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Boston, MA vs Denver, CO weather comparison

Boston

MA

Denver endures about 28 more days above 90 °F each year.

Boston has around 61 fewer freezing nights a year. Denver enjoys about 70 more sunny days a year than Boston.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Boston, MA and Denver, CO
BostonMetricDenver
201 daysSunny daysclear or partly cloudy skies270 days
44 inPrecipitationper year15 in
124 daysWet daysrain or snow per year84 days
50 inSnowfallper year49 in
15 daysHot daysabove 90 °F42 days
94 daysFreezing nightsat or below 32 °F155 days
72%Humidityaverage relative53%
52 °FAverage temperatureyear round51 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

BostonDenver

Daily highs

406080JanMarMayJulSepNovBoston, Jan: 37 °FBoston, Feb: 39 °FBoston, Mar: 46 °FBoston, Apr: 57 °FBoston, May: 67 °FBoston, Jun: 76 °FBoston, Jul: 82 °FBoston, Aug: 81 °FBoston, Sep: 73 °FBoston, Oct: 62 °FBoston, Nov: 52 °FBoston, Dec: 42 °FDenver, Jan: 47 °FDenver, Feb: 47 °FDenver, Mar: 56 °FDenver, Apr: 62 °FDenver, May: 72 °FDenver, Jun: 84 °FDenver, Jul: 90 °FDenver, Aug: 88 °FDenver, Sep: 80 °FDenver, Oct: 67 °FDenver, Nov: 55 °FDenver, Dec: 46 °F

Daily lows

204060JanMarMayJulSepNovBoston, Jan: 23 °FBoston, Feb: 24 °FBoston, Mar: 31 °FBoston, Apr: 41 °FBoston, May: 50 °FBoston, Jun: 60 °FBoston, Jul: 66 °FBoston, Aug: 65 °FBoston, Sep: 58 °FBoston, Oct: 47 °FBoston, Nov: 38 °FBoston, Dec: 29 °FDenver, Jan: 18 °FDenver, Feb: 19 °FDenver, Mar: 27 °FDenver, Apr: 34 °FDenver, May: 43 °FDenver, Jun: 53 °FDenver, Jul: 59 °FDenver, Aug: 57 °FDenver, Sep: 48 °FDenver, Oct: 36 °FDenver, Nov: 26 °FDenver, Dec: 18 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Boston high373946576776828173625242
Denver high474756627284908880675546
Boston low232431415060666558473829
Denver low181927344353595748362618

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

BostonDenver
0.02.04.0JanMarMayJulSepNovBoston, Jan: 3.7 inBoston, Feb: 3.3 inBoston, Mar: 4.6 inBoston, Apr: 3.9 inBoston, May: 3.2 inBoston, Jun: 3.4 inBoston, Jul: 2.9 inBoston, Aug: 3.4 inBoston, Sep: 3.4 inBoston, Oct: 4.3 inBoston, Nov: 3.7 inBoston, Dec: 4.6 inDenver, Jan: 0.7 inDenver, Feb: 0.7 inDenver, Mar: 1.4 inDenver, Apr: 2.1 inDenver, May: 2.5 inDenver, Jun: 1.6 inDenver, Jul: 1.2 inDenver, Aug: 1.2 inDenver, Sep: 1.1 inDenver, Oct: 1.2 inDenver, Nov: 0.9 inDenver, Dec: 0.6 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Boston3.73.34.63.93.23.42.93.43.44.33.74.6
Denver0.70.71.42.12.51.61.21.21.11.20.90.6

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

BostonDenver
01020JanMarMayJulSepNovBoston, Jan: 17 daysBoston, Feb: 16 daysBoston, Mar: 16 daysBoston, Apr: 16 daysBoston, May: 15 daysBoston, Jun: 15 daysBoston, Jul: 19 daysBoston, Aug: 19 daysBoston, Sep: 17 daysBoston, Oct: 19 daysBoston, Nov: 17 daysBoston, Dec: 16 daysDenver, Jan: 23 daysDenver, Feb: 20 daysDenver, Mar: 21 daysDenver, Apr: 18 daysDenver, May: 20 daysDenver, Jun: 24 daysDenver, Jul: 25 daysDenver, Aug: 24 daysDenver, Sep: 24 daysDenver, Oct: 24 daysDenver, Nov: 23 daysDenver, Dec: 24 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Boston171616161515191917191716
Denver232021182024252424242324

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Boston vs another city

See the full Boston, MA climate profile

More Massachusetts cities

Denver vs another city

See the full Denver, CO climate profile

More Colorado cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. 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).