2025 Compare Climate & Weather:
Aurora, CO vs Boulder, CO

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Highlights

On average, there are 245 sunny days per year in Boulder. Aurora averages 243 sunny days per year. The US average is 205 sunny days.

Boulder, Colorado gets 18.1 inches of rain, on average, per year. Aurora, Colorado gets 16.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Boulder averages 71.1 inches of snow per year. Aurora averages 61.7 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Boulder, Colorado
Summer High: the July high is around 88.1 degrees
Winter Low: the January low is 18.9
Rain: averages 18.1 inches of rain a year
Snow: averages 71.1 inches of snow a year

Aurora, Colorado
Summer High: the July high is around 88.2 degrees
Winter Low: the January low is 18
Rain: averages 16.8 inches of rain a year
Snow: averages 61.7 inches of snow a year

BestPlaces Comfort Index
Boulder

The annual BestPlaces Comfort Index for Boulder is 7.1 (10=best), which means it is about average compared to other places in Colorado.

7.1 / 10
September, June and August are the most pleasant months in Boulder, while December and January are the least comfortable months.

Aurora

The annual BestPlaces Comfort Index for Aurora is 7.3 (10=best), which means it is more comfortable than most places in Colorado.

7.3 / 10
June, September and August are the most pleasant months in Aurora, while December and January are the least comfortable months.

Today's Weather - Aurora, CO

12 AM PST

Partly Cloudy

40°F

DAYDESCRIPTIONHIGH / LOWWIND
OvernightPartly Cloudy36° / 63°W 6 mph
Friday NightMostly Clear40° / 74°SSE 7 to 12 mph
Saturday NightMostly Clear44° / 75°SSE 10 mph
Sunday NightChance Showers And Thunderstorms47° / 67°SSE 16 to 21 mph
Monday NightShowers And Thunderstorms40° / 50°S 13 to 17 mph
Tuesday NightRain Showers Likely38° / 55°NNW 9 to 13 mph
Wednesday NightChance Rain Showers39° / 63°SSE 10 mph
Today's Weather - Boulder, CO

12 AM PST

Partly Cloudy

44°F

DAYDESCRIPTIONHIGH / LOWWIND
OvernightPartly Cloudy38° / 64°W 2 mph
Friday NightMostly Clear41° / 74°SSW 2 to 6 mph
Saturday NightMostly Clear46° / 75°SW 2 to 6 mph
Sunday NightChance Showers And Thunderstorms then Mostly Cloudy47° / 67°SSW 3 to 9 mph
Monday NightShowers And Thunderstorms43° / 51°ENE 3 to 7 mph
Tuesday NightRain Showers Likely41° / 58°N 2 to 6 mph
Wednesday NightChance Rain Showers41° / 66°NW 5 mph
Average Monthly High / Low (°F)
MonthAurora, COBoulder, CO
January45° / 18°47° / 19°
February47° / 20°48° / 20°
March54° / 27°55° / 27°
April61° / 34°62° / 34°
May71° / 43°72° / 43°
June81° / 52°82° / 51°
July88° / 58°88° / 57°
August86° / 57°86° / 55°
September78° / 47°78° / 46°
October65° / 36°66° / 36°
November53° / 25°54° / 26°
December44° / 17°45° / 18°
Hot, Freezing, Rainy, Snowy Days: Aurora / Boulder
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 030 / 284 / 54 / 5
February0 / 026 / 255 / 54 / 5
March0 / 024 / 237 / 75 / 6
April0 / 012 / 138 / 93 / 4
May1 / 12 / 210 / 111 / 1
June6 / 60 / 08 / 90 / 0
July14 / 140 / 08 / 90 / 0
August8 / 90 / 09 / 100 / 0
September2 / 31 / 17 / 70 / 0
October0 / 09 / 105 / 61 / 2
November0 / 023 / 225 / 54 / 4
December0 / 030 / 284 / 54 / 5
July is the hottest month for Aurora with an average high temperature of 88.2°, which ranks it as about average compared to other places in Colorado. In Aurora, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Aurora are September, June and May.

July is the hottest month for Boulder with an average high temperature of 88.1°, which ranks it as about average compared to other places in Colorado. In Boulder, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Boulder are September, June and May.
December has the coldest nighttime temperatures for Aurora with an average of 17.2°. This is warmer than most places in Colorado.

December has the coldest nighttime temperatures for Boulder with an average of 18.3°. This is one of the warmest places in Colorado.

In Aurora, there are 30.5 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Boulder, there are 32.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Aurora, there are 155.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Boulder, there are 151.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Aurora, there are 5.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

In Boulder, there are 5.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

May is the wettest month in Aurora with 2.4 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 38% of yearly precipitation and 10% occurs in Spring, which is the driest season. The annual rainfall of 16.8 inches in Aurora means that it is about average compared to other places in Colorado.


May is the wettest month in Boulder with 2.5 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 37% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 18.1 inches in Boulder means that it is wetter than most places in Colorado.

May is the rainiest month in Aurora with 9.7 days of rain, and January is the driest month with only 4.3 rainy days. There are 80.2 rainy days annually in Aurora, which is about average compared to other places in Colorado. The rainiest season is Autumn when it rains 32% of the time and the driest is Spring with only a 17% chance of a rainy day.

May is the rainiest month in Boulder with 10.5 days of rain, and January is the driest month with only 4.7 rainy days. There are 88.0 rainy days annually in Boulder, which is rainier than most places in Colorado. The rainiest season is Autumn when it rains 31% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 61.7 inches in Aurora means that it is about average compared to other places in Colorado.

An annual snowfall of 71.1 inches in Boulder means that it is snowier than most places in Colorado.
March is the snowiest month in Aurora with 12.2 inches of snow, and 9 months of the year have significant snowfall.

March is the snowiest month in Boulder with 14.3 inches of snow, and 9 months of the year have significant snowfall.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Aurora    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Aurora

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Reviews for Boulder    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't  More

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but  More

   |    Reply

Start Your Review of Boulder

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Zips In Aurora, Colorado
80013, 80016, 80012, 80011, 80010, 80014, 80017, 80018, 80019, 80045, 10 total
Zips In BOULDER, COLORADO
80302, 80304, 80301, 80303, 80305, 80310
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