Diamond Bar January Weather Averages California, United States of America

January Weather Averages for Diamond Bar

High Temp	18°C	64°F
Low Temp	9°C	47°F
Avg Temp	13°C	55°F
Sunshine Hours	281 hours
Rainfall	68.42 mm	2.69 In
Rain days	4 days
Pressure	1019 mb	31 In

Diamond Bar January Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	14°C / 57°F	6°C / 42°F	9°C / 49°F	245 hours	218.58 mm / 8.61 In	7 days	1019 mb / 31 In
2009	19°C / 66°F	8°C / 47°F	13°C / 55°F	307 hours	11.30 mm / 0.44 In	2 days	1021 mb / 31 In
2010	16°C / 62°F	7°C / 45°F	11°C / 52°F	281 hours	201.96 mm / 7.95 In	7 days	1016 mb / 30 In
2011	17°C / 63°F	7°C / 45°F	11°C / 52°F	313 hours	18.91 mm / 0.74 In	3 days	1020 mb / 31 In
2012	19°C / 66°F	8°C / 46°F	13°C / 55°F	319 hours	23.80 mm / 0.94 In	2 days	1020 mb / 31 In
2013	16°C / 61°F	5°C / 41°F	10°C / 50°F	290 hours	18.90 mm / 0.74 In	2 days	1021 mb / 31 In
2014	21°C / 70°F	9°C / 49°F	15°C / 58°F	333 hours	2.60 mm / 0.10 In	1 days	1019 mb / 31 In
2015	20°C / 68°F	9°C / 48°F	14°C / 57°F	304 hours	18.80 mm / 0.74 In	4 days	1020 mb / 31 In
2016	17°C / 62°F	7°C / 45°F	12°C / 53°F	221 hours	104.54 mm / 4.12 In	4 days	1019 mb / 31 In
2017	15°C / 60°F	7°C / 45°F	11°C / 52°F	242 hours	217.93 mm / 8.58 In	10 days	1019 mb / 31 In
2018	22°C / 72°F	12°C / 54°F	17°C / 62°F	329 hours	61.12 mm / 2.41 In	2 days	1020 mb / 31 In
2019	18°C / 64°F	10°C / 50°F	14°C / 56°F	257 hours	122.60 mm / 4.83 In	7 days	1020 mb / 31 In
2020	18°C / 65°F	10°C / 50°F	13°C / 56°F	299 hours	7.40 mm / 0.29 In	0 days	1020 mb / 31 In
2021	19°C / 66°F	10°C / 50°F	14°C / 57°F	284 hours	64.04 mm / 2.52 In	3 days	1018 mb / 31 In
2022	19°C / 66°F	9°C / 49°F	13°C / 56°F	264 hours	8.50 mm / 0.33 In	1 days	1019 mb / 31 In
2023	15°C / 59°F	8°C / 46°F	11°C / 51°F	197 hours	203.10 mm / 8.00 In	10 days	1018 mb / 31 In
2024	16°C / 61°F	10°C / 50°F	13°C / 55°F	269 hours	45.27 mm / 1.78 In	3 days	1017 mb / 31 In
2025	17°C / 63°F	8°C / 47°F	12°C / 54°F	264 hours	32.32 mm / 1.27 In	2 days	1021 mb / 31 In

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