Fullerton December Weather Averages California, United States of America

December Weather Averages for Fullerton

High Temp	19°C	66°F
Low Temp	10°C	50°F
Avg Temp	14°C	57°F
Sunshine Hours	273 hours
Rainfall	70.09 mm	2.76 In
Rain days	3 days
Pressure	1018 mb	31 In

Fullerton December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	17°C / 63°F	7°C / 45°F	12°C / 53°F	263 hours	54.91 mm / 2.16 In	3 days	1017 mb / 31 In
2010	18°C / 64°F	9°C / 48°F	13°C / 55°F	239 hours	249.82 mm / 9.84 In	8 days	1017 mb / 30 In
2011	18°C / 65°F	7°C / 44°F	12°C / 53°F	341 hours	24.47 mm / 0.96 In	2 days	1020 mb / 31 In
2012	17°C / 63°F	9°C / 48°F	12°C / 54°F	256 hours	37.30 mm / 1.47 In	6 days	1017 mb / 31 In
2013	20°C / 69°F	8°C / 47°F	14°C / 56°F	327 hours	6.20 mm / 0.24 In	1 days	1019 mb / 31 In
2014	17°C / 63°F	10°C / 50°F	13°C / 56°F	264 hours	106.54 mm / 4.19 In	6 days	1018 mb / 31 In
2015	19°C / 67°F	8°C / 47°F	13°C / 56°F	327 hours	21.30 mm / 0.84 In	2 days	1018 mb / 31 In
2016	19°C / 66°F	10°C / 49°F	14°C / 56°F	268 hours	86.30 mm / 3.40 In	5 days	1018 mb / 31 In
2017	23°C / 74°F	12°C / 54°F	17°C / 63°F	342 hours	0.20 mm / 0.01 In	0 days	1020 mb / 31 In
2018	20°C / 67°F	12°C / 53°F	15°C / 60°F	311 hours	61.53 mm / 2.42 In	2 days	1019 mb / 31 In
2019	18°C / 65°F	11°C / 52°F	14°C / 57°F	220 hours	135.28 mm / 5.33 In	4 days	1018 mb / 31 In
2020	21°C / 70°F	11°C / 52°F	16°C / 60°F	307 hours	21.94 mm / 0.86 In	1 days	1019 mb / 31 In
2021	18°C / 64°F	10°C / 50°F	13°C / 56°F	219 hours	133.50 mm / 5.26 In	8 days	1016 mb / 30 In
2022	18°C / 64°F	10°C / 50°F	13°C / 56°F	179 hours	56.30 mm / 2.22 In	2 days	1018 mb / 31 In
2023	21°C / 69°F	13°C / 55°F	16°C / 61°F	237 hours	55.77 mm / 2.20 In	0 days	1017 mb / 31 In

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