Williamsport December Weather Averages Pennsylvania, United States of America

December Weather Averages for Williamsport

High Temp	4°C	38°F
Low Temp	-3°C	27°F
Avg Temp	0°C	32°F
Sunshine Hours	100 hours
Rainfall	108.80 mm	4.28 In
Rain days	9 days
Pressure	1019 mb	31 In

Williamsport December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	2°C / 36°F	-5°C / 23°F	-1°C / 30°F	103 hours	138.19 mm / 5.44 In	11 days	1020 mb / 31 In
2009	1°C / 35°F	-5°C / 24°F	-2°C / 29°F	109 hours	113.34 mm / 4.46 In	8 days	1019 mb / 31 In
2010	0°C / 32°F	-6°C / 20°F	-4°C / 25°F	120 hours	66.40 mm / 2.61 In	5 days	1015 mb / 30 In
2011	5°C / 42°F	-2°C / 29°F	2°C / 35°F	164 hours	98.75 mm / 3.89 In	7 days	1022 mb / 31 In
2012	5°C / 41°F	-2°C / 29°F	2°C / 35°F	110 hours	135.68 mm / 5.34 In	10 days	1017 mb / 30 In
2013	2°C / 36°F	-5°C / 23°F	-1°C / 29°F	65 hours	125.00 mm / 4.92 In	14 days	1020 mb / 31 In
2014	3°C / 38°F	-2°C / 28°F	1°C / 33°F	97 hours	81.90 mm / 3.22 In	11 days	1022 mb / 31 In
2015	9°C / 48°F	2°C / 36°F	6°C / 42°F	58 hours	104.82 mm / 4.13 In	11 days	1019 mb / 31 In
2016	2°C / 36°F	-4°C / 25°F	-1°C / 30°F	69 hours	72.80 mm / 2.87 In	11 days	1021 mb / 31 In
2017	1°C / 34°F	-5°C / 24°F	-2°C / 29°F	121 hours	42.40 mm / 1.67 In	8 days	1019 mb / 31 In
2018	4°C / 39°F	-2°C / 29°F	1°C / 34°F	84 hours	113.55 mm / 4.47 In	6 days	1020 mb / 31 In
2019	3°C / 37°F	-3°C / 26°F	0°C / 32°F	119 hours	107.74 mm / 4.24 In	14 days	1018 mb / 31 In
2020	3°C / 37°F	-4°C / 25°F	0°C / 31°F	88 hours	114.85 mm / 4.52 In	9 days	1017 mb / 31 In
2021	7°C / 44°F	-1°C / 31°F	2°C / 36°F	130 hours	60.00 mm / 2.36 In	9 days	1018 mb / 31 In
2022	3°C / 38°F	-5°C / 23°F	-1°C / 30°F	82 hours	114.50 mm / 4.51 In	9 days	1021 mb / 31 In
2023	7°C / 44°F	0°C / 32°F	3°C / 37°F	100 hours	160.50 mm / 6.32 In	9 days	1020 mb / 31 In
2024	2°C / 35°F	-3°C / 27°F	-1°C / 31°F	88 hours	228.51 mm / 9.00 In	7 days	1022 mb / 31 In

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