2025 Compare Climate & Weather:
Dallas, TX vs New Castle, DE

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Highlights

On average, there are 202 sunny days per year in New Castle. Dallas averages 234 sunny days per year. The US average is 205 sunny days.

New Castle, Delaware gets 44.9 inches of rain, on average, per year. Dallas, Texas gets 39.1 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

New Castle averages 12.4 inches of snow per year. Dallas averages 1.2 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

New Castle, Delaware
Summer High: the July high is around 86.9 degrees
Winter Low: the January low is 23.9
Rain: averages 44.9 inches of rain a year
Snow: averages 12.4 inches of snow a year

Dallas, Texas
Summer High: the July high is around 94.9 degrees
Winter Low: the January low is 35.5
Rain: averages 39.1 inches of rain a year
Snow: averages 1.2 inches of snow a year

BestPlaces Comfort Index
New Castle

The annual BestPlaces Comfort Index for New Castle is 7.3 (10=best), which means it is about average compared to other places in Delaware.

7.3 / 10
September, June and May are the most pleasant months in New Castle, while January and February are the least comfortable months.

Dallas

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

7.1 / 10
October, April and May are the most pleasant months in Dallas, while July and August are the least comfortable months.

Today's Weather - Dallas, TX

2 AM PST

Clear

78°F

DAYDESCRIPTIONHIGH / LOWWIND
OvernightClear75° / 101°S 10 mph
Wednesday NightPartly Cloudy75° / 90°S 5 to 10 mph
Thursday NightSlight Chance Showers And Thunderstorms then Mostly Cloudy75° / 94°S 5 to 10 mph
Friday NightSlight Chance Showers And Thunderstorms73° / 92°S 5 to 10 mph
Saturday NightChance Showers And Thunderstorms72° / 91°SSE 10 mph
Sunday NightSlight Chance Showers And Thunderstorms73° / 91°SSE 15 mph
Monday NightChance Showers And Thunderstorms73° / 90°S 10 to 15 mph
Today's Weather - New Castle, DE

2 AM PST

Showers And Thunderstorms

61°F

DAYDESCRIPTIONHIGH / LOWWIND
OvernightShowers And Thunderstorms60° / 70°E 15 mph
Wednesday NightShowers And Thunderstorms Likely63° / 76°E 5 to 10 mph
Thursday NightShowers And Thunderstorms Likely then Partly Cloudy64° / 81°SE 0 to 5 mph
Friday NightShowers And Thunderstorms Likely66° / 82°S 0 to 5 mph
Saturday NightSlight Chance Showers And Thunderstorms64° / 76°W 5 to 10 mph
Sunday NightMostly Clear58° / 74°NW 5 to 15 mph
Monday NightMostly Clear54° / 74°N 5 to 10 mph
Average Monthly High / Low (°F)
MonthDallas, TXNew Castle, DE
January56° / 36°41° / 24°
February60° / 39°44° / 26°
March68° / 47°53° / 33°
April76° / 55°65° / 42°
May83° / 64°74° / 52°
June90° / 71°83° / 62°
July95° / 75°87° / 66°
August96° / 75°85° / 65°
September88° / 67°78° / 57°
October78° / 56°67° / 45°
November67° / 46°56° / 36°
December57° / 37°45° / 28°
Hot, Freezing, Rainy, Snowy Days: Dallas / New Castle
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 011 / 257 / 90 / 2
February0 / 06 / 226 / 80 / 2
March0 / 02 / 157 / 100 / 1
April1 / 00 / 36 / 110 / 0
May5 / 10 / 09 / 110 / 0
June18 / 50 / 07 / 90 / 0
July27 / 80 / 05 / 90 / 0
August26 / 50 / 05 / 80 / 0
September13 / 10 / 05 / 80 / 0
October2 / 00 / 27 / 80 / 0
November0 / 02 / 106 / 90 / 0
December0 / 09 / 227 / 90 / 1
August is the hottest month for Dallas with an average high temperature of 95.7°, which ranks it as warmer than most places in Texas. In Dallas, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Dallas are October, April and May.

July is the hottest month for New Castle with an average high temperature of 86.9°, which ranks it as warmer than most places in Delaware. In New Castle, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for New Castle are September, May and June.
January has the coldest nighttime temperatures for Dallas with an average of 35.5°. This is about average compared to other places in Texas.

January has the coldest nighttime temperatures for New Castle with an average of 23.9°. This is colder than most places in Delaware.

In Dallas, there are 91.2 days annually when the high temperature is over 90°, which is about average compared to other places in Texas.

In New Castle, there are 20.9 days annually when the high temperature is over 90°, which is hotter than most places in Delaware.

In Dallas, there are 30.2 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Texas.

In New Castle, there are 97.1 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Delaware.

In Dallas, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Texas.

In New Castle, there are 0.3 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Delaware.

May is the wettest month in Dallas with 5.0 inches of rain, and the driest month is August with 2.2 inches. The wettest season is Summer with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 39.1 inches in Dallas means that it is wetter than most places in Texas.


September is the wettest month in New Castle with 4.6 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 44.9 inches in New Castle means that it is drier than most places in Delaware.

May is the rainiest month in Dallas with 8.9 days of rain, and August is the driest month with only 4.5 rainy days. There are 77.6 rainy days annually in Dallas, which is rainier than most places in Texas. The rainiest season is Summer when it rains 29% of the time and the driest is Autumn with only a 21% chance of a rainy day.

May is the rainiest month in New Castle with 10.5 days of rain, and October is the driest month with only 7.6 rainy days. There are 108.1 rainy days annually in New Castle, which is one of the least rainy places in Delaware. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 1.2 inches in Dallas means that it is snowier than most places in Texas.

An annual snowfall of 12.4 inches in New Castle means that it is less snowy than most places in Delaware.
February is the snowiest month in Dallas with 0.4 inches of snow, and no months of the year have significant snowfall.

January is the snowiest month in New Castle with 4.8 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 Dallas    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 Dallas

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Reviews for New Castle    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 New Castle

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