Delaware weather in December 2025
December
Delaware weather in December 2025
December
Day
8 °C
Night
-1 °C
Sea
9 °C
Precipitation
95 mm
in month
Rainy days
10 days
in month
Daylight
9 hours
average
Sunshine
5 hours
average
Humidity
69 %
Day
8 °C
Night
-1 °C
Sea
9 °C
Precipitation
95 mm
in month
Rainy days
10 days
in month
Daylight
9 hours
average
Sunshine
5 hours
average
Humidity
69 %
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Weather overview and FAQs
Weather overview
In December in Delaware, the average air temperature ranges from 8 °C (47 °F) during the day to -1 °C (31 °F) at night. There are 10 days of rain on average, where the rainfall is 95 mm (3.73 in).
Are there good conditions to visit in Delaware in December?
In December there are not good conditions to visit Delaware. A relatively low temperature of 8 °C (47 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The night temperature of -1 °C (31 °F) is not inviting for evening and night activities except for visiting a bar and having beer or two.
What is the average number of rainy days in Delaware in December?
In Delaware in December, we can expect 10 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.4 days of the week, or in general - 34 % days.
What temperature can I expect during the day in Delaware in December?
In December in Delaware, the average daily temperatures will be 8 °C (47 °F). Be sure to pack warm clothes, including a jacket and a warm sweater. On some days it may occasionally freeze, but with stronger winds, the feeling of cold may increase.
What is the rainfall intensity in December in Delaware?
There is precipitation of 95 mm (3.73 in) in December in Delaware, which means 3 mm (0.13 in) rainfall per day on average.
Is there a dry season in December in Delaware?
No, December is not a dry month in Delaware, expect rain approximately 10 days in a month.
Is December part of the wet season in Delaware?
No, there is no wet season in December in Delaware - you can expect 10 days of rain during the month.
How long is the day (from dawn till dusk) in Delaware in December?
The length of daylight in Delaware in December is 9 hours.
Is Delaware rainier in December than in January?
No, December in Delaware is not a rainier month than January.
Is it freezing in Delaware in December?
It is possible that it will be freezing in Delaware in December, night temperatures will be -1 °C (31 °F) on average.
What is the humidity in December in Delaware?
In Delaware in December, expect humidity around 69 %.
What is the temperature trend in Delaware in December?
During December in Delaware, the day temperatures are decreasing - from 11 °C (52 °F) at the beginning of the month to 7 °C (45 °F) at the end of the month.
How windy is it in Delaware in December?
An average wind scale that can be expected in Delaware in December is 5.
How does the sea temperature evolve during the month in December in Delaware?
Delaware has a decreasing trend of the sea temperature during December - from 11 °C (52 °F) in the first days of the month to 7 °C (45 °F) in the last days of the month.
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