December weather forecast
Odessa, DE

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Weather in December

The first month of the winter, December, is still a chilly month in Odessa, Delaware, with an average temperature varying between 34°F (1.1°C) and 45°F (7.2°C).

Temperature

The onset of December entails a subtle temperature shift, as the average high-temperature eases from a cool 53.8°F (12.1°C) in November to a frosty 45°F (7.2°C). During December, the nighttime temperature averages to an icy 34°F (1.1°C).

Humidity

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

Rainfall

In Odessa, in December, during 9 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. 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 Odessa. In Odessa, in December, snow falls for 2.5 days, with typically accumulated 0.35" (9mm) of snow. Throughout the year, there are 14.2 snowfall days, and 5.16" (131mm) of snow is accumulated.

Daylight

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

Sunshine

The average sunshine in December in Odessa, Delaware, is 5.1h.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What are the temperatures in Odessa in December?

December temperatures vary between a high-temperature of 45°F (7.2°C) and a low-temperature of 34°F (1.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 89.6°F (32°C).

What is the average humidity in December in Odessa?

The average relative humidity in December in Odessa is 77%.

How much does it rain in Odessa in December?

In December, in Odessa, the rain falls for 9 days. Throughout December, 1.93" (49mm) of precipitation is accumulated.

How many days does it snow in December in Odessa?

In December, in Odessa, it is snowing for 2.5 days. Throughout December, 0.35" (9mm) of snow is accumulated.

What is the month with the shortest days in Odessa?

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

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

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

When are sunrise and sunset in December in Odessa?

On the first day of December in Odessa, 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.

How many hours of sunshine does Odessa have in December?

The average sunshine duration in December in Odessa is 5.1h.

What are the months with the lowest UV index in Odessa?

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 Odessa?

In December, the average daily maximum UV index in Odessa, Delaware, is 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to UV radiation.
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
Odessa, DE

Average temperature in December - Odessa, 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).

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Average pressure in December
Odessa, DE

Average pressure in December - Odessa, 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
Odessa, DE

Average wind speed in December - Odessa, 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).

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Average humidity in December
Odessa, DE

Average humidity in December - Odessa, 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%).

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Average rainfall in December
Odessa, DE

Average rainfall in December - Odessa, 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").

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Average rainfall days in December
Odessa, DE

Average rainfall days in December - Odessa, 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).

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Average snowfall in December
Odessa, DE

Average snowfall in December - Odessa, 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").

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Average snowfall days in December
Odessa, DE

Average snowfall days in December - Odessa, 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).

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

Average daylight in December / Average sunshine in December - Odessa, 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).

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Average sunshine days in December
Odessa, DE

Average sunshine days in December - Odessa, 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).

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Average UV index in December
Odessa, DE

Average UV index in December - Odessa, 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
Odessa, DE

Average cloud cover in December - Odessa, 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).

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Average visibility in December
Odessa, DE

Average visibility in December - Odessa, 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).

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Odessa, Delaware, USA

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