December weather forecast
Lynn, IN

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Weather in December

December, the first month of the winter in Lynn, is still a cold month, with an average temperature ranging between max 37.4°F (3°C) and min 27.5°F (-2.5°C).

Temperature

December comes with a drop in the average high-temperature, falling from November's chilly 48.4°F (9.1°C) to a wintry 37.4°F (3°C). The average low-temperature of 27.5°F (-2.5°C) is witnessed during December.

Humidity

In Lynn, the average relative humidity in December is 83%.

Rainfall

In December, the rain falls for 9.9 days. Throughout December, 2.28" (58mm) of precipitation is accumulated. Throughout the year, in Lynn, there are 169.7 rainfall days, and 31.65" (804mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall in Lynn is December, when snow falls for 10.2 days and typically aggregates up to 3.78" (96mm) of snow.

Daylight

December has the shortest days of the year in Lynn, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:43 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:24 pm EST.

Sunshine

The average sunshine in December in Lynn, Indiana, is 3.9h.

UV index

December is the month with the lowest UV index in Lynn, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 1 during December translates into the following directions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

How cold is it in Lynn in December?

The high-temperature in Lynn, Indiana, during December is 37.4°F (3°C) and the low-temperature is 27.5°F (-2.5°C).

What is the average humidity in December in Lynn?

In December, the average relative humidity in Lynn is 83%.

How many days does it rain in December in Lynn?

In Lynn, Indiana, in December, during 9.9 rainfall days, 2.28" (58mm) of precipitation is typically accumulated.

When does it snow the most in Lynn?

December is the month with the most snowfall in Lynn, Indiana. Snow falls for 10.2 days and accumulates 3.78" (96mm) of snow.

How much does it snow in Lynn in December?

In December, in Lynn, Indiana, it is snowing for 10.2 days. Throughout December, 3.78" (96mm) of snow is accumulated.

What is the month with the shortest days in Lynn?

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

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

The average day length in December in Lynn, Indiana, is 9h and 23min.

When is the sunrise / sunset in December in Lynn?

On the first day of December in Lynn, Indiana, sunrise is at 7:43 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:24 pm EST.

How many hours of sunshine does Lynn have in December?

The average sunshine duration in December in Lynn, Indiana, is 3.9h.

When is the lowest UV index in Lynn?

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

What is the UV index reading in December in Lynn?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
Average high temperature
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
Lynn, IN

Average temperature in December - Lynn, IN
  • Average high temperature in December: 37.4°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

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Average pressure in December
Lynn, IN

Average pressure in December - Lynn, IN
  • Average pressure in December: 30.11"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Lynn, IN

Average wind speed in December - Lynn, IN
  • Average wind speed in December: 9.9mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).

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Average humidity in December
Lynn, IN

Average humidity in December - Lynn, IN
  • Average humidity in December: 83%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in December
Lynn, IN

Average rainfall in December - Lynn, IN
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is May (3.86").
The driest month (with the least rainfall) is February (1.93").

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Average rainfall days in December
Lynn, IN

Average rainfall days in December - Lynn, IN
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (19.9 days).
The months with the least rainy days are January and February (9 days).

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Average snowfall in December
Lynn, IN

Average snowfall in December - Lynn, IN
  • Average snowfall in December: 3.78"

The month with the highest snowfall is December (3.78").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Lynn, IN

Average snowfall days in December - Lynn, IN
  • Average snowfall days in December: 10.2 days

The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Lynn, IN

Average daylight in December / Average sunshine in December - Lynn, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in December
Lynn, IN

Average sunshine days in December - Lynn, IN
  • Average sunshine days in December: 11.8 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is May (8.7 days).

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Average UV index in December
Lynn, IN

Average UV index in December - Lynn, IN
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in December
Lynn, IN

Average cloud cover in December - Lynn, IN
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in December
Lynn, IN

Average visibility in December - Lynn, IN
  • Average visibility in December: 6mi

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

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Lynn, Indiana, USA

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