December weather forecast
Hockessin, DE

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Weather in December

December, the final month of the year, brings the full vigor of winter to Hockessin, Delaware. The weather is characterized by the cold, with an average high temperature of 43°F (6.1°C). The city is often dressed in a winter wonderland vibe, with the first snowflakes falling and outdoor decorations celebrating the festive season. As the year comes to a close, residents brace for the coldest period, inspiring delight in some and a longing for the warmer days in others. The beautiful array of holiday decorations and the joyous spirit of the season make this winter month truly memorable.

Temperature

Onset of December in Hockessin witnesses a reduction in the average high-temperature, falling from a fresh 52°F (11.1°C) in November to a chilly 43°F (6.1°C). Hockessin's average low-temperature during December nights is observed to be a freezing cold 31.8°F (-0.1°C).

Humidity

The average relative humidity in December in Hockessin is 78%.

Rainfall

In Hockessin, during December, the rain falls for 9.4 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Hockessin, during the entire year, the rain falls for 135 days and collects up to 17.76" (451mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. In Hockessin, in December, snow falls for 2.4 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, in Hockessin, there are 16.6 snowfall days, and 5.47" (139mm) of snow is accumulated.

Daylight

The month with the shortest days in Hockessin is December, with an average of 9h and 24min of daylight.
On the first day of December in Hockessin, Delaware, sunrise is at 7:05 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:48 pm EST.

Sunshine

The average sunshine in December is 5h.

UV index

The months with the lowest UV index in Hockessin are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the maximum UV index of 2 transforms into these recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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Frequently asked questions

How cold is it in Hockessin in December?

In Hockessin, in December, the average high-temperature is 43°F (6.1°C), and the average low-temperature is 31.8°F (-0.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in August is appraised at 89.6°F (32°C).

What is the average humidity in December in Hockessin?

The average relative humidity in December in Hockessin, Delaware, is 78%.

How much does it rain in Hockessin in December?

In Hockessin, in December, during 9.4 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

How many days does it snow in December in Hockessin?

In Hockessin, Delaware, in December, snow falls for 2.4 days, with typically accumulated 0.79" (20mm) of snow.

What is the month with the shortest days in Hockessin?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

What is the average length of the day in December in Hockessin?

In December, the average day length is 9h and 25min.

When is the sunrise / sunset in December in Hockessin?

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:48 pm EST.

How many hours of sunshine does Hockessin have in December?

The average sunshine duration in December is 5h.

When is the lowest UV index in Hockessin?

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

How high is the UV index in December in Hockessin?

In Hockessin, Delaware, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
52°F 11.1°C
43°F 6.1°C
36.9°F 2.7°C
Average low temperature
37.9°F 3.3°C
31.8°F -0.1°C
24.8°F -4°C
Average pressure
30.13" 765mmHg
30.1" 765mmHg
30.09" 764mmHg
Average wind speed
7.6mph 12.2km/h
8.1mph 13km/h
8.6mph 13.8km/h
Average max. wind speed
8.3mph 13.4km/h
8.8mph 14.2km/h
9.3mph 15km/h
Average wind speed gusts
12.4mph 20km/h
13mph 20.9km/h
13.7mph 22km/h
Average humidity
75%
78%
76%
Average rainfall
1.06" 27mm
1.54" 39mm
1.1" 28mm
Average rainfall days
7.4
9.4
6.6
Average snowfall
0.31" 8mm
0.79" 20mm
1.38" 35mm
Average snowfall days
0.7
2.4
5.2
Average daylight
10h 0min
9h 2min
9h 4min
Average sunshine
5h 4min
5h 0min
5h 0min
Average sunshine days
21
19.5
19.8
Average UV index
2
2
2
Average cloud cover
38%
46%
45%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in December
Hockessin, DE

Average temperature in December - Hockessin, DE
  • Average high temperature in December: 43°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 (36.9°F).

  • Average low temperature in December: 31.8°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in December
Hockessin, DE

Average pressure in December - Hockessin, 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).

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Average wind speed in December
Hockessin, DE

Average wind speed in December - Hockessin, DE
  • Average wind speed in December: 8.1mph

The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

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Average humidity in December
Hockessin, DE

Average humidity in December - Hockessin, DE
  • Average humidity in December: 78%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in December
Hockessin, DE

Average rainfall in December - Hockessin, DE
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is November (1.06").

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Average rainfall days in December
Hockessin, DE

Average rainfall days in December - Hockessin, DE
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (6.6 days).

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Average snowfall in December
Hockessin, DE

Average snowfall in December - Hockessin, DE
  • Average snowfall in December: 0.79"

The month with the highest snowfall is March (1.5").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Hockessin, DE

Average snowfall days in December - Hockessin, DE
  • Average snowfall days in December: 2.4 days

The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Hockessin, DE

Average daylight in December / Average sunshine in December - Hockessin, 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 0min

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 48min).

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Average sunshine days in December
Hockessin, DE

Average sunshine days in December - Hockessin, DE
  • Average sunshine days in December: 19.5 days

The month with the most sunshine days is November (21 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in December
Hockessin, DE

Average UV index in December - Hockessin, 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).

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Average cloud cover in December
Hockessin, DE

Average cloud cover in December - Hockessin, DE
  • Average cloud cover in December: 46

The months with the most cloud cover are February, March and May (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in December
Hockessin, DE

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

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

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Hockessin, Delaware, USA

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