Walnut Creek December Weather Averages California, United States of America

December Weather Averages for Walnut Creek

High Temp	14°C	57°F
Low Temp	7°C	44°F
Avg Temp	10°C	50°F
Sunshine Hours	206 hours
Rainfall	103.11 mm	4.06 In
Rain days	6 days
Pressure	1020 mb	31 In

Walnut Creek December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	13°C / 55°F	4°C / 40°F	8°C / 47°F	265 hours	39.70 mm / 1.56 In	4 days	1019 mb / 31 In
2009	12°C / 54°F	5°C / 41°F	8°C / 47°F	201 hours	54.80 mm / 2.16 In	4 days	1018 mb / 31 In
2010	13°C / 56°F	7°C / 45°F	10°C / 50°F	138 hours	144.70 mm / 5.70 In	13 days	1017 mb / 31 In
2011	14°C / 58°F	5°C / 41°F	9°C / 48°F	317 hours	3.20 mm / 0.13 In	1 days	1022 mb / 31 In
2012	13°C / 55°F	6°C / 43°F	9°C / 49°F	207 hours	167.64 mm / 6.60 In	8 days	1018 mb / 31 In
2013	14°C / 58°F	5°C / 40°F	9°C / 48°F	325 hours	13.77 mm / 0.54 In	0 days	1021 mb / 31 In
2014	14°C / 58°F	9°C / 47°F	11°C / 52°F	143 hours	196.21 mm / 7.72 In	11 days	1019 mb / 31 In
2015	13°C / 55°F	6°C / 43°F	9°C / 49°F	213 hours	84.33 mm / 3.32 In	8 days	1020 mb / 31 In
2016	13°C / 55°F	6°C / 43°F	9°C / 48°F	243 hours	93.53 mm / 3.68 In	4 days	1020 mb / 31 In
2017	16°C / 61°F	8°C / 46°F	11°C / 53°F	275 hours	0.00 mm / 0.00 In	0 days	1022 mb / 31 In
2018	15°C / 58°F	8°C / 47°F	11°C / 52°F	229 hours	50.50 mm / 1.99 In	6 days	1021 mb / 31 In
2019	14°C / 57°F	9°C / 48°F	11°C / 52°F	127 hours	137.11 mm / 5.40 In	9 days	1018 mb / 31 In
2020	16°C / 60°F	8°C / 47°F	11°C / 53°F	260 hours	28.00 mm / 1.10 In	3 days	1022 mb / 31 In
2021	13°C / 56°F	7°C / 45°F	10°C / 49°F	189 hours	144.10 mm / 5.67 In	11 days	1016 mb / 30 In
2022	13°C / 55°F	6°C / 43°F	9°C / 48°F	145 hours	190.90 mm / 7.52 In	10 days	1018 mb / 31 In
2023	15°C / 59°F	9°C / 48°F	11°C / 53°F	180 hours	96.95 mm / 3.82 In	6 days	1019 mb / 31 In
2024	14°C / 57°F	7°C / 45°F	10°C / 50°F	97 hours	244.03 mm / 9.61 In	7 days	1022 mb / 31 In

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