Climate and monthly weather forecast
Newark, DE

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The climate of Newark

Newark, Delaware, USA is positioned in the Köppen climate classification as Cfa - a humid subtropical climate with no dry season. In this climate zone, residents experience a wide range of weather throughout the year. Temperatures vary from a low of 25.7°F (-3.5°C) in the coldest month to a high of 84.7°F (29.3°C) during the warmest period. Humidity levels persistently hover around the mid-70s percentile, indicating consistent moisture in the atmosphere year round.

Rainfall is distributed fairly evenly throughout the year in Newark, with the heaviest rainfall months witnessed from July to August, where averages reach up to 4.17" (106mm). Contrastingly, September experiences the least rainfall with 2.36" (60mm). The corresponding rainfall days fluctuate from 9.3 days in January to a maximum of 19 days in May. Snow is sparse, with most accumulation noted from January to March, reaching a peak of 2.76" (70mm) and then witnessing a drastic drop to virtually zero from April onwards.

Daylight hours understandably increase from a minimum of 9.7 hours in January to a maximum of 14.9 hours in June, before decreasing again. The amount of sunshine, however, does not follow a similar pattern and peaks in July with 10.8 hours a day. Visibility remains a steady 6 miles throughout the year with negligible variation. Cloud coverage gradually increases from 30% in July to 45% in December.

The best time to visit Newark

With ideal weather conditions marked by warm temperatures and ample sunshine, the summer months from June to August provide the best time to explore Newark. During this period, the weather is pleasantly warm with average high temperatures ranging between 79.7°F (26.5°C) to 84.7°F (29.3°C). As the warm season progresses, the city sees the longest daylight periods, with up to 14.9 hours of daylight in June and relative humidity levels of around 76 to 77%, indicative of a moderately humid climate.

The worst time to visit Newark

The cold season from December to February is generally considered a less desirable time for visits. During these months, the average high temperatures fall to between 37.8°F (3.2°C) and 44.1°F (6.7°C). Moreover, daylight hours are notably shorter during this period with averages of only 9.4 to 9.7 hours per day. Yet, for those who enjoy winter landscapes, December also carries a certain allure, even though it is the coldest and cloudiest month of the year.

Spring weather in Newark

Spring, spanning from March to May, sees a steady warming trend in Newark, starting with average highs of 49.6°F (9.8°C) in March and escalating to a comfortable 71.6°F (22°C) by May. Rainfall tends to increase, with May averaging the highest number of rainy days - 19 in total. As spring progresses, daylight hours increase from 12 to 14.4 hours per day, offering longer periods to explore and enjoy the outdoors.

Summer weather in Newark

Summer in Newark, from June to August, offers the warmest and longest days of the year. Average high temperatures range between 79.7°F (26.5°C) and 84.7°F (29.3°C), accompanied by an average of 14.8 hours of daylight in June. Though humidity can rise to 77%, the number of rainfall days decreases from 19 in May to 17 in June.

Autumn weather in Newark

The onset of autumn in September brings a drop in temperature with averages decreasing from 76.5°F (24.7°C) to 52.9°F (11.6°C) by November. Despite the decline in temperature, rainfall decreases and the number of daylight hours decreases steadily from 12.4 hours in September to 10 hours in November.

Winter weather in Newark

Winter in Newark is generally cold with average high temperatures dropping from 44.1°F (6.7°C) in December to 37.8°F (3.2°C) in January. January also observes the highest snowfall with an average accumulation of 2.28" (58mm). Despite the longer nights and shorter days, the winter charm predominantly attracts those enthusiastic about the cold season.

Weather in January

Although January might not be the ideal month for outdoor pursuits in Newark, Delaware, the city's scenery undergoes a beautiful transformation beneath a delicate sheet of snow. One noteworthy characteristic of January is that it endures the coldest temperatures of the year with lows plunging to 25.7°F (-3.5°C) and highs barely scratching 37.8°F (3.2°C). Weather in January »

Weather in February

In February, Newark weather continues its wintry trend. Temperatures range from 28°F (-2.2°C) to 41.5°F (5.3°C), yet this colder weather does not discourage activities like ice skating or visiting indoor attractions. Between January and February, temperatures start to show a modest rise and the daylight hours increase by an hour, hinting at the arrival of spring. Weather in February »

Weather in March

March marks the onset of spring, bringing with it a thawing of the landscape and the return of vibrant green foliage. Temperatures in this month rise to a high of 49.6°F (9.8°C). Ghosts of winter vacate scene as snowfall significantly declines in comparison to February, signaling an end to winter activities. Weather in March »

Weather in April

April marks a significant escalation in temperatures, with the arrival of moderately warmer days and the exciting onset of spring activities. The most significant climatic change is the increase in highest temperatures to 61.5°F (16.4°C), breaking the barrier of cold days that prevailed in the first quarter of the year. Weather in April »

Weather in May

May’s weather illuminates Newark in a brilliant light, graced by lush green landscapes and clear, sunny skies. Temperatures rise significantly, reaching a high of 71.6°F (22°C), making it a favorite month for sightseeing and outdoor activities. Weather in May »

Weather in June

June in Newark heralds the onset of summer, attracting visitors with its warm climate and longer days. Temperatures often peak at 79.7°F (26.5°C), inducing a widespread switch in activities and wardrobe. Hiking, cycling, and brunching outdoors become common weekend pastimes. Weather in June »

Weather in July

July in Newark is characterized by high temperatures, maxing out at 84.7°F (29.3°C), along with the promise of long, sunny days smattered with occasional rainfall. This period marks the zenith of summer, bringing with it a series of vibrant outdoor events such as concerts, food festivals, and more. Weather in July »

Weather in August

August brings sultry heat and sunny days to Newark, but slightly lower temperatures than July, the highs resting at around 82.9°F (28.3°C). These conditions suit those seeking out tranquil water bodies or shaded park explorations. Weather in August »

Weather in September

September marks the descent into the fall season, with temperatures beginning to cool and the landscape transitioning to hues of orange and yellow. Highest temperatures during the day hover around 76.5°F (24.7°C), a relief after the intense summer heat. Weather in September »

Weather in October

October is characterized by the full sway of the fall season, casting a gorgeous, rustic vibe over Newark. As the days grow shorter and the temperatures continue to fall, the city gears up for Halloween-themed events and pumpkin picking adventures. Weather in October »

Weather in November

The arrival of November brings about an unmistakable chill in Newark, as the month marks the transition to winter. Average high temperatures dip as low as 52.9°F (11.6°C), replacing the mildness of previous months. As trees shed their leaves, the air fills with the familiar scent of autumn, and the city itself slips quietly into the holiday spirit. Weather in November »

Weather in December

Rounding out the year, December in Newark is a festive, wintery period with temperatures falling further to 44.1°F (6.7°C) at the highest. The city transforms into a winter wonderland, adorned with festive lights and holiday decorations. Weather in December »
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Newark?

The coldest period in Newark is January, when temperatures fluctuate between an average high of 37.8°F (3.2°C) and a low of 25.7°F (-3.5°C).

What is the driest month in Newark?

January is the month with the least rainfall in Newark, Delaware. Rain falls for 9.3 days and accumulates 2.24" (57mm) of precipitation.

How many days does it rain in Newark?

In Newark, during the entire year, the rain falls for 168.9 days and collects up to 34.84" (885mm) of precipitation.

When does it snow in Newark?

January through May, November and December are months with snowfall in Newark.

How much does it snow in Newark?

In Newark, during the entire year, snow falls for 18.1 days and aggregates up to 8.86" (225mm) of snow.

What are the months with the lowest UV index in Newark?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Newark, Delaware.

What is the month with the least sunshine in Newark?

February has the least sunshine of the year in Newark, with an average of 5h of sunshine.

When does it snow the most in Newark?

The month with the most snowfall in Newark is March, when snow falls for 3.8 days and typically aggregates up to 2.76" (70mm) of snow.

When is Daylight Saving Time (DST) in Newark?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the least humid month in Newark?

With an average relative humidity of 73%, April is the least humid month.

What is the most humid month in Newark?

The months with the highest humidity are May, September and October, with an average relative humidity of 78%.

What are the months with the highest UV index in Newark?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

When it does not snow in Newark?

In Newark, snow does not fall in June through October.

When are the longest days in Newark?

June has the longest days of the year in Newark, Delaware, with an average of 14h and 54min of daylight.

What part of the year is the hottest in Newark?

July is the month that records the highest temperatures in Newark, with averages ranging from a high of 84.7°F (29.3°C) to a low of 68°F (20°C).

What month has the most sunshine in Newark?

July has the most sunshine of the year in Newark, with an average of 10.8h of sunshine.

What is the rainiest month in Newark?

August is the month with the most rainfall in Newark. Rain falls for 17 days and accumulates 4.17" (106mm) of precipitation.

What is the month with the shortest days in Newark?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

Average temperature
Newark, DE

Average temperature - Newark, DE

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.8°F).

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure
Newark, DE

Average pressure - Newark, DE

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed
Newark, DE

Average wind speed - Newark, DE

The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity
Newark, DE

Average humidity - Newark, DE

The months with the highest relative humidity are May, September and October (78%).
The month with the lowest relative humidity is April (73%).

Average rainfall
Newark, DE

Average rainfall - Newark, DE

The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (2.24").

Average rainfall days
Newark, DE

Average rainfall days - Newark, DE

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (9.3 days).

Average snowfall
Newark, DE

Average snowfall - Newark, DE

The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Newark, DE

Average snowfall days - Newark, DE

The month with the highest number of snowfall days is January (5.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight / Average sunshine
Newark, DE

Average daylight / Average sunshine - Newark, DE

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days
Newark, DE

Average sunshine days - Newark, DE

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (9.7 days).

Average UV index
Newark, DE

Average UV index - Newark, DE

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average visibility
Newark, DE

Average visibility - Newark, DE

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Newark, Delaware, USA

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