December weather forecast
Middletown, DE

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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. The early signs of snowfall reappear with an average of 0.35" (9mm), painting the cityscape with a white hue. This wintry month brings ample holiday cheer despite the shortened daylight hours and dropping temperatures. With most days being cloudy, Middletown in December offers a classic winter wonderland experience.

Temperature

The commencement of December indicates a gentle shift in the average high-temperature, receding from November's fresh 53.8°F (12.1°C) to a frosty 45°F (7.2°C). During December, Middletown experiences an average low-temperature of 34°F (1.1°C) at night.

Humidity

In Middletown, the average relative humidity in December is 77%.

Rainfall

In Middletown, in December, it is raining for 9 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 134.6 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall. In Middletown, in December, snow falls for 2.5 days, with typically accumulated 0.35" (9mm) of snow. In Middletown, during the entire year, snow falls for 14.2 days and aggregates up to 5.16" (131mm) of snow.

Daylight

With an average of 9h and 24min of daylight, December has the shortest days of the year.
On the first day of December in Middletown, sunrise is at 7:04 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:49 pm EST.

Sunshine

The average sunshine in December is 5.1h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 2 during December translates into the following recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.

Frequently asked questions

What is the average December temperature?

The high-temperature, in December, in Middletown, is 45°F (7.2°C), while the low-temperature averages to 34°F (1.1°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 89.6°F (32°C).

What is the average humidity in December?

In December, the average relative humidity is 77%.

How much does it rain in December?

In Middletown, in December, during 9 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

How much does it snow in Middletown in December?

In Middletown, in December, during 2.5 snowfall days, 0.35" (9mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

How many hours of daylight does Middletown have in December?

In Middletown, the average day length in December is 9h and 26min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:04 am and sunset at 4:39 pm. On the last day of the month, in Middletown, sunrise is at 7:22 am and sunset at 4:49 pm EST.

How long on average sun shines in December in Middletown?

The average sunshine duration in December is 5.1h.

When is the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index in Middletown, Delaware, is 2. A UV Index estimate of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Middletown, DE

Average temperature in December - Middletown, DE
  • Average high temperature in December: 45°F

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).

  • Average low temperature in December: 34°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 in December
Middletown, DE

Average pressure in December - Middletown, DE
  • 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 in December
Middletown, DE

Average wind speed in December - Middletown, DE
  • 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 in December
Middletown, DE

Average humidity in December - Middletown, DE
  • Average humidity in December: 77%

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 in December
Middletown, DE

Average rainfall in December - Middletown, DE
  • 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 in December
Middletown, DE

Average rainfall days in December - Middletown, DE
  • 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 in December
Middletown, DE

Average snowfall in December - Middletown, DE
  • Average snowfall in December: 0.35"

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 in December
Middletown, DE

Average snowfall days in December - Middletown, DE
  • 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 in December /
Average sunshine in December
Middletown, DE

Average daylight in December / Average sunshine in December - Middletown, DE
  • 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 December: 5h and 1min

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 in December
Middletown, DE

Average sunshine days in December - Middletown, DE
  • 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 in December
Middletown, DE

Average UV index in December - Middletown, DE
  • Average UV index in December: 2

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 in December
Middletown, DE

Average cloud cover in December - Middletown, DE
  • Average cloud cover in December: 45

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 in December
Middletown, DE

Average visibility in December - Middletown, DE
  • Average visibility in December: 6mi

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, Delaware, USA

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