Climate and monthly weather forecast
Long Neck, DE

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Climate and monthly weather forecast

The climate of Long Neck

Long Neck, a geographic location in Delaware, USA, experiences a Humid subtropical climate under the Köppen climate classification (Cfa). There is no dry season throughout the year, and the area receives a fair amount of rainfall annually.

Across the year, the area sees a broad swing in temperatures. During the colder months, the temperatures average from 31.5°F (-0.3°C) to 41.7°F (5.4°C) and, in the warmer months, from between 70.3°F (21.3°C) and 82°F (27.8°C). However, the relative humidity remains relatively stable, averaging around 75% to 81% throughout the year.

Rainfall is a constant feature in Long Neck's climate. Every month of the year sees decent precipitation from 1.46" (37mm) to 2.95" (75mm), with the latter half of the year experiencing peak rainfall. Days with rain ranges from 7.4 to 16.7 per month. Snowfall is minimal, occurring mainly in winter, with the amounts ranging from 0.28" (7mm) to 1.22" (31mm), and the number of snowy days varying from 0 to 3.1.

While the sea temperature fluctuates from 40.7°F (4.8°C) to 76.9°F (24.9°C), the daylight hours span from 9.8 to 14.8 hours. With sunshine hours peaking at 11 hours in summer and retreating to as low as 5.1 hours in winter, this mirrors the pattern of longer days in the warmer months. The UV index also follows a similar trend, spiking in summer with a UV index of 6 and dipping to 2 in winter.

The best time to visit Long Neck

Visitors seeking to experience the best of Long Neck's climate should consider making their trip during the spring and early summer, between May to June. During this time, temperatures range from 57.4°F (14.1°C) to 77°F (25°C), making outdoor activities pleasant. Sunshine totals around 9.3 to 10.5 hours per day, each day packed with sufficient light for sightseeing. Sea temperatures also begin to warm up during this period, reaching 56.8°F (13.8°C) to 68.2°F (20.1°C), ideal for those looking to indulge in marine activities.

The worst time to visit Long Neck

Tourists planning a visit to Long Neck would preferably want to avoid late summer to early autumn. Specifically, the months of July to August, when the highest temperatures of 70.3°F (21.3°C) to 82°F (27.8°C) are recorded. Despite the pleasant sea temperatures ranging between 75°F (23.9°C) to 76.9°F (24.9°C), the higher levels of rainfall of 2.95" (75mm) coupled with relative humidity averaging at 79%, could potentially disrupt outdoor activities.

Spring weather in Long Neck

Spring in Long Neck, from March to May, is a period of warming temperatures and increasing daylight. During these months, the temperature varies from 38.8°F (3.8°C) to 68.5°F (20.3°C). Daylight hours gradually extend from 12 hours to 14.3 hours as spring progresses. Rainfall during spring ranges between 1.65" (42mm) to 2.13" (54mm) and the number of rainy days can reach up to 15.1 in May. However, the amount of sunshine steadily improves, increasing from 6.8 hours in March to 9.3 hours by May.

Summer weather in Long Neck

Summers in Long Neck, from June to August, are warm and generally humid. Temperatures peak during these months, averaging from 66.4°F (19.1°C) to 82°F (27.8°C). Days are longest in summer, with daylight hours extending up to 14.8 hours. Rainfall during these months is also the highest, measuring from 2.28" (58mm) to 2.95" (75mm). The relative humidity during this period averages around 79%, contributing to the feeling of warmth. Sunshine is abundant, with more than 10.5 hours of bright sun every day in June and July.

Autumn weather in Long Neck

Autumn heralds a transition from the warm, humid summers to the chillier winters. September to November sees temperatures ranging from 56.1°F (13.4°C) to 75.7°F (24.3°C). Daylight hours decrease over autumn, ranging from 12.4 hours in September to 10.1 hours by November. Rainfall measures between 2.13" (54mm) and 1.89" (48mm) while the amount of sunshine also reduces, fluctuating between 9.3 hours and 5.7 hours.

Winter weather in Long Neck

Winter in Long Neck, from December to February, is cold with temperatures averaging from 31.5°F (-0.3°C) to 44.4°F (6.9°C). Daylight hours are shortest in winter, with an average of 9.8 hours to 10.8 hours. Despite the lower temperatures, the relative humidity remains relatively high, averaging around 75%. The winter months do see some snowfall, predominantly in December and January, with 1.22" (31mm) and 1.02" (26mm) respectively. Sunshine hours are low, varying from 5.2 hours to 5.5 hours.

Weather in January

January in Long Neck, Delaware, tends to be characterized by cold temperatures, bracing winds, and typically a light snowfall. The chill in the air is most prominent during the evenings, with temperatures plunging to as low as 31.5°F (-0.3°C). Weather in January »

Weather in February

Weather conditions in Long Neck undergo a mild transformation as the calendar flips to February. A shift from January sees temperatures slightly rebounding, yet remaining in the winter realm. Surprisingly, February witnesses a decrease in snowfall, transitioning more towards a rainy weather pattern. Weather in February »

Weather in March

March signals the advent of Spring in Long Neck with a noticeable increase in temperatures, decreased snowfall, and an increase in daylight hours. Adding to these changes, is a relative increase in humidity to 75%, indicating signs of weather transformation. Weather in March »

Weather in April

April traditionally acts as a bridge between March's wet conditions and the upcoming brighter months in Long Neck. There is a significant leap in temperatures compared to previous months, indicating the steady progress towards summer. Weather in April »

Weather in May

In May, Long Neck becomes a hotspot for outdoor adventures as the weather warms up further, inviting locals and visitors to emerge and enjoy the pleasantries that the city has to offer. Highlighting the temperature increase, average lows approach a comfortable 57.4°F (14.1°C), signaling an end to chilly nights. Weather in May »

Weather in June

As June rolls around, summer officially starts in Long Neck, bringing with it an array of sun-soaked days. Stepping away from May's milder conditions, June introduces highs around 77°F (25°C), setting a fitting summer tone. This month experiences a drop in humidity, lending to comfortable conditions for outdoor adventures. Weather in June »

Weather in July

July is the pinnacle of summer in Long Neck, Delaware, with its weather patterns dominated by warm temperatures and sunshine-filled days. Although temperatures tend to soar, the peak high recorded is around 82°F (27.8°C), making sure the weather remains bearable. Weather in July »

Weather in August

August sees Long Neck in the middle of the dog days of summer, with the weather remaining consistent with the preceding month. There is no major shift observed from July, maintaining a relatively stable climate with warm days and comfortable nights. Weather in August »

Weather in September

September marks the beginning of Fall for Long Neck, and a slow cooling off from the sweltering summer. Temperatures begin their descent with an average high falling to around 75.7°F (24.3°C); a clear indication of an incoming autumn. Weather in September »

Weather in October

October presents Long Neck in full autumn swing, exhibiting a splendid array of vibrant foliage. Taking a major step down from September, October experiences a noticeable decline in temperature, offering a fresh, crisp environment. Weather in October »

Weather in November

November in Long Neck signifies an end to Autumn and a gentle introduction of the Winter chill. A significant drop from October is observed, delivering colder temperatures and slightly shorter days. Brisk winds present a chilling reminder of the upcoming winter, as daytime temperature highs drop to an average of 54.9°F (12.7°C). Weather in November »

Weather in December

December welcomes the official start of winter in Long Neck, exhibiting the typical signs of the season with cold temperatures and short daylight hours. Stepping down further in the cold ladder with temperatures consistently under 50°F (10°C), December days and nights become increasingly frosty. Weather in December »
Updated: Aug 5, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?
January is the coldest month of the year, registering average temperatures as high as 41.7°F (5.4°C) and as low as 31.5°F (-0.3°C).
What are the least humid months?
The months with the lowest humidity in Long Neck, Delaware, are January and November, with an average relative humidity of 74%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 7.4 days and typically collects 1.46" (37mm) of precipitation.
How much does it rain?
Throughout the year, in Long Neck, there are 147.1 rainfall days, and 25.59" (650mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March, November and December.
When does it snow the most in Long Neck?
January is the month with the most snowfall. Snow falls for 3.1 days and accumulates 1.22" (31mm) of snow.
How many days does it snow in Long Neck?
Throughout the year, there are 9.4 snowfall days, and 3.39" (86mm) of snow is accumulated.
What are the months with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
What is the month with the coldest ocean?
The month with the coldest seawater is February, with an average ocean temperature of 40.6°F (4.8°C).
What is the month with the least sunshine?
With an average of 5.1h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST)?
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.
When it does not snow?
April through October are months without snowfall.
What is the most humid month?
May is the most humid month, with an average relative humidity of 81%.
When is the highest UV index in Long Neck?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Long Neck?
The month with the longest days is June, with an average of 14h and 48min of daylight.
What part of the year is the hottest?
Temperature records mark July as the warmest month, with highs averaging 82°F (27.8°C) and lows at 71.6°F (22°C).
What is the wettest month?
The wettest months in Long Neck are July and August, with an average 2.95" (75mm) of rainfall.
What month has the most sunshine?
The month with the most sunshine in Long Neck is July, with an average of 11h of sunshine.
What month is the ocean warmest?
With an average ocean temperature of 77°F (25°C), August is the month with the warmest seawater.
What is the month with the shortest days in Long Neck?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
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Average temperature - Long Neck, DE
Average temperature
Long Neck, DE

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (41.7°F).

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure - Long Neck, DE
Average pressure
Long Neck, DE

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed - Long Neck, DE
Average wind speed
Long Neck, DE

The windiest months (with the highest average wind speed) are January, February and March (11.1mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

Average humidity - Long Neck, DE
Average humidity
Long Neck, DE

The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall - Long Neck, DE
Average rainfall
Long Neck, DE

The wettest months (with the highest rainfall) are July and August (2.95").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days - Long Neck, DE
Average rainfall days
Long Neck, DE

The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is January (7.4 days).

Average snowfall - Long Neck, DE
Average snowfall
Long Neck, DE

The month with the highest snowfall is January (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days - Long Neck, DE
Average snowfall days
Long Neck, DE

The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average sea temperature - Long Neck, DE
Average sea temperature
Long Neck, DE

The best month for swimming (with the highest average sea temperature) is August (76.9°F).
The coldest month (with the lowest average sea temperature) is February (40.7°F).

Average daylight / Average sunshine - Long Neck, DE
Average daylight / Average sunshine
Long Neck, DE

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days - Long Neck, DE
Average sunshine days
Long Neck, DE

The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is July (12.2 days).

Average UV index - Long Neck, DE
Average UV index
Long Neck, 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 and December (UV index 2).

Average cloud cover - Long Neck, DE
Average cloud cover
Long Neck, DE

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility - Long Neck, DE
Average visibility
Long Neck, 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).

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