Rialto December Weather Averages California, United States of America

December Weather Averages for Rialto

High Temp	17°C	63°F
Low Temp	5°C	42°F
Avg Temp	10°C	50°F
Sunshine Hours	278 hours
Rainfall	84.66 mm	3.33 In
Rain days	4 days
Pressure	1018 mb	31 In

Rialto December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	14°C / 58°F	2°C / 36°F	7°C / 45°F	256 hours	109.28 mm / 4.30 In	5 days	1018 mb / 31 In
2009	15°C / 58°F	2°C / 36°F	7°C / 45°F	267 hours	93.50 mm / 3.68 In	5 days	1017 mb / 31 In
2010	16°C / 62°F	5°C / 41°F	10°C / 49°F	255 hours	354.32 mm / 13.95 In	9 days	1016 mb / 30 In
2011	16°C / 61°F	2°C / 35°F	8°C / 46°F	335 hours	16.20 mm / 0.64 In	1 days	1020 mb / 31 In
2012	15°C / 59°F	3°C / 38°F	8°C / 47°F	286 hours	58.70 mm / 2.31 In	5 days	1017 mb / 31 In
2013	18°C / 65°F	4°C / 39°F	9°C / 49°F	332 hours	16.20 mm / 0.64 In	2 days	1019 mb / 31 In
2014	15°C / 59°F	6°C / 44°F	10°C / 50°F	260 hours	126.10 mm / 4.96 In	7 days	1018 mb / 31 In
2015	17°C / 62°F	4°C / 40°F	10°C / 49°F	330 hours	27.70 mm / 1.09 In	2 days	1018 mb / 31 In
2016	17°C / 62°F	6°C / 42°F	10°C / 50°F	282 hours	121.95 mm / 4.80 In	6 days	1018 mb / 31 In
2017	22°C / 72°F	8°C / 47°F	14°C / 58°F	348 hours	0.20 mm / 0.01 In	0 days	1020 mb / 31 In
2018	18°C / 65°F	7°C / 45°F	12°C / 54°F	311 hours	62.80 mm / 2.47 In	4 days	1019 mb / 31 In
2019	16°C / 60°F	6°C / 43°F	10°C / 51°F	201 hours	145.78 mm / 5.74 In	6 days	1018 mb / 31 In
2020	18°C / 65°F	6°C / 42°F	12°C / 53°F	314 hours	33.95 mm / 1.34 In	2 days	1019 mb / 31 In
2021	16°C / 60°F	5°C / 41°F	10°C / 49°F	213 hours	187.80 mm / 7.39 In	8 days	1016 mb / 30 In
2022	15°C / 60°F	5°C / 41°F	9°C / 49°F	196 hours	67.80 mm / 2.67 In	3 days	1018 mb / 31 In
2023	19°C / 66°F	6°C / 44°F	11°C / 52°F	247 hours	38.53 mm / 1.52 In	2 days	1018 mb / 31 In
2024	20°C / 67°F	9°C / 48°F	14°C / 56°F	268 hours	3.06 mm / 0.12 In	1 days	1020 mb / 31 In

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