Hyannis December Weather Averages Massachusetts, United States of America

December Weather Averages for Hyannis

High Temp	7°C	44°F
Low Temp	3°C	37°F
Avg Temp	5°C	41°F
Sunshine Hours	154 hours
Rainfall	150.60 mm	5.93 In
Rain days	8 days
Pressure	1017 mb	31 In

Hyannis December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	6°C / 43°F	1°C / 34°F	4°C / 38°F	179 hours	185.73 mm / 7.31 In	10 days	1015 mb / 30 In
2010	4°C / 40°F	1°C / 33°F	3°C / 37°F	165 hours	133.90 mm / 5.27 In	7 days	1008 mb / 30 In
2011	10°C / 49°F	5°C / 41°F	7°C / 45°F	183 hours	96.69 mm / 3.81 In	6 days	1020 mb / 31 In
2012	8°C / 47°F	4°C / 40°F	6°C / 44°F	143 hours	172.38 mm / 6.79 In	9 days	1015 mb / 30 In
2013	7°C / 44°F	2°C / 35°F	4°C / 39°F	149 hours	121.59 mm / 4.79 In	11 days	1019 mb / 31 In
2014	8°C / 46°F	4°C / 40°F	6°C / 43°F	89 hours	126.90 mm / 5.00 In	9 days	1019 mb / 31 In
2015	11°C / 51°F	7°C / 45°F	9°C / 48°F	89 hours	116.63 mm / 4.59 In	11 days	1019 mb / 31 In
2016	6°C / 44°F	2°C / 36°F	4°C / 40°F	161 hours	80.41 mm / 3.17 In	9 days	1018 mb / 31 In
2017	4°C / 40°F	1°C / 33°F	2°C / 36°F	144 hours	69.69 mm / 2.74 In	8 days	1017 mb / 31 In
2018	6°C / 42°F	2°C / 36°F	4°C / 39°F	216 hours	89.99 mm / 3.54 In	5 days	1019 mb / 31 In
2019	6°C / 43°F	2°C / 35°F	4°C / 39°F	176 hours	230.82 mm / 9.09 In	11 days	1017 mb / 30 In
2020	7°C / 44°F	2°C / 35°F	5°C / 40°F	123 hours	255.07 mm / 10.04 In	7 days	1016 mb / 30 In
2021	8°C / 47°F	4°C / 38°F	6°C / 43°F	130 hours	42.50 mm / 1.67 In	5 days	1017 mb / 30 In
2022	7°C / 44°F	3°C / 37°F	5°C / 40°F	168 hours	102.26 mm / 4.03 In	5 days	1020 mb / 31 In
2023	8°C / 47°F	4°C / 40°F	6°C / 43°F	173 hours	114.54 mm / 4.51 In	5 days	1019 mb / 31 In
2024	6°C / 42°F	2°C / 35°F	4°C / 39°F	149 hours	348.87 mm / 13.74 In	9 days	1021 mb / 31 In
2025	4°C / 40°F	-1°C / 30°F	2°C / 35°F	176 hours	272.20 mm / 10.72 In	5 days	1014 mb / 30 In

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