Climate and monthly weather forecastSeaford, DE
Climate and monthly weather forecast
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 »Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
January is the least humid month in Seaford, with an average relative humidity of 74%.
In Seaford, Delaware, during the entire year, the rain falls for 95.8 days and collects up to 8.03" (204mm) of precipitation.
January through March, November and December are months with snowfall 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.
Throughout the year, in Seaford, Delaware, there are 5.6 snowfall days, and 0.94" (24mm) of snow is accumulated.
January and December, with an average maximum UV index of 2, are months with the lowest UV index in Seaford.
With an average of 5.1h of sunshine, February has the least sunshine of the year.
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.
April through October are months without snowfall in Seaford, Delaware.
The months with the highest humidity in Seaford, Delaware, are May, August and September, with an average relative humidity of 80%.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Seaford.
The month with the longest days in Seaford, Delaware, is June, with an average of 14h and 48min of daylight.
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.
The months with the most rainfall in Seaford, Delaware, are July and August, with an average 1.06" (27mm) of precipitation.
July has the most sunshine of the year in Seaford, Delaware, with an average of 10.8h of sunshine.
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.
With an average of 9h and 30min of daylight, December has the shortest days of the year.
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).
Average pressure
Seaford, DE
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.1"Hg
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
Seaford, DE
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.5mph - Average wind speed in May:
8mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6mph - Average wind speed in September:
7mph - Average wind speed in October:
8.1mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.6mph
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).
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%).
Average rainfall
Seaford, DE
- Average rainfall in January:
0.47" - Average rainfall in February:
0.59" - Average rainfall in March:
0.59" - Average rainfall in April:
0.51" - Average rainfall in May:
0.59" - Average rainfall in June:
0.87"
- Average rainfall in July:
1.06" - Average rainfall in August:
1.06" - Average rainfall in September:
0.39" - Average rainfall in October:
0.71" - Average rainfall in November:
0.59" - Average rainfall in December:
0.59"
The wettest months (with the highest rainfall) are July and August (1.06").
The driest month (with the least rainfall) is September (0.39").
Average rainfall days
Seaford, DE
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
6.4 days - Average rainfall days in March:
8.7 days - Average rainfall days in April:
9.5 days - Average rainfall days in May:
9.9 days - Average rainfall days in June:
8.6 days
- Average rainfall days in July:
12 days - Average rainfall days in August:
10.4 days - Average rainfall days in September:
7.7 days - Average rainfall days in October:
6.5 days - Average rainfall days in November:
4.9 days - Average rainfall days in December:
6 days
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).
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").
Average snowfall days
Seaford, DE
- Average snowfall days in January:
2 days - Average snowfall days in February:
1.6 days - Average snowfall days in March:
1 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.1 days - Average snowfall days in December:
0.9 days
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).
Average daylight / Average sunshine
Seaford, DE
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
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).
- Average sunshine in January:
5h and 24min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 42min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 48min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 12min
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).
Average sunshine days
Seaford, DE
- Average sunshine days in January:
23.7 days - Average sunshine days in February:
19.5 days - Average sunshine days in March:
19.3 days - Average sunshine days in April:
18.3 days - Average sunshine days in May:
17.8 days - Average sunshine days in June:
18.9 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
17 days - Average sunshine days in September:
19.6 days - Average sunshine days in October:
22.6 days - Average sunshine days in November:
23.9 days - Average sunshine days in December:
23.8 days
The month with the most sunshine days is November (23.9 days).
The month with the least sunshine days is July (15.7 days).
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).
Average cloud cover
Seaford, DE
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
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).
