December weather forecast and climate
Defiance, OH

The first month of the winter, December, is also a wintry month in Defiance, Ohio, with average temperature ranging between min 27.1°F (-2.7°C) and max 36.1°F (2.3°C).

Temperature

In December, the average high-temperature drops, from a frosty 47.1°F (8.4°C) in November, to a wintry 36.1°F (2.3°C). The average low-temperature, in December, is 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, snow falls for 10.6 days, with typically accumulated 2.4" (61mm) of snow. Throughout the year, in Defiance, Ohio, there are 45.7 snowfall days, and 13.74" (349mm) of snow is accumulated.

Daylight

The month with the shortest days in Defiance, Ohio, is December, with an average of 9.3h of daylight.

Sunshine

In December, the average sunshine is 3.8h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index in Defiance. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 1 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Defiance?

The average high-temperature, in December, in Defiance, Ohio, is 36.1°F (2.3°C), while the average low-temperature is 27.1°F (-2.7°C).

What is the average humidity in December in Defiance?

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

How much does it rain in Defiance in December?

In Defiance, in December, it is raining for 10 days, with typically 1.54" (39mm) of accumulated precipitation.

What is the driest month in Defiance?

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

How much does it snow in Defiance in December?

In Defiance, Ohio, during December, snow falls for 10.6 days and regularly aggregates up to 2.4" (61mm) of snow.

What is the month with the shortest days in Defiance?

The month with the shortest days is December, with an average of 9.3h of daylight.

How many hours of daylight does Defiance have in December?

In December, the average length of the day in Defiance is 9.3h.

How long on average sun shines in December in Defiance?

The average sunshine in December is 3.8h.

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

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

How high is the UV index in December in Defiance?

The average daily maximum UV index in December in Defiance is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in December - Defiance, OH
  • Average high temperature in December: 2.3°C

The warmest month (with the highest average high temperature) is July (27.2°C).
The month with the lowest average high temperature is January (-1°C).

  • Average low temperature in December: -2.7°C

The month with the highest average low temperature is July (17.6°C).
The coldest month (with the lowest average low temperature) is January (-7.2°C).

Average pressure in December - Defiance, OH
  • Average pressure in December: 1019.2mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

Average wind speed in December - Defiance, OH
  • Average wind speed in December: 15.1km/h

The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).

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

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: 39mm

The wettest month (with the highest rainfall) is April (85mm).
The driest month (with the least rainfall) is December (39mm).

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: 61mm

The month with the highest snowfall is January (97mm).
Months with the least snowfall are June, July, August, September and October (0mm).

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).
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: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 3.8h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 3.4h).

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: 1

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: 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: 9km

Months with the highest visibility are February, March, April, May, June, July, October, November and December (9km).
Months with the lowest visibility are January, August and September (8km).