Chelmsford May Weather Averages Massachusetts, United States of America

May Weather Averages for Chelmsford

High Temp	20°C	68°F
Low Temp	10°C	49°F
Avg Temp	15°C	58°F
Sunshine Hours	187 hours
Rainfall	77.24 mm	3.04 In
Rain days	7 days
Pressure	1016 mb	30 In

Chelmsford May Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	18°C / 64°F	8°C / 46°F	13°C / 55°F	185 hours	46.89 mm / 1.85 In	5 days	1010 mb / 30 In
2009	19°C / 65°F	9°C / 49°F	14°C / 57°F	199 hours	83.51 mm / 3.29 In	11 days	1017 mb / 31 In
2010	22°C / 71°F	11°C / 51°F	16°C / 61°F	267 hours	53.13 mm / 2.09 In	3 days	1015 mb / 30 In
2011	19°C / 66°F	10°C / 50°F	14°C / 57°F	150 hours	89.37 mm / 3.52 In	10 days	1016 mb / 30 In
2012	21°C / 69°F	11°C / 53°F	16°C / 60°F	158 hours	98.14 mm / 3.86 In	6 days	1017 mb / 30 In
2013	21°C / 69°F	8°C / 47°F	14°C / 58°F	218 hours	110.08 mm / 4.33 In	11 days	1017 mb / 31 In
2014	19°C / 67°F	8°C / 47°F	14°C / 57°F	156 hours	72.68 mm / 2.86 In	6 days	1016 mb / 30 In
2015	24°C / 75°F	11°C / 51°F	17°C / 63°F	259 hours	33.63 mm / 1.32 In	3 days	1019 mb / 31 In
2016	19°C / 66°F	9°C / 48°F	14°C / 57°F	164 hours	60.89 mm / 2.40 In	8 days	1014 mb / 30 In
2017	18°C / 64°F	8°C / 47°F	13°C / 55°F	114 hours	128.46 mm / 5.06 In	10 days	1013 mb / 30 In
2018	23°C / 73°F	11°C / 52°F	17°C / 62°F	244 hours	67.19 mm / 2.65 In	6 days	1017 mb / 31 In
2019	18°C / 65°F	9°C / 48°F	13°C / 56°F	149 hours	77.63 mm / 3.06 In	10 days	1015 mb / 30 In
2020	18°C / 65°F	9°C / 47°F	14°C / 56°F	172 hours	56.52 mm / 2.23 In	4 days	1015 mb / 30 In
2021	19°C / 66°F	10°C / 49°F	14°C / 58°F	147 hours	96.78 mm / 3.81 In	6 days	1017 mb / 31 In
2022	22°C / 71°F	10°C / 50°F	16°C / 60°F	209 hours	45.90 mm / 1.81 In	6 days	1018 mb / 31 In
2023	21°C / 69°F	8°C / 46°F	14°C / 58°F	260 hours	108.30 mm / 4.26 In	6 days	1016 mb / 30 In
2024	20°C / 69°F	10°C / 50°F	15°C / 59°F	118 hours	53.61 mm / 2.11 In	3 days	1014 mb / 30 In

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