December weather forecast
Defiance, OH

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Weather in December

The first month of the winter, December, is still a cold month in Defiance, Ohio, with an average temperature varying between 27.1°F (-2.7°C) and 36.1°F (2.3°C).

Temperature

December brings a minor decrease, with the average high-temperature reducing from a frosty 47.1°F (8.4°C) in November to an icy 36.1°F (2.3°C). A minimal decline in temperature from daytime highs is anticipated throughout the December nights, averaging a subzero cold 27.1°F (-2.7°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

December is the month with the least rainfall. Rain falls for 10 days and accumulates 1.54" (39mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall in Defiance. In December, in Defiance, it is snowing for 10.6 days. Throughout December, 2.4" (61mm) of snow is accumulated. In Defiance, during the entire year, snow falls for 45.7 days and aggregates up to 13.74" (349mm) of snow.

Daylight

December has the shortest days of the year in Defiance, with an average of 9h and 18min of daylight.
On the first day of December in Defiance, sunrise is at 7:44 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:18 pm EST.

Sunshine

In Defiance, the average sunshine in December is 3.8h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: In December, a regular UV index of 1 translates into these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Defiance?

December temperatures vary between a high-temperature of 36.1°F (2.3°C) and a low-temperature of 27.1°F (-2.7°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 86°F (30°C).

What is the average humidity in December in Defiance?

The average relative humidity in December in Defiance, Ohio, is 83%.

What is the driest month in Defiance?

December is the month with the least rainfall in Defiance. Rain falls for 10 days and accumulates 1.54" (39mm) of precipitation.

How much does it rain in Defiance in December?

In Defiance, Ohio, during December, the rain falls for 10 days and regularly aggregates up to 1.54" (39mm) of precipitation.

How much does it snow in Defiance in December?

In Defiance, Ohio, in December, during 10.6 snowfall days, 2.4" (61mm) of snow is typically accumulated.

What is the month with the shortest days in Defiance?

December has the shortest days of the year in Defiance, Ohio, with an average of 9h and 18min of daylight.

How many hours of daylight does Defiance have in December?

In December, the average day length in Defiance, Ohio, is 9h and 16min.

When is the sunrise / sunset in December in Defiance?

In December, on the first day of the month, sunrise is at 7:44 am and sunset at 5:09 pm. On the last day of the month, in Defiance, sunrise is at 8:03 am and sunset at 5:18 pm EST.

How long on average sun shines in December in Defiance?

In Defiance, the average sunshine duration in December is 3.8h.

What is the month with the lowest UV index in Defiance?

December is the month with the lowest UV index in Defiance, Ohio, with an average maximum UV index of 1.

How high is the UV index in December in Defiance?

In Defiance, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health threat from 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
Defiance, OH

Average temperature in December - Defiance, OH
  • Average high temperature in December: 36.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in December
Defiance, OH

Average pressure in December - Defiance, OH
  • Average pressure in December: 30.1"Hg

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 in December
Defiance, OH

Average wind speed in December - Defiance, OH
  • Average wind speed in December: 9.4mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in December
Defiance, OH

Average humidity in December - Defiance, OH
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Defiance, OH

Average rainfall in December - Defiance, OH
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is December (1.54").

Average rainfall days in December
Defiance, OH

Average rainfall days in December - Defiance, OH
  • Average rainfall days in December: 10 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (8.3 days).

Average snowfall in December
Defiance, OH

Average snowfall in December - Defiance, OH
  • Average snowfall in December: 2.4"

The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in December
Defiance, OH

Average snowfall days in December - Defiance, OH
  • Average snowfall days in December: 10.6 days

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Defiance, OH

Average daylight in December / Average sunshine in December - Defiance, OH
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in December
Defiance, OH

Average sunshine days in December - Defiance, OH
  • Average sunshine days in December: 12.1 days

The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in December
Defiance, OH

Average UV index in December - Defiance, OH
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Defiance, OH

Average cloud cover in December - Defiance, OH
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Defiance, OH

Average visibility in December - Defiance, OH
  • Average visibility in December: 6mi

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

Defiance, Ohio, USA

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