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Marlborough, MA weather and climate

Middlesex County, MA · population 41,398 · about 453 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Marlborough's own coordinates.

The year at a glance

Sunny days
199
clear or partly cloudy, per year
Precipitation
42 in
per year
Wet days
122
rain or snow per year
Snowfall
50 in
per year
Hot days
17
above 90 °F
Freezing nights
145
at or below 32 °F
Humidity
71%
average relative
Average temperature
50 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
255075JanMarMayJulSepNovDaily high, Jan: 37 °FDaily high, Feb: 40 °FDaily high, Mar: 48 °FDaily high, Apr: 60 °FDaily high, May: 71 °FDaily high, Jun: 80 °FDaily high, Jul: 85 °FDaily high, Aug: 83 °FDaily high, Sep: 76 °FDaily high, Oct: 64 °FDaily high, Nov: 53 °FDaily high, Dec: 42 °FDaily low, Jan: 16 °FDaily low, Feb: 17 °FDaily low, Mar: 25 °FDaily low, Apr: 35 °FDaily low, May: 46 °FDaily low, Jun: 55 °FDaily low, Jul: 61 °FDaily low, Aug: 59 °FDaily low, Sep: 50 °FDaily low, Oct: 39 °FDaily low, Nov: 30 °FDaily low, Dec: 22 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high374048607180858376645342
Daily low161725354655615950393022

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovMarlborough, Jan: 3.3 inMarlborough, Feb: 3.0 inMarlborough, Mar: 4.2 inMarlborough, Apr: 3.6 inMarlborough, May: 3.0 inMarlborough, Jun: 3.5 inMarlborough, Jul: 3.1 inMarlborough, Aug: 3.5 inMarlborough, Sep: 3.4 inMarlborough, Oct: 3.8 inMarlborough, Nov: 3.4 inMarlborough, Dec: 4.1 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Marlborough3.33.04.23.63.03.53.13.53.43.83.44.1

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovMarlborough, Jan: 17 daysMarlborough, Feb: 16 daysMarlborough, Mar: 16 daysMarlborough, Apr: 15 daysMarlborough, May: 15 daysMarlborough, Jun: 15 daysMarlborough, Jul: 18 daysMarlborough, Aug: 19 daysMarlborough, Sep: 17 daysMarlborough, Oct: 18 daysMarlborough, Nov: 17 daysMarlborough, Dec: 17 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Marlborough171616151515181917181717

Compare Marlborough with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Massachusetts city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).