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Anchorage, AK vs Boulder, CO weather comparison

Anchorage

AK

Boulder endures about 32 more days above 90 °F each year.

Boulder enjoys about 172 more sunny days a year than Anchorage. Boulder has around 40 fewer freezing nights a year.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Anchorage, AK and Boulder, CO
AnchorageMetricBoulder
92 daysSunny daysclear or partly cloudy skies264 days
16 inPrecipitationper year21 in
115 daysWet daysrain or snow per year101 days
78 inSnowfallper year90 in
0 daysHot daysabove 90 °F32 days
182 daysFreezing nightsat or below 32 °F142 days
82%Humidityaverage relative61%
38 °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.

AnchorageBoulder

Daily highs

20406080JanMarMayJulSepNovAnchorage, Jan: 23 °FAnchorage, Feb: 27 °FAnchorage, Mar: 33 °FAnchorage, Apr: 45 °FAnchorage, May: 56 °FAnchorage, Jun: 63 °FAnchorage, Jul: 66 °FAnchorage, Aug: 64 °FAnchorage, Sep: 56 °FAnchorage, Oct: 42 °FAnchorage, Nov: 29 °FAnchorage, Dec: 25 °FBoulder, Jan: 46 °FBoulder, Feb: 48 °FBoulder, Mar: 56 °FBoulder, Apr: 62 °FBoulder, May: 71 °FBoulder, Jun: 82 °FBoulder, Jul: 88 °FBoulder, Aug: 86 °FBoulder, Sep: 78 °FBoulder, Oct: 65 °FBoulder, Nov: 54 °FBoulder, Dec: 46 °F

Daily lows

204060JanMarMayJulSepNovAnchorage, Jan: 11 °FAnchorage, Feb: 15 °FAnchorage, Mar: 19 °FAnchorage, Apr: 30 °FAnchorage, May: 40 °FAnchorage, Jun: 48 °FAnchorage, Jul: 53 °FAnchorage, Aug: 51 °FAnchorage, Sep: 43 °FAnchorage, Oct: 31 °FAnchorage, Nov: 18 °FAnchorage, Dec: 14 °FBoulder, Jan: 21 °FBoulder, Feb: 22 °FBoulder, Mar: 29 °FBoulder, Apr: 34 °FBoulder, May: 42 °FBoulder, Jun: 51 °FBoulder, Jul: 56 °FBoulder, Aug: 55 °FBoulder, Sep: 48 °FBoulder, Oct: 37 °FBoulder, Nov: 28 °FBoulder, Dec: 21 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Anchorage high232733455663666456422925
Boulder high464856627182888678655446
Anchorage low111519304048535143311814
Boulder low212229344251565548372821

Monthly precipitation

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

AnchorageBoulder
0.01.02.03.0JanMarMayJulSepNovAnchorage, Jan: 1.4 inAnchorage, Feb: 1.4 inAnchorage, Mar: 1.1 inAnchorage, Apr: 1.0 inAnchorage, May: 0.9 inAnchorage, Jun: 0.8 inAnchorage, Jul: 1.1 inAnchorage, Aug: 1.6 inAnchorage, Sep: 2.0 inAnchorage, Oct: 1.7 inAnchorage, Nov: 1.6 inAnchorage, Dec: 1.9 inBoulder, Jan: 0.8 inBoulder, Feb: 0.8 inBoulder, Mar: 1.6 inBoulder, Apr: 2.5 inBoulder, May: 3.3 inBoulder, Jun: 2.5 inBoulder, Jul: 2.4 inBoulder, Aug: 2.3 inBoulder, Sep: 1.7 inBoulder, Oct: 1.5 inBoulder, Nov: 1.0 inBoulder, Dec: 0.7 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Anchorage1.41.41.11.00.90.81.11.62.01.71.61.9
Boulder0.80.81.62.53.32.52.42.31.71.51.00.7

Monthly sunny days

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

AnchorageBoulder
01020JanMarMayJulSepNovAnchorage, Jan: 10 daysAnchorage, Feb: 8 daysAnchorage, Mar: 12 daysAnchorage, Apr: 10 daysAnchorage, May: 10 daysAnchorage, Jun: 7 daysAnchorage, Jul: 5 daysAnchorage, Aug: 6 daysAnchorage, Sep: 6 daysAnchorage, Oct: 6 daysAnchorage, Nov: 7 daysAnchorage, Dec: 6 daysBoulder, Jan: 22 daysBoulder, Feb: 19 daysBoulder, Mar: 21 daysBoulder, Apr: 18 daysBoulder, May: 20 daysBoulder, Jun: 23 daysBoulder, Jul: 24 daysBoulder, Aug: 23 daysBoulder, Sep: 24 daysBoulder, Oct: 23 daysBoulder, Nov: 23 daysBoulder, Dec: 23 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Anchorage1081210107566676
Boulder221921182023242324232323

Keep comparing

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

Anchorage vs another city

See the full Anchorage, AK climate profile

More Alaska cities

Boulder vs another city

See the full Boulder, 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).