Portland December Weather Averages Tennessee, United States of America

December Weather Averages for Portland

High Temp	9°C	48°F
Low Temp	2°C	35°F
Avg Temp	5°C	42°F
Sunshine Hours	144 hours
Rainfall	172.58 mm	6.79 In
Rain days	8 days
Pressure	1021 mb	31 In

Portland December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2009	7°C / 45°F	-1°C / 31°F	3°C / 37°F	161 hours	124.59 mm / 4.91 In	7 days	1019 mb / 31 In
2010	3°C / 38°F	-4°C / 25°F	-1°C / 31°F	144 hours	67.06 mm / 2.64 In	8 days	1021 mb / 31 In
2011	9°C / 49°F	2°C / 35°F	6°C / 42°F	197 hours	157.41 mm / 6.20 In	7 days	1023 mb / 31 In
2012	11°C / 52°F	4°C / 38°F	7°C / 45°F	136 hours	165.81 mm / 6.53 In	12 days	1018 mb / 31 In
2013	8°C / 46°F	0°C / 33°F	4°C / 39°F	145 hours	185.66 mm / 7.31 In	9 days	1022 mb / 31 In
2014	8°C / 47°F	2°C / 36°F	5°C / 41°F	104 hours	115.80 mm / 4.56 In	9 days	1023 mb / 31 In
2015	13°C / 56°F	7°C / 45°F	10°C / 50°F	88 hours	179.10 mm / 7.05 In	10 days	1018 mb / 31 In
2016	8°C / 46°F	0°C / 33°F	4°C / 39°F	165 hours	215.82 mm / 8.50 In	9 days	1024 mb / 31 In
2017	7°C / 45°F	-1°C / 31°F	3°C / 38°F	193 hours	134.01 mm / 5.28 In	6 days	1023 mb / 31 In
2018	9°C / 49°F	2°C / 36°F	6°C / 42°F	127 hours	212.87 mm / 8.38 In	11 days	1020 mb / 31 In
2019	11°C / 52°F	4°C / 38°F	7°C / 44°F	105 hours	196.55 mm / 7.74 In	6 days	1019 mb / 31 In
2020	8°C / 46°F	1°C / 33°F	4°C / 39°F	180 hours	144.73 mm / 5.70 In	8 days	1020 mb / 31 In
2021	15°C / 59°F	7°C / 44°F	11°C / 51°F	172 hours	171.20 mm / 6.74 In	11 days	1018 mb / 31 In
2022	9°C / 47°F	1°C / 34°F	5°C / 41°F	109 hours	158.25 mm / 6.23 In	10 days	1021 mb / 31 In
2023	11°C / 52°F	3°C / 37°F	7°C / 44°F	189 hours	96.23 mm / 3.79 In	4 days	1021 mb / 31 In
2024	8°C / 47°F	2°C / 35°F	5°C / 41°F	93 hours	420.72 mm / 16.56 In	6 days	1024 mb / 31 In
2025	8°C / 47°F	2°C / 35°F	5°C / 40°F	133 hours	188.10 mm / 7.41 In	4 days	1021 mb / 31 In

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