Climate and monthly weather forecast
Middletown, NJ

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The climate of Middletown

Situated in New Jersey, USA, Middletown enjoys a Humid subtropical climate, with no dry season, consistent with the Köppen climate classification Cfa. Weather patterns in this town fluctuate from moderately cool winters to warmer summers. There is an impressionable consistency in humidity all year, averaging between 73% and 79%. The atmospheric pressure also demonstrates relatively subtle changes, ranging from 29.93in in June to 30.11in in November.

Examining the yearly division of daylight hours, sun abundance is experienced, peaking at 15 hours in June. Conversely, the shortest daylight duration is noticeable in December with 9.3 hours. Visibility plays a critical role in weather analysis with Middletown maintaining approximately 6 miles throughout the year. Nevertheless, wind speeds show variation with a minimum of 7.5 MPH in July and a peak of 11.7 MPH in January.

Analyzing precipitation levels, rainfall occurs throughout the year, varying from 0.63" (16mm) in January to a peak of 1.69" (43mm) in July. The same is discernible in the number of rainfall days, minimum in January at 6.6 days to a maximum of 15.3 days in July. Noteworthy, relative snowfall is moderate with a peak of 0.47" (12mm) in January and December alongside snowfall days with January bookending at 4.7 days.

The best time to visit Middletown

Evaluating the weather data, it becomes apparent that the ideal time to visit Middletown is from May to July. During this period, the temperature rises from an enjoyable 65.5°F (18.6°C) to a warm 81.1°F (27.3°C). Coupled with the longest daylight duration and high number of sunshine hours, the period stands out as optimal.

However, despite the high rainfall levels and number of rainy days, the increase in temperature offers perfect conditions for outdoor activities in the warmer months. Adding to that, the UV index is at its peak during this period, providing ample opportunities for sunbathers.

The worst time to visit Middletown

In contrast, the least favorable period to visit Middletown is between January and February. During these months, mean temperatures hover around 27.9°F (-2.3°C) to 40.3°F (4.6°C). Snowfall constitutes another concern during this time, reaching a peak of 0.47" (12mm) in January and snowfall days averaging around 4.7 days. Coupled with comparatively lower daylight durations and sunshine hours, outdoor activities may be limited during these months.

Spring weather in Middletown

Spring in Middletown extends from March to May, with temperatures making a steady climb from 46.6°F (8.1°C) to 65.5°F (18.6°C). There is a noticeable increase in the length of the day, with daylight hours stretching from 12 hours in March to 14.4 hours in May. Concurrently, rainfall levels rise from 0.79" (20mm) in March peaking at 1.34" (34mm) in May. The UV index also takes an upward turn from 2 to 5, marking the onset of more sun-filled days.

Summer weather in Middletown

The summer season in Middletown starts from June and ends in August with temperatures rising from 74.3°F (23.5°C) in June and peaking at 81.1°F (27.3°C) in July before returning to 80.1°F (26.7°C) in August. Rainfall sees a significant increase, culminating at 1.69" (43mm) in July before slightly dipping to 1.65" (42mm) in August.

Despite the relative high downpour, these are the sunniest months with the longest daylight hours and highest UV index of the year, making the town vibrant and welcoming despite the frequent summer showers.

Autumn weather in Middletown

Autumn in Middletown runs from September to November with temperatures declining from 73.9°F (23.3°C) to 52.2°F (11.2°C). There is a noticeable reduction in daylight hours from 12.5 hours to 10 hours. Rainfall drops sharply from 0.94" (24mm) in September to 0.91" (23mm) in November. The UV index regresses from 5 to 2, signaling the transition into winter.

Winter weather in Middletown

Winter in Middletown runs from December to February. During this time, temperatures fall from 43.9°F (6.6°C) in December to 37.8°F (3.2°C) in January before slightly increasing to 40.3°F (4.6°C) in February. The daylight duration and UV index drop to their lowest in December at 9.3 hours and 2 respectively. Snowfall begins with 0.47" (12mm) in December, declining to 0.24" (6mm) in February. Winter in Middletown is cold, and visitors should adequately prepare for it.

Weather in January

Middletown has a cold start to the year in January. While the temperature does not reach extremes, the minimal sunlight, at an average of 9.7 hours per day, and the high relative humidity of 74% make the weather feel colder than it is. Weather in January »

Weather in February

February endures the chill that began in January. However, a slight increase in temperatures compared to the previous month indicates the slow progression towards spring. The city witnesses days brisk with occasional rain showers, but the amounts are relatively small. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Middletown, New Jersey, with temperature in the range of an average high of 46.6°F (8.1°C) and an average low of 36.1°F (2.3°C). The start of March is characterized by a subtle increase in the average high-temperature, transitioning from a cold 40.3°F (4.6°C) in February to a frosty 46.6°F (8.1°C). Weather in March »

Weather in April

April brings Middletown into full spring swing with a notable jump in temperatures. The warmer days encourage outdoor activities. The lengthening daylight hours and the relative increase in sunshine make the environment inviting. However, the city also observes its highest rainfall for the first half of the year, reaching to 0.94" (24mm). Weather in April »

Weather in May

By May, Middletown experiences a considerable rise in temperatures. Clear skies and extended sunshine hours of approximately 14.4 hours indicate the imminent arrival of summer. The month, however, does not forget rain, accommodating rainfall of about 1.34" (34mm) spread across several days. Weather in May »

Weather in June

The transition from spring to summer is complete by June in Middletown. The advent of summer is marked by long days with approximately 15 daylight hours, making it one of the year's sunniest months. Interestingly, despite the increasing temperatures, June's rainfall amount of 1.26" (32mm) is nearly similar to that of May. Weather in June »

Weather in July

July is the peak of summer in Middletown with the highest average temperatures observed across the year. The humidity merges with the heat, pushing the real feel temperatures even higher. The increased cloud coverage does little to deter the strong sunlight, with an average UV index of 6 indicating strong sun intensity. Weather in July »

Weather in August

Temperatures in August remain consistent with July's summer peak. However, subtle signs of change become perceptible by the month's end. August experiences ample rainfall of about 1.65" (42mm). Although the average daylight slightly decreases, the sun still shines for long hours. Weather in August »

Weather in September

As the city moves into September, Middletown embraces the early twinges of fall. The weather slowly starts to cool down, and reduced humidity makes the warmer days more enjoyable. Rainfall drops to 0.94" (24mm), matching April's rainfall levels. Weather in September »

Weather in October

October brings Middletown fully into the fall season. The transition from the warmer months is evident with the falling temperatures. However, it is the striking change in the landscape that spells the arrival of autumn. The rainfall slightly increases to 1.02" (26mm) but the reduction in humidity and the falling temperatures transform the city into a typical fall setting. Weather in October »

Weather in November

November stands at the threshold of winter in Middletown. A sharp drop in temperatures heralds the imminent winter chill. The first trace of winter snow, approximately 0.04" (1mm), appears in November. However, the average rainfall reduces to 0.91" (23mm) as the focus shifts to colder days and longer nights. Weather in November »

Weather in December

In December, Middletown settles firmly into the winter season. The chilly winds and reduced daylight hours of roughly 9.3 hours set the tone for this month. Cold temperatures pervade the air, yet there is a certain appeal in the frosty charm of the city. Weather in December »
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Middletown's coldest month, January, generally records average temperatures ranging from a high of 37.8°F (3.2°C) to a low of 27.9°F (-2.3°C).

What is the driest month?

The month with the least rainfall in Middletown is January, when the rain falls for 6.6 days and typically collects 0.63" (16mm) of precipitation.

How many days does it rain?

Throughout the year, there are 127 rainfall days, and 12.99" (330mm) of precipitation is accumulated.

When does it snow?

January through March, October through December are months with snowfall.

When does it snow the most?

The months with the most snowfall are January and December, with an average 0.47" (12mm) of accumulated snow.

How many days does it snow?

Throughout the year, there are 15.7 snowfall days, and 1.61" (41mm) of snow is accumulated.

What are the months with the lowest UV index?

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.

What is the month with the least sunshine?

With an average of 4.8h 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?

In Middletown, snow does not fall in April through September.

What is the most humid month?

May is the most humid month, with an average relative humidity of 79%.

When are the longest days?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What is the month with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What part of the year is the hottest?

July, recording an average high temperature of 81.1°F (27.3°C) and a low temperature of 70.5°F (21.4°C), is Middletown's warmest month.

What is the rainiest month?

The month with the most rainfall in Middletown is July, when the rain falls for 15.3 days and typically aggregates up to 1.69" (43mm) of precipitation.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.8h of sunshine.

What is the least humid month?

The least humid month is November, with an average relative humidity of 73%.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

Average temperature
Middletown, NJ

Average temperature - Middletown, NJ

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (37.8°F).

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).

Average pressure
Middletown, NJ

Average pressure - Middletown, NJ

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Middletown, NJ

Average wind speed - Middletown, NJ

The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

Average humidity
Middletown, NJ

Average humidity - Middletown, NJ

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is November (73%).

Average rainfall
Middletown, NJ

Average rainfall - Middletown, NJ

The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is January (0.63").

Average rainfall days
Middletown, NJ

Average rainfall days - Middletown, NJ

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (6.6 days).

Average snowfall
Middletown, NJ

Average snowfall - Middletown, NJ

The months with the highest snowfall are January and December (0.47").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days
Middletown, NJ

Average snowfall days - Middletown, NJ

The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Middletown, NJ

Average daylight / Average sunshine - Middletown, NJ

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days
Middletown, NJ

Average sunshine days - Middletown, NJ

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.2 days).

Average UV index
Middletown, NJ

Average UV index - Middletown, NJ

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average visibility
Middletown, NJ

Average visibility - Middletown, NJ

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).

Middletown, New Jersey, USA

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