2025 Compare Climate & Weather:
Littleton, CO vs Derby, CO

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Highlights

On average, there are 245 sunny days per year in Derby. Littleton averages 246 sunny days per year. The US average is 205 sunny days.

Derby, Colorado gets 15.8 inches of rain, on average, per year. Littleton, Colorado gets 18.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Derby averages 44.9 inches of snow per year. Littleton averages 68.9 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Derby, Colorado
Summer High: the July high is around 89.8 degrees
Winter Low: the January low is 17.1
Rain: averages 15.8 inches of rain a year
Snow: averages 44.9 inches of snow a year

Littleton, Colorado
Summer High: the July high is around 86.9 degrees
Winter Low: the January low is 17.8
Rain: averages 18.1 inches of rain a year
Snow: averages 68.9 inches of snow a year

BestPlaces Comfort Index

Derby

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

7.3 / 10

September, June and August are the most pleasant months in Derby, while December and January are the least comfortable months.

Littleton

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

7.3 / 10

August, June and September are the most pleasant months in Littleton, while December and January are the least comfortable months.

Average Monthly High / Low (°F)

Month	Littleton, CO	Derby, CO
January	47° / 18°	46° / 17°
February	48° / 20°	47° / 19°
March	55° / 27°	55° / 27°
April	62° / 34°	63° / 34°
May	70° / 44°	72° / 44°
June	80° / 53°	83° / 53°
July	87° / 59°	90° / 59°
August	84° / 58°	87° / 58°
September	77° / 48°	79° / 48°
October	65° / 36°	67° / 36°
November	53° / 26°	53° / 25°
December	44° / 17°	45° / 16°

Hot, Freezing, Rainy, Snowy Days: Littleton / Derby

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	29 / 30	5 / 4	5 / 4
February	0 / 0	26 / 27	5 / 5	5 / 4
March	0 / 0	23 / 24	7 / 6	5 / 5
April	0 / 0	11 / 12	8 / 8	4 / 3
May	0 / 1	1 / 1	10 / 9	1 / 0
June	4 / 7	0 / 0	9 / 8	0 / 0
July	12 / 17	0 / 0	8 / 8	0 / 0
August	6 / 11	0 / 0	10 / 8	0 / 0
September	2 / 4	1 / 1	7 / 6	0 / 0
October	0 / 0	9 / 10	6 / 5	2 / 1
November	0 / 0	23 / 24	6 / 5	4 / 4
December	0 / 0	29 / 30	5 / 5	5 / 4

July is the hottest month for Littleton with an average high temperature of 86.9°, which ranks it as about average compared to other places in Colorado. In Littleton, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Littleton are September, June and August.

July is the hottest month for Derby with an average high temperature of 89.8°, which ranks it as warmer than most places in Colorado. In Derby, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Derby are September, June and May.

December has the coldest nighttime temperatures for Littleton with an average of 16.8°. This is warmer than most places in Colorado.

December has the coldest nighttime temperatures for Derby with an average of 16.4°. This is warmer than most places in Colorado.

In Littleton, there are 23.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Derby, there are 39.9 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Littleton, there are 151.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Derby, there are 157.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Littleton, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

In Derby, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

May is the wettest month in Littleton with 2.5 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 35% of yearly precipitation and 12% occurs in Spring, which is the driest season. The annual rainfall of 18.1 inches in Littleton means that it is wetter than most places in Colorado.

May is the wettest month in Derby with 2.3 inches of rain, and the driest month is January with 0.5 inches. The wettest season is Autumn with 37% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 15.8 inches in Derby means that it is drier than most places in Colorado.

May is the rainiest month in Littleton with 9.8 days of rain, and January is the driest month with only 4.7 rainy days. There are 84.4 rainy days annually in Littleton, 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.

May is the rainiest month in Derby with 9.4 days of rain, and January is the driest month with only 4.3 rainy days. There are 76.8 rainy days annually in Derby, which is less rainy than most places in Colorado. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 18% chance of a rainy day.

An annual snowfall of 68.9 inches in Littleton means that it is snowier than most places in Colorado.

An annual snowfall of 44.9 inches in Derby means that it is less snowy than most places in Colorado.

March is the snowiest month in Littleton with 13.5 inches of snow, and 9 months of the year have significant snowfall.

March is the snowiest month in Derby with 8.8 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 Littleton 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

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Reviews for Derby 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 Derby

See all reviews

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2025 Compare Climate & Weather:
Littleton, CO vs Derby, CO

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Littleton / Derby

December has the coldest nighttime temperatures for Littleton with an average of 16.8°. This is warmer than most places in Colorado.

December has the coldest nighttime temperatures for Derby with an average of 16.4°. This is warmer than most places in Colorado.

In Littleton, there are 23.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Derby, there are 39.9 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Littleton, there are 151.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Derby, there are 157.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Littleton, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

In Derby, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

An annual snowfall of 68.9 inches in Littleton means that it is snowier than most places in Colorado.

An annual snowfall of 44.9 inches in Derby means that it is less snowy than most places in Colorado.

March is the snowiest month in Littleton with 13.5 inches of snow, and 9 months of the year have significant snowfall.

March is the snowiest month in Derby with 8.8 inches of snow, and 9 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Littleton 2 Reviews

Reviews for Derby 2 Reviews

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2025 Compare Climate & Weather:Littleton, CO vs Derby, CO

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Littleton / Derby

December has the coldest nighttime temperatures for Littleton with an average of 16.8°. This is warmer than most places in Colorado.December has the coldest nighttime temperatures for Derby with an average of 16.4°. This is warmer than most places in Colorado.

In Littleton, there are 23.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.In Derby, there are 39.9 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Littleton, there are 151.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.In Derby, there are 157.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Littleton, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.In Derby, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

An annual snowfall of 68.9 inches in Littleton means that it is snowier than most places in Colorado.An annual snowfall of 44.9 inches in Derby means that it is less snowy than most places in Colorado.

March is the snowiest month in Littleton with 13.5 inches of snow, and 9 months of the year have significant snowfall.March is the snowiest month in Derby with 8.8 inches of snow, and 9 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Littleton 2 Reviews

Reviews for Derby 2 Reviews

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Zips In Littleton, Colorado

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2025 Compare Climate & Weather:
Littleton, CO vs Derby, CO

December has the coldest nighttime temperatures for Littleton with an average of 16.8°. This is warmer than most places in Colorado.

December has the coldest nighttime temperatures for Derby with an average of 16.4°. This is warmer than most places in Colorado.

In Littleton, there are 23.4 days annually when the high temperature is over 90°, which is about average compared to other places in Colorado.

In Derby, there are 39.9 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.

In Littleton, there are 151.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Derby, there are 157.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Colorado.

In Littleton, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

In Derby, there are 6.3 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.

An annual snowfall of 68.9 inches in Littleton means that it is snowier than most places in Colorado.

An annual snowfall of 44.9 inches in Derby means that it is less snowy than most places in Colorado.

March is the snowiest month in Littleton with 13.5 inches of snow, and 9 months of the year have significant snowfall.

March is the snowiest month in Derby with 8.8 inches of snow, and 9 months of the year have significant snowfall.