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Contents
- The climate of Delaware City
- The best time to visit Delaware City
- The worst time to visit Delaware City
- Spring weather in Delaware City
- Summer weather in Delaware City
- Autumn weather in Delaware City
- Winter weather in Delaware City
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average sea temperature
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Delaware City
Delaware City resides in a geographic area characterized by a humid subtropical climate, having no dry season, in accordance with the Köppen climate system classification; it is labeled as a Cfa climate zone. A significant characteristic of this climate type involves the presence of rainfall throughout the year, a phenomena reflected in the climate data for Delaware City.
Temperature variations over the course of the year exhibit a range from a minimum of 26.8°F (-2.9°C) in the colder months to a summer peak of around 84.7°F (29.3°C). Individual months display marked fluctuations in terms of relative humidity, with average readings lying between 72% and 78%. Rainfall in Delaware City also sees yearly modifications, amounting from 1.54" (39mm) to 3.11" (79mm) monthly, paralleled by the number of rainfall days spanning from 7.8 to 16.1 days per month.
The months of December through February record considerable snowfall, measuring from 0.2" (5mm) to 1.65" (42mm), with the occurrence of snowy days ranging from 0.1 to 4.3 days per month. The daylight hours extend from a shorter duration of 9.4 hours to a longer span of 14.9 hours, while the sunshine days vary between 11.8 to 20.5 days anually. It's notable that Delaware City experiences a rather consistent visibility of 6 miles throughout the different months.
Temperature variations over the course of the year exhibit a range from a minimum of 26.8°F (-2.9°C) in the colder months to a summer peak of around 84.7°F (29.3°C). Individual months display marked fluctuations in terms of relative humidity, with average readings lying between 72% and 78%. Rainfall in Delaware City also sees yearly modifications, amounting from 1.54" (39mm) to 3.11" (79mm) monthly, paralleled by the number of rainfall days spanning from 7.8 to 16.1 days per month.
The months of December through February record considerable snowfall, measuring from 0.2" (5mm) to 1.65" (42mm), with the occurrence of snowy days ranging from 0.1 to 4.3 days per month. The daylight hours extend from a shorter duration of 9.4 hours to a longer span of 14.9 hours, while the sunshine days vary between 11.8 to 20.5 days anually. It's notable that Delaware City experiences a rather consistent visibility of 6 miles throughout the different months.
The best time to visit Delaware City
The season between May and September offers travelers an optimal opportunity to explore Delaware City to the fullest. During these warm months, the temperature moderates around the pleasant range of 62.4°F (16.9°C) to 80.1°F (26.7°C), accompanied by sufficient daylight hours extending between 13.3 to 14.9 hours. Sea temperatures are equally welcoming, from 53.9°F (12.2°C) to 74.4°F (23.6°C) respectively, perfect for water activities such as boating or fishing. The UV index is notably high, around 6, thus, sunscreens and protective gear would be imperative for outdoor pursuits.
The worst time to visit Delaware City
Planning a visit during December, January, or February might be unfavorable because these months record the lowest temperature readings between 26.8°F (-2.9°C) to 35.2°F (1.8°C), paired with decreased daylight duration from 9.4 to 10.7 hours. These winter months also present the risk of snowfall, reaching up to 1.65" (42mm) in certain instances. Furthermore, sea temperatures plunge to a range of 42.4°F (5.8°C) to 44.4°F (6.9°C), restricting water-based activities.
Spring weather in Delaware City
Taking a look into Delaware City springtime weather, the transition from March to May is marked by increased temperatures from 50.2°F (10.1°C) to 72°F (22.2°C). Correspondingly, daylight hours expand from 12 to 14.4 hours, enhancing the overall visibility of the city. Nonetheless, it is essential to keep in mind that these months also register an increase in rainfall, as the volume swells from 1.97" (50mm) in March to 2.17" (55mm) in May.
Summer weather in Delaware City
Highlighting Delaware City's summer months of June, July, and August, the temperature numbers indicate a warm season, with highs between 80.1°F (26.7°C) to 84.7°F (29.3°C) and lows vacillating from 63°F (17.2°C) to 68.4°F (20.2°C). The city is the brightest during these months, with sunlight hours peaking at 10.7 hours in July. This warm summer period also observes the highest sea temperatures, peaking at 76.3°F (24.6°C) in August.
Autumn weather in Delaware City
The autumn phase in Delaware City, falling between September and November, witnesses a gradual descent in temperature readings, commencing with 77°F (25°C) in September and retracting to 53.4°F (11.9°C) by November. Previously high sea temperatures also follow a downward trend from 72.1°F (22.3°C) down to a cooler 55.5°F (13.1°C). In concurrence with the season’s change, daylight hours contract from 12.4 hours to 10 hours.
Winter weather in Delaware City
The onset of winter in Delaware City heralds a significant dip in temperatures, tapering down between 38.3°F (3.5°C) to 26.8°F (-2.9°C). Occurrence of snowfall is prevalent during this season, registering snow days extending from 0.1 to 4.3 days, thus replenishing the city with a wintery charm. However, outdoor activities might become somewhat challenging due to shortened daylight hours fluctuating from 9.4 to 10.7 hours.
Weather in January
January is the coldest month of the year in Delaware City, kicking off with typical winter conditions. Despite it being the start of the year, those looking to enjoy outdoor activities should be prepared for the cold. The average high temperature reaches 38.3°F (3.5°C), while the low can drop to 26.8°F (-2.9°C). Weather in January »
Weather in February
Weather conditions in February show a slight improvement compared to January. The temperature gradually picks up moving from the colder January, although still on the chilly side for most people. Relative humidity in February stands at 76%, slightly higher than the previous month. Weather in February »
Weather in March
March signals the transition from winter to spring in Delaware City, bringing with it milder temperatures and increasing daylight hours. Visitors can expect a blend of rain and snow as winter phases out. The month sees an average high temperature of 50.2°F (10.1°C) and a relative humidity of around 73%. Weather in March »
Weather in April
In April, Delaware City experiences a significant shift in weather as spring starts to take effect. During this month, the city experiences a welcome change in temperature and rainfall. The conditions start to dry up, with rain and snow becoming less frequent. Weather in April »
Weather in May
May is characterized by the onset of warmer weather as summer begins to creep in. The city receives an increased amount of sunlight, enhancing the daylight hours. This period is ideal for outdoor activities and is heralded by the blooming of flowers and trees. Weather in May »
Weather in June
The weather in June swings towards summer-like temperatures, resulting in the warmest conditions seen so far in the year. The extended daylight hours make for long, enjoyable summer days. Sea temperatures reach 66.6°F (19.2°C), offering comfortable conditions for watersports or swimming. Weather in June »
Weather in July
July is the heart of summer in Delaware City, with weather patterns leaning towards warm and dry conditions. The temperature, daylight hours, and sea temperatures reach their peak during this month. Notably, the sea temperature reaches a comfortable 74.4°F (23.6°C), ideal for beach activities. Weather in July »
Weather in August
In August, Delaware City experiences high temperatures reflective of its summer climate. Despite this being the case, the conditions become slightly milder compared to July. The sea continues to stay warm, creating ideal conditions for water lovers. Weather in August »
Weather in September
Delaware City, in September, witnesses the onset of autumn marked by milder temperatures and reduced daylight hours. The weather remains largely dry, combined with cooler evenings that signal the departure of summer. Despite this, September continues to embrace warmth with high temperatures averaging 77°F (25°C). Weather in September »
Weather in October
October in Delaware City is characterized by a clear shift into autumn. Cooler temperatures start to dominate the weather, giving way to a crisp atmosphere. The decline in maximum temperatures, alongside the onset of the fall foliage, adds to the city's scenic beauty. Weather in October »
Weather in November
November presents significant drops in temperature as Delaware City prepares for winter. The weather transitions from the mild conditions of October to the city's winter climate. The fall foliage reaches its peak, creating a vibrant, picturesque landscape. Weather in November »
Weather in December
Delaware City wraps up the year with December, a month characterized by winter weather conditions. The city escapes into the chilly grip of winter, with snow returning to the forecast. An average high temperature reaching 44.4°F (6.9°C) and increasing chances of snowfall confirm the winter atmosphere. Weather in December »
Updated: Jul 13, 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
What is the coldest time of year?
Delaware City witnesses the coldest weather in January, with temperatures averaging a high of 38.3°F (3.5°C) and a low of 26.8°F (-2.9°C).
What is the driest month?
January is the month with the least rainfall. Rain falls for 7.8 days and accumulates 1.54" (39mm) of precipitation.
How many days does it rain?
In Delaware City, Delaware, during the entire year, the rain falls for 145.9 days and collects up to 24.45" (621mm) of precipitation.
When does it snow?
January through April, November and December are months with snowfall.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 4.3 days and typically aggregates up to 1.65" (42mm) of snow.
How much does it snow?
In Delaware City, during the entire year, snow falls for 13 days and aggregates up to 5.24" (133mm) of snow.
What is the month with the lowest UV index?
The months with the lowest UV index in Delaware City are January, February, November and December, with an average maximum UV index of 2.
What month is the ocean coldest?
With an average ocean temperature of 41°F (5°C), February is the month with the coldest seawater.
What is the month with the least sunshine?
The month with the least sunshine is February, with an average of 4.9h of sunshine.
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.
What is the least humid month?
April is the least humid month, with an average relative humidity of 72%.
When it does not snow?
May through October are months without snowfall.
When is the highest UV index?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days?
With an average of 14h and 54min of daylight, June has the longest days of the year.
What is the hottest time of year?
July is the month when Delaware City experiences its warmest temperatures, averaging a high of 84.7°F (29.3°C) and a low of 68.4°F (20.2°C).
What month has the most sunshine?
With an average of 10.7h of sunshine, July has the most sunshine of the year.
What is the wettest month?
The month with the most rainfall is August, when the rain falls for 15.3 days and typically aggregates up to 3.11" (79mm) of precipitation.
What month is the ocean warmest?
With an average ocean temperature of 76.3°F (24.6°C), August is the month with the warmest seawater.
What is the most humid month?
The most humid month is October, with an average relative humidity of 78%.
What is the month with the shortest days?
The month with the shortest days in Delaware City is December, with an average of 9h and 24min of daylight.
Average temperature
Delaware City, 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 (38.3°F).
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure
Delaware City, DE
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.1"Hg
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
Delaware City, DE
- Average wind speed in January:
8.8mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.1mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6.1mph - Average wind speed in October:
7.5mph - Average wind speed in November:
7.9mph - Average wind speed in December:
8.1mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Delaware City, DE
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Delaware City, DE
- Average rainfall in January:
1.54" - Average rainfall in February:
1.65" - Average rainfall in March:
1.97" - Average rainfall in April:
1.89" - Average rainfall in May:
2.17" - Average rainfall in June:
2.2"
- Average rainfall in July:
2.72" - Average rainfall in August:
3.11" - Average rainfall in September:
1.65" - Average rainfall in October:
1.81" - Average rainfall in November:
1.57" - Average rainfall in December:
2.17"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days
Delaware City, DE
- Average rainfall days in January:
7.8 days - Average rainfall days in February:
8.9 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
16.1 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
9.6 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall
Delaware City, DE
The month with the highest snowfall is January (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Delaware City, DE
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.1 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:
0.4 days - Average snowfall days in December:
2.1 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature
Delaware City, DE
The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).
Average daylight / Average sunshine
Delaware City, DE
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
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).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Delaware City, DE
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
15.9 days - Average sunshine days in April:
14.4 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
18.3 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
18.8 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Delaware City, 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 cloud cover
Delaware City, DE
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
Delaware City, 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).
Delaware City, Delaware, USA
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