Arlington CDP, Massachusetts

Official LSAD Designation: Arlington CDP • Census GEOID: 2501640 • Middlesex County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Arlington CDP.

Reference Weather Station: BEDFORD HANSCOM FLD, MA US (ID: USW00014702) • Located 7.3 miles from community center • Elevation: 40.5 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	36.8°	18.2°	27.5°	2.90"
February	39.4°	19.3°	29.3°	2.69"
March	47.5°	27.2°	37.3°	3.85"
April	59.9°	37.1°	48.5°	3.84"
May	70.4°	46.7°	58.6°	3.36"
June	79.4°	56.2°	67.8°	3.72"
July	85.1°	62.0°	73.6°	3.51"
August	83.6°	60.3°	71.9°	3.47"
September	75.7°	51.8°	63.7°	3.54"
October	63.6°	40.8°	52.2°	4.24"
November	52.4°	32.4°	42.4°	3.72"
December	42.0°	24.0°	33.0°	3.76"

2010–2025, completed calendar years only.

NOAA station BEDFORD HANSCOM FLD, MA US (ID: USW00014702) • 7.3 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	51.2	61.9	40.5
2011	50.1	60.5	39.7
2012	51.5	62.0	41.1
2013	48.8	59.5	38.1
2014	47.6	58.2	37.0
2015	48.5	59.7	37.3
2016	Unavailable	Unavailable	Unavailable
2017	50.2	60.5	39.8
2018	50.5	60.4	40.6
2019	50.7	61.2	40.2
2020	52.0	63.0	41.0
2021	51.8	61.8	41.8
2022	51.7	63.0	40.4
2023	51.8	61.9	41.7
2024	51.4	62.0	40.8
2025	Unavailable	Unavailable	Unavailable

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.