Climate and monthly weather forecastMiddletown, DE
Climate and monthly weather forecast
The climate of Middletown
Under the Köppen climate classification, Middletown of Delaware, USA, experiences a predominant climate categorized as Cfa, which stands for a humid subtropical weather with no dry season. The town sits at a geographical vantage point that exposes it to varying weather patterns throughout the year. Changes in temperature, rainfall, and other weather phenomena are essential characteristics of the Middletown climate.Over the course of the year, temperatures in Middletown range broadly from 26.8°F (-2.9°C) in January to a high of 84.7°F (29.3°C) in July. This considerable variation in temperature directs the seasonal shifts of the region's weather. Complementing the changes in temperature is a consistent relative humidity averaging between 72% and 78%. While rainfall increases during the summer months peaking at 2.72" (69mm) in August, snowfall is primarily a winter occurrence with January and March witnessing a minor share of 1.57 and 1.5" (38mm) respectively.
Daylight hours extend from a shorter 9.8 hours in January to a longer 14.9 hours in June, corresponding with the summer solstice. The amount of sunshine enjoyed varies from a yearly low of 4.9 hours in February to a high of 10.6 hours in July. A notable feature is the wind speed, which moderately fluctuates over the year, with higher speeds from 8.8mph (14.2km/h) to 9mph (14.5km/h) between January and April and slower wind speeds ranging from 5.5mph (8.9km/h) to 7.1mph (11.4km/h) from July to October.
The best time to visit Middletown
Considering the climatic conditions, the optimal time to visit Middletown stands out to be from late spring to early summer. During this period, the highest temperatures range from 62.4°F (16.9°C) to 79.9°F (26.6°C) and the lower spectrum varies from 46°F (7.8°C) to 63.1°F (17.3°C). The complementing longer daylight hours ranging from 13.3 hours in April to 14.9 hours in June allow for more exploration and outdoor activities. A relative dropdown in rainfall during these months, specifically 1.54" (39mm) in April, combined with a substantial 8.5 to 10.1 sunshine hours further enhances the exploratory experiences in Middletown.The worst time to visit Middletown
Visitors may find the winter months from December to February less inviting, primarily due to lower temperatures and less sunshine. The highest temperatures during these months barely rise beyond the 38.7°F (3.7°C) to 42.3°F (5.7°C) range, with lowest temperatures dipping to around 26.8°F (-2.9°C) in January, the coldest month. The hours of daylight decrease considerably to approximately 9.8 hours in December and 10.7 hours in February, with limited sunshine hours hovering from 5.1 to 5.2 hours.Spring weather in Middletown
Spring ushers in a noticeable shift in the climate of Middletown. From March to May, the high temperatures steadily increase from 50.4°F (10.2°C) to 72.1°F (22.3°C), while the minimum temperatures ascend from 36°F (2.2°C) to 55.2°F (12.9°C). Rainfall averages range 1.54 to 1.93" (49mm), exhibiting a steady increase towards the end of this period. The commencement of these warmer months essentially marks the end of snowfall. Daylight duration expands from 12 hours in March to 14.4 hours in May, providing ample daylight.Summer weather in Middletown
Summer in Middletown, spanning June through August, sees high temperatures hovering around a comfortable range of 79.9°F (26.6°C) to 84.7°F (29.3°C). The lowest temperatures constitute a comfortable 63.1°F (17.3°C) in June to a warmish 68.4°F (20.2°C) in July. Rainfall reach its peak in August. Weather is typically characterized by longer daylight hours, reaching 14.9 hours in June and gradually reducing to 13.7 hours by August.Autumn weather in Middletown
In autumn, there is a perceptible cooling in Middletown. From September to November, high temperatures drop from 77°F (25°C) to 53.8°F (12.1°C), and lower temperatures shift from 61°F (16.1°C) to a brisk 40.1°F (4.5°C) by November. The average rainfall hovers between 1.46 to 1.57" (40mm) during this season, offering comparatively drier conditions apart from the onset of cooler weather.Winter weather in Middletown
Winter in Middletown exhibits a colder profile. The temperatures range from 26.8°F (-2.9°C) to 45°F (7.2°C), with the coldest peak in January. Snowfall is light and primarily restricted to January with about 1.57" (40mm), and minor occurrence in March and December. Average daylight hours recede to its annual minimum, with just 9.8 hours in December and all the way up to 10.7 hours in February.Weather in January
January in Middletown, Delaware manifests as typical winter weather. Snowfall is a common sight with an average of 1.57" (40mm), and an average of 4.5 days of snowfall. Compared to the upcoming February, January features colder temperatures but significantly fewer rainy days. Weather in January »Weather in February
As the calendar turns to February, the weather in Middletown, Delaware continues on its cold winter course. The average lowest temperature of the month increases to 29.7°F (-1.3°C). While this is still relatively cold, it indicates a gradual warming trend in comparison to January. Weather in February »Weather in March
March in Middletown is a transitional period as the grip of winter eases and signs of spring become more apparent. Once heavy with snow, the landscape begins clearing up with a notable decrease in snowfall to 1.5" (38mm). There is a significant uptick in both the highest and lowest average temperatures, suggesting that the spring thaw is firmly underway. Weather in March »Weather in April
By April, Middletown sheds the vestiges of winter entirely. The snowfall drops down to a negligible 0.2" (5mm), marking the true departure from the winter chill. As a striking contrast to March, the rise in temperatures is quite perceptible, with the average high reaching 62.4°F (16.9°C). Weather in April »Weather in May
May in Middletown, Delaware marks the onset of mild summer weather. Notably, snowfall is entirely absent, reflecting the city’s shift into a warmer season. The weather continues to warm up steadily from April, bringing higher temperatures that are ideal for outdoor activities. Weather in May »Weather in June
As summer sets in Middletown, June brings noticeably warmer temperatures. Temperatures rise from May, with the average high peaking at 79.9°F (26.6°C). The weather is comfortably warm rather than scorching, making the month perfect for enjoying outdoor activities. Weather in June »Weather in July
July is the summer climax in Middletown, with warm temperatures dominating the entire month. The average highest temperature reaches a yearly peak of 84.7°F (29.3°C). As compared to the cooler June, July is significantly heated and hazy. Weather in July »Weather in August
In August, Middletown, Delaware experiences typical late summer weather. While temperatures fall slightly from July, the highest average temperature still hovers around 82.9°F (28.3°C), indicating a relatively warm climate. A slight decrease in temperature is noted, which denotes the nearing end of the hot summer and an approaching autumn season. Weather in August »Weather in September
September in Middletown marks the shift from summer to more temperate fall weather. Temperatures start to cool down further from August with the highest average temperature dropping to 77°F (25°C). The sinking temperatures signify the gradual arrival of autumn, as the hot summer begins to fade. Weather in September »Weather in October
October in Middletown brings evident autumn weather as temperatures continue to decline. The weather, shifting from the summer heat of September, now sees an average high temperature of 65.3°F (18.5°C). Trees clothe themselves in fall colors, and the crisp air evolves into a starker contrast to the waning warmth of September. Weather in October »Weather in November
November sees Middletown, Delaware transitioning into the colder months. The stark decrease in temperatures from October is evident, with the average high falling to 53.8°F (12.1°C). The changes in climate mark the approaching winter season, as the last remnants of fall are swept away. Weather in November »Weather in December
December in Middletown marks the return of winter weather with the average lowest temperature dropping to 34°F (1.1°C). A stark difference from the slightly warmer temperatures in November indicates the full-blown onset of winter. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Middletown, 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 (38.7°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
Middletown, 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
Middletown, DE
- Average wind speed in January:
8.8mph - Average wind speed in February:
9mph - Average wind speed in March:
9mph - Average wind speed in April:
8.9mph - 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:
6.2mph - Average wind speed in October:
7.5mph - Average wind speed in November:
7.9mph - Average wind speed in December:
8.2mph
The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Middletown, DE
The months with the highest relative humidity are May, June and September (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Middletown, DE
- Average rainfall in January:
1.26" - Average rainfall in February:
1.46" - Average rainfall in March:
1.65" - Average rainfall in April:
1.54" - Average rainfall in May:
1.93" - Average rainfall in June:
1.89"
- Average rainfall in July:
2.44" - Average rainfall in August:
2.72" - Average rainfall in September:
1.46" - Average rainfall in October:
1.57" - Average rainfall in November:
1.3" - Average rainfall in December:
1.93"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days
Middletown, DE
- Average rainfall days in January:
7.4 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
12.8 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.4 days).
Average snowfall
Middletown, DE
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Middletown, DE
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.3 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:
0.3 days - Average snowfall days in December:
2.5 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Middletown, DE
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 12min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 30min - Average sunshine in May:
8h and 36min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days
Middletown, DE
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
15.9 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
15.5 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
13.7 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
14.5 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
18.9 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (13.3 days).
Average UV index
Middletown, 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
Middletown, DE
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Middletown, 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).





