Climate and monthly weather forecast
Seaford, DE

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The climate of Seaford

Situated in Delaware, USA, Seaford experiences a Humid subtropical climate, devoid of any dry season, as per the Köppen climate classification which labels it as Cfa. The weather throughout the year is generally warm with mild humidity, allowing for the relative comfort of its inhabitants and visitors.

Assessing the climate data, it becomes apparent that the fluctuations in temperature are common throughout the year. The highest average temperatures hover around 84.4°F (29.1°C), typically peaking in July. Meanwhile, the lowest recorded average temperatures drop to a chilly 29.1°F (-1.6°C), making January the coldest month. The humidity level remains roughly steady, ranging from 74 to 80% throughout the year. An important aspect to consider is the city's precipitation levels. The amount of rainfall ranges from 0.39" (10mm) to 1.06" (27mm) per month, with the wettest months being July and August.

Wind speed remains consistent throughout the year, with minor fluctuations between 6mph (9.7km/h) to 9.7mph (15.6km/h). However, the peak values for gusts occur during winter, reaching up to 15.4mph (24.8km/h). The snowfall, somewhat of a rarity in a subtropical climate, is seen only in January, February, and December, with January having the most snowfall days.

The best time to visit Seaford

Visitor's preferred time to visit Seaford may depend greatly on their weather preference. However, considering the average climate parameters, it could be argued that the best time to visit Seaford would be in the transitional seasons: spring and autumn. During these months, the weather is generally mild, with temperatures ranging from 51.3°F (10.7°C) to 76.6°F (24.8°C) and lower humidity levels than in the summer months.

The worst time to visit Seaford

Planning a visit to Seaford in the middle of summer or winter might not yield the most comfortable experience. The height of summer, particularly July and August, might be sweltering for some visitors with heat peaking at 84.4°F (29.1°C) coupled with a high level of humidity. The winter months from December to February, are not much better, with frigid temperatures that dip as low as 29.1°F (-1.6°C) in January.

Spring weather in Seaford

Springtime in Seaford is known for its mild climate, with temperatures fluctuating from 51.3°F (10.7°C) to 71.6°F (22°C) between March and May. Rainfall during this period is relatively moderate, with April experiencing the highest precipitation. The wind speed remains consistent across this season, with March experiencing a slight bump in wind speed.

Summer weather in Seaford

Summers in Seaford are consistently warm, with temperatures escalating to a high average of 84.4°F (29.1°C) in July before cooling down slightly to 82.6°F (28.1°C) in August. Precipitation sees a notable increase in summer, with July and August recording the highest rainfall.

Autumn weather in Seaford

Autumn brings a perceptible change in the climate as the temperatures cool off from a high of 76.6°F (24.8°C) in September to a mild average of 55.4°F (13°C) in November. Rainfall also observes a gradual reduction during the autumn months, with November seeing the lowest precipitation.

Winter weather in Seaford

Winters in Seaford are characterized by chilly temperatures and the occasional snow. The temperatures drop significantly, from an average high of 47.5°F (8.6°C) in December to an average low of 29.1°F (-1.6°C) in January. Snowfall is observed in December and January, with January having the largest number of snowfall days.

Weather in January

January introduces Seaford, Delaware to the new year with wintry weather conditions. An average mixture of moderate wetness and cold is observed this month. The bareness of trees is an indicator of the coldest temperature registered which come to 29.1°F (-1.6°C) as the lowest. Weather in January »

Weather in February

In contrast to January, February in Seaford brings a gradual surge in temperature contributing to a milder winter. Days start getting slightly longer due to the change in astronomical season. A unique feature to note is the highest snowfall seen this month measured at 0.16" (4mm). Weather in February »

Weather in March

Spring peeking in can be noticed in March weather conditions of Seaford, Delaware. A noticeable rise in temperature provides relief from the winter chills. The climate is characterized by gentle spring rainfall rather than snowy precipitation. Weather in March »

Weather in April

Compared to March, April sets the stage for a true spring climate in Seaford. With flowers blooming, the color palette of nature comes out in its truest form. The temperature range goes up with 62.6°F (17°C) being the highest which indicates a significant rise in warmth. Weather in April »

Weather in May

May in Seaford, Delaware marks the transition from spring to the much-awaited summer season. With the temperature and humidity rising steadily, the month unfolds the city in a warm embrace. The weather is characterized by an increased amount of rainfall, of 0.59" (15mm), providing a cozy feel to the ambiance. Weather in May »

Weather in June

The arrival of June marks the onset of the definitive summer season in Seaford, offering heat, humidity, and lengthy days. The weather exhibits a pattern of warm days and mild nights. A remarkable trait of this month's weather is the peak sunshine duration of 10.3 hours that Seaford enjoys. Weather in June »

Weather in July

July, the crown of summer in Seaford, Delaware, tops the year with the highest temperatures. The days are filled with brilliant sunlight and a sultry heat prevails. Prolonged hours of sunlight can be seen along with a significant rise in temperature up to 84.4°F (29.1°C). Weather in July »

Weather in August

In August, the weather in Seaford begins to signal the nearing end of summer with slight and gradual changes in the temperature. Far from the chilly winter days, it still remains as one of the warmest months. As the cloud cover increases, a slight dip in the maximum temperature to 82.6°F (28.1°C) can be felt in the city. Weather in August »

Weather in September

As September commences, Seaford's weather edges towards fall, offering leisurely warm days and crisp, cool nights. The month boasts a balanced blend of precipitation and sunshine. A notable factor is the sizeable drop in rainfall to 0.39" (10mm) compared to the previous month. Weather in September »

Weather in October

October brings a discernible change in Seaford, Delaware's weather from the previous month. With the fall season in full swing, the city experiences cooler days and colder nights. This weather prepares the city residents for the upcoming winter season. Weather in October »

Weather in November

November in Seaford, Delaware, witnesses rolling in of winter chill with a drop in temperature and reduction in daylight. Despite the temperature lowering, a unique facet of this month is that it sees less rainfall than in October, dropping to 0.59" (15mm). Weather in November »

Weather in December

December; the concluding chapter of the year in Seaford, Delaware, wraps up the weather cycle with truly wintry conditions. The chill in the air is palpable and snowfall becomes a common sight in the city. A distinct characteristic of this month is the reappearance of snowfall, which measures 0.12" (3mm). Weather in December »
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Frequently asked questions

What is the coldest time of year in Seaford?

January brings the lowest temperatures in Seaford, Delaware, with an average high of 41.5°F (5.3°C) and an average low of 29.1°F (-1.6°C).

What is the least humid month in Seaford?

January is the least humid month in Seaford, with an average relative humidity of 74%.

How many days does it rain in Seaford?

In Seaford, Delaware, during the entire year, the rain falls for 95.8 days and collects up to 8.03" (204mm) of precipitation.

When does it snow in Seaford?

January through March, November and December are months with snowfall in Seaford.

When does it snow the most in Seaford?

The month with the most snowfall in Seaford is January, when snow falls for 2 days and typically aggregates up to 0.35" (9mm) of snow.

How much does it snow in Seaford?

Throughout the year, in Seaford, Delaware, there are 5.6 snowfall days, and 0.94" (24mm) of snow is accumulated.

What is the month with the lowest UV index in Seaford?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Seaford.

What is the month with the least sunshine in Seaford?

With an average of 5.1h of sunshine, February has the least sunshine of the year.

When is Daylight Saving Time (DST) in Seaford?

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 in Seaford?

April through October are months without snowfall in Seaford, Delaware.

What is the most humid month in Seaford?

The months with the highest humidity in Seaford, Delaware, are May, August and September, with an average relative humidity of 80%.

When is the highest UV index in Seaford?

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

When are the longest days in Seaford?

The month with the longest days in Seaford, Delaware, is June, with an average of 14h and 48min of daylight.

What part of the year is the hottest in Seaford?

July, with average temperatures reaching a high of 84.4°F (29.1°C) and a low of 69.8°F (21°C), is the warmest month in Seaford.

What is the wettest month in Seaford?

The months with the most rainfall in Seaford, Delaware, are July and August, with an average 1.06" (27mm) of precipitation.

What month has the most sunshine in Seaford?

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

What is the driest month in Seaford?

The month with the least rainfall in Seaford is September, when the rain falls for 7.7 days and typically collects 0.39" (10mm) of precipitation.

What is the month with the shortest days in Seaford?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

Average temperature
Seaford, DE

Average temperature - Seaford, DE

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (41.5°F).

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).

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Average pressure
Seaford, DE

Average pressure - Seaford, 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).

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Average wind speed
Seaford, DE

Average wind speed - Seaford, DE

The windiest month (with the highest average wind speed) is February (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity
Seaford, DE

Average humidity - Seaford, DE

The months with the highest relative humidity are May, August and September (80%).
The month with the lowest relative humidity is January (74%).

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Average rainfall
Seaford, DE

Average rainfall - Seaford, DE

The wettest months (with the highest rainfall) are July and August (1.06").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days
Seaford, DE

Average rainfall days - Seaford, DE

The month with the highest number of rainy days is July (12 days).
The month with the least rainy days is November (4.9 days).

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Average snowfall
Seaford, DE

Average snowfall - Seaford, DE

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Seaford, DE

Average snowfall days - Seaford, DE

The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Seaford, DE

Average daylight / Average sunshine - Seaford, 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: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

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Average sunshine days
Seaford, DE

Average sunshine days - Seaford, DE

The month with the most sunshine days is November (23.9 days).
The month with the least sunshine days is July (15.7 days).

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Average UV index
Seaford, DE

Average UV index - Seaford, 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).

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Average visibility
Seaford, DE

Average visibility - Seaford, 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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Seaford, Delaware, USA

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