2025 Compare Climate & Weather:
Seymour, CT vs Selbyville, DE

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Highlights

On average, there are 202 sunny days per year in Selbyville. Seymour averages 206 sunny days per year. The US average is 205 sunny days.

Selbyville, Delaware gets 44 inches of rain, on average, per year. Seymour, Connecticut gets 51.5 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Selbyville averages 11.4 inches of snow per year. Seymour averages 37.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Selbyville, Delaware
Summer High: the July high is around 85.9 degrees
Winter Low: the January low is 27.3
Rain: averages 44 inches of rain a year
Snow: averages 11.4 inches of snow a year

Seymour, Connecticut
Summer High: the July high is around 84.1 degrees
Winter Low: the January low is 19.4
Rain: averages 51.5 inches of rain a year
Snow: averages 37.1 inches of snow a year

BestPlaces Comfort Index

Selbyville

The annual BestPlaces Comfort Index for Selbyville is 7.4 (10=best), which means it is one of the most pleasant places in Delaware.

7.4 / 10

September, May and June are the most pleasant months in Selbyville, while January and February are the least comfortable months.

Seymour

The annual BestPlaces Comfort Index for Seymour is 7.1 (10=best), which means it is more comfortable than most places in Connecticut.

7.1 / 10

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

Average Monthly High / Low (°F)

Month	Seymour, CT	Selbyville, DE
January	37° / 19°	45° / 27°
February	40° / 22°	47° / 29°
March	49° / 29°	55° / 35°
April	60° / 39°	64° / 44°
May	71° / 48°	73° / 53°
June	80° / 58°	82° / 63°
July	84° / 64°	86° / 68°
August	83° / 62°	85° / 66°
September	75° / 54°	79° / 59°
October	63° / 43°	69° / 48°
November	53° / 34°	59° / 39°
December	41° / 25°	49° / 31°

Hot, Freezing, Rainy, Snowy Days: Seymour / Selbyville

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	28 / 21	9 / 10	6 / 2
February	0 / 0	25 / 19	8 / 9	4 / 1
March	0 / 0	21 / 13	10 / 11	3 / 1
April	0 / 0	5 / 3	11 / 11	1 / 0
May	1 / 1	0 / 0	11 / 11	0 / 0
June	3 / 4	0 / 0	11 / 11	0 / 0
July	5 / 8	0 / 0	9 / 11	0 / 0
August	3 / 6	0 / 0	9 / 10	0 / 0
September	1 / 1	0 / 0	9 / 10	0 / 0
October	0 / 0	3 / 1	9 / 10	0 / 0
November	0 / 0	13 / 8	10 / 9	1 / 0
December	0 / 0	25 / 18	10 / 10	4 / 1

July is the hottest month for Seymour with an average high temperature of 84.1°, which ranks it as one of the hottest places in Connecticut. In Seymour, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Seymour are June, September and August.

July is the hottest month for Selbyville with an average high temperature of 85.9°, which ranks it as cooler than most places in Delaware. In Selbyville, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Selbyville are September, June and May.

January has the coldest nighttime temperatures for Seymour with an average of 19.4°. This is warmer than most places in Connecticut.

January has the coldest nighttime temperatures for Selbyville with an average of 27.3°. This is warmer than most places in Delaware.

In Seymour, there are 11.4 days annually when the high temperature is over 90°, which is hotter than most places in Connecticut.

In Selbyville, there are 20.3 days annually when the high temperature is over 90°, which is cooler than most places in Delaware.

In Seymour, there are 120.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Connecticut.

In Selbyville, there are 81.9 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Delaware.

In Seymour, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Connecticut.

In Selbyville, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Delaware.

October is the wettest month in Seymour with 5.1 inches of rain, and the driest month is February with 3.3 inches. The wettest season is Summer with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 51.5 inches in Seymour means that it is wetter than most places in Connecticut.

August is the wettest month in Selbyville with 4.4 inches of rain, and the driest month is February with 3.0 inches. The wettest season is Autumn with 28% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 44.0 inches in Selbyville means that it is one of the driest places in Delaware.

May is the rainiest month in Seymour with 11.1 days of rain, and February is the driest month with only 8.3 rainy days. There are 114.1 rainy days annually in Seymour, which is less rainy than most places in Connecticut. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.

May is the rainiest month in Selbyville with 11.1 days of rain, and February is the driest month with only 9.3 rainy days. There are 121.9 rainy days annually in Selbyville, which is rainier than most places in Delaware. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 24% chance of a rainy day.

An annual snowfall of 37.1 inches in Seymour means that it is snowier than most places in Connecticut.

An annual snowfall of 11.4 inches in Selbyville means that it is less snowy than most places in Delaware.

January is the snowiest month in Seymour with 11.2 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Selbyville with 5.0 inches of snow, and 4 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 Seymour 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 Selbyville 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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2025 Compare Climate & Weather:
Seymour, CT vs Selbyville, DE

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Seymour / Selbyville

January has the coldest nighttime temperatures for Seymour with an average of 19.4°. This is warmer than most places in Connecticut.

January has the coldest nighttime temperatures for Selbyville with an average of 27.3°. This is warmer than most places in Delaware.

In Seymour, there are 11.4 days annually when the high temperature is over 90°, which is hotter than most places in Connecticut.

In Selbyville, there are 20.3 days annually when the high temperature is over 90°, which is cooler than most places in Delaware.

In Seymour, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Connecticut.

In Selbyville, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Delaware.

An annual snowfall of 37.1 inches in Seymour means that it is snowier than most places in Connecticut.

An annual snowfall of 11.4 inches in Selbyville means that it is less snowy than most places in Delaware.

January is the snowiest month in Seymour with 11.2 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Selbyville with 5.0 inches of snow, and 4 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Selbyville 2 Reviews

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2025 Compare Climate & Weather:Seymour, CT vs Selbyville, DE

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Seymour / Selbyville

January has the coldest nighttime temperatures for Seymour with an average of 19.4°. This is warmer than most places in Connecticut.January has the coldest nighttime temperatures for Selbyville with an average of 27.3°. This is warmer than most places in Delaware.

In Seymour, there are 11.4 days annually when the high temperature is over 90°, which is hotter than most places in Connecticut.In Selbyville, there are 20.3 days annually when the high temperature is over 90°, which is cooler than most places in Delaware.

In Seymour, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Connecticut.In Selbyville, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Delaware.

An annual snowfall of 37.1 inches in Seymour means that it is snowier than most places in Connecticut.An annual snowfall of 11.4 inches in Selbyville means that it is less snowy than most places in Delaware.

January is the snowiest month in Seymour with 11.2 inches of snow, and 6 months of the year have significant snowfall.February is the snowiest month in Selbyville with 5.0 inches of snow, and 4 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Seymour 2 Reviews

Reviews for Selbyville 2 Reviews

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2025 Compare Climate & Weather:
Seymour, CT vs Selbyville, DE

January has the coldest nighttime temperatures for Seymour with an average of 19.4°. This is warmer than most places in Connecticut.

January has the coldest nighttime temperatures for Selbyville with an average of 27.3°. This is warmer than most places in Delaware.

In Seymour, there are 11.4 days annually when the high temperature is over 90°, which is hotter than most places in Connecticut.

In Selbyville, there are 20.3 days annually when the high temperature is over 90°, which is cooler than most places in Delaware.

In Seymour, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Connecticut.

In Selbyville, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Delaware.

An annual snowfall of 37.1 inches in Seymour means that it is snowier than most places in Connecticut.

An annual snowfall of 11.4 inches in Selbyville means that it is less snowy than most places in Delaware.

January is the snowiest month in Seymour with 11.2 inches of snow, and 6 months of the year have significant snowfall.

February is the snowiest month in Selbyville with 5.0 inches of snow, and 4 months of the year have significant snowfall.