Johnston December Weather Averages Iowa, United States of America

December Weather Averages for Johnston

High Temp	2°C	36°F
Low Temp	-5°C	23°F
Avg Temp	-2°C	29°F
Sunshine Hours	172 hours
Rainfall	51.40 mm	2.02 In
Rain days	6 days
Pressure	1019 mb	31 In

Johnston December Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	-1°C / 30°F	-11°C / 11°F	-6°C / 21°F	148 hours	49.90 mm / 1.96 In	8 days	1020 mb / 31 In
2009	-3°C / 27°F	-10°C / 15°F	-6°C / 21°F	114 hours	93.69 mm / 3.69 In	10 days	1018 mb / 31 In
2010	-2°C / 28°F	-10°C / 14°F	-6°C / 21°F	124 hours	26.00 mm / 1.02 In	6 days	1021 mb / 31 In
2011	3°C / 38°F	-3°C / 26°F	0°C / 32°F	234 hours	66.43 mm / 2.62 In	4 days	1021 mb / 31 In
2012	2°C / 36°F	-5°C / 23°F	-1°C / 30°F	181 hours	43.20 mm / 1.70 In	6 days	1017 mb / 31 In
2013	-3°C / 27°F	-10°C / 13°F	-7°C / 20°F	161 hours	20.80 mm / 0.82 In	6 days	1022 mb / 31 In
2014	2°C / 35°F	-4°C / 25°F	-1°C / 30°F	123 hours	29.10 mm / 1.15 In	4 days	1023 mb / 31 In
2015	5°C / 41°F	-1°C / 30°F	2°C / 35°F	132 hours	138.80 mm / 5.46 In	8 days	1015 mb / 30 In
2016	0°C / 33°F	-7°C / 20°F	-3°C / 26°F	175 hours	45.50 mm / 1.79 In	6 days	1023 mb / 31 In
2017	1°C / 34°F	-6°C / 21°F	-3°C / 27°F	191 hours	10.40 mm / 0.41 In	4 days	1022 mb / 31 In
2018	3°C / 38°F	-4°C / 26°F	-1°C / 31°F	197 hours	67.63 mm / 2.66 In	6 days	1019 mb / 31 In
2019	4°C / 40°F	-3°C / 26°F	0°C / 32°F	201 hours	40.40 mm / 1.59 In	4 days	1017 mb / 31 In
2020	2°C / 36°F	-6°C / 22°F	-2°C / 29°F	250 hours	44.03 mm / 1.73 In	5 days	1019 mb / 31 In
2021	7°C / 45°F	-2°C / 28°F	2°C / 36°F	238 hours	23.90 mm / 0.94 In	4 days	1014 mb / 30 In
2022	1°C / 33°F	-8°C / 18°F	-4°C / 25°F	146 hours	46.00 mm / 1.81 In	10 days	1019 mb / 31 In
2023	8°C / 46°F	0°C / 31°F	3°C / 38°F	155 hours	67.83 mm / 2.67 In	6 days	1018 mb / 31 In
2024	2°C / 36°F	-3°C / 26°F	-1°C / 30°F	122 hours	58.60 mm / 2.31 In	2 days	1022 mb / 31 In

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