F	175 hours	155.45 mm / 6.12 In	9 days	1018 mb / 31 In
2013	14°C / 57°F	8°C / 46°F	11°C / 51°F	323 hours	9.97 mm / 0.39 In	1 days	1021 mb / 31 In
2014	15°C / 59°F	12°C / 53°F	14°C / 56°F	154 hours	212.29 mm / 8.36 In	10 days	1018 mb / 31 In
2015	13°C / 56°F	9°C / 49°F	11°C / 52°F	220 hours	91.33 mm / 3.60 In	8 days	1021 mb / 31 In
2016	12°C / 54°F	8°C / 47°F	10°C / 51°F	233 hours	90.96 mm / 3.58 In	4 days	1020 mb / 31 In
2017	15°C / 59°F	9°C / 49°F	12°C / 54°F	279 hours	0.80 mm / 0.03 In	0 days	1022 mb / 31 In
2018	14°C / 58°F	10°C / 51°F	12°C / 54°F	215 hours	57.98 mm / 2.28 In	5 days	1021 mb / 31 In
2019	13°C / 56°F	10°C / 51°F	12°C / 53°F	138 hours	152.43 mm / 6.00 In	11 days	1018 mb / 31 In
2020	14°C / 57°F	9°C / 48°F	11°C / 52°F	258 hours	27.30 mm / 1.07 In	2 days	1021 mb / 31 In
2021	13°C / 56°F	9°C / 48°F	11°C / 52°F	175 hours	150.00 mm / 5.91 In	10 days	1016 mb / 30 In
2022	13°C / 55°F	8°C / 47°F	10°C / 50°F	144 hours	216.76 mm / 8.53 In	9 days	1018 mb / 31 In
2023	15°C / 58°F	11°C / 51°F	12°C / 54°F	173 hours	112.54 mm / 4.43 In	7 days	1019 mb / 31 In
2024	13°C / 55°F	9°C / 48°F	11°C / 51°F	50 hours	259.10 mm / 10.20 In	8 days	1022 mb / 31 In

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