December weather forecast
Richvalley, IN

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Weather in December

The first month of the winter, December, is also an icy month in Richvalley, Indiana, with an average temperature varying between 36.5°F (2.5°C) and 26.6°F (-3°C).

Temperature

The onset of December results in a decrease in the average high-temperature, receding from a chilly 47.5°F (8.6°C) in November to a cold 36.5°F (2.5°C). Richvalley records an average low-temperature of 26.6°F (-3°C) throughout the month of December.

Humidity

The months with the highest humidity are January, February, July, August and December, with an average relative humidity of 83%.

Rainfall

In December, the rain falls for 9.3 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. In Richvalley, during the entire year, the rain falls for 157.1 days and collects up to 23.27" (591mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Richvalley, during December, snow falls for 10.1 days and regularly aggregates up to 1.77" (45mm) of snow. Throughout the year, in Richvalley, there are 47.4 snowfall days, and 10.39" (264mm) of snow is accumulated.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year in Richvalley.
On the first day of December in Richvalley, sunrise is at 7:49 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:26 pm EST.

Sunshine

The average sunshine in December is 4.1h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 1 in December translates into these instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

How cold is December in Richvalley?

December temperatures in Richvalley vary between a high-temperature of 36.5°F (2.5°C) and a low-temperature of 26.6°F (-3°C).

What are the most humid months in Richvalley?

The months with the highest humidity in Richvalley are January, February, July, August and December, with an average relative humidity of 83%.

What is the average humidity in December in Richvalley?

In December, the average relative humidity is 83%.

How many days does it rain in December in Richvalley?

In Richvalley, in December, during 9.3 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

How many days does it snow in December in Richvalley?

In Richvalley, Indiana, in December, during 10.1 snowfall days, 1.77" (45mm) of snow is typically accumulated.

What is the month with the shortest days in Richvalley?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Richvalley.

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

In December, the average day length in Richvalley, Indiana, is 9h and 19min.

When is the sunrise / sunset in December in Richvalley?

In December, on the first day of the month, sunrise is at 7:49 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:26 pm EST.

How long on average sun shines in December in Richvalley?

The average sunshine duration in December is 4.1h.

When is the lowest UV index in Richvalley?

With an average maximum UV index of 1, December is the month with the lowest UV index in Richvalley, Indiana.

How high is the UV index in December in Richvalley?

In Richvalley, Indiana, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's 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
Richvalley, IN

Average temperature in December - Richvalley, IN
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in December: 26.6°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure in December
Richvalley, IN

Average pressure in December - Richvalley, IN
  • Average pressure in December: 30.1"Hg

The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Richvalley, IN

Average wind speed in December - Richvalley, IN
  • Average wind speed in December: 9.6mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in December
Richvalley, IN

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

The months with the highest relative humidity are January, February, July, August and December (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in December
Richvalley, IN

Average rainfall in December - Richvalley, IN
  • Average rainfall in December: 1.38"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.22").

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Average rainfall days in December
Richvalley, IN

Average rainfall days in December - Richvalley, IN
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (7 days).

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Average snowfall in December
Richvalley, IN

Average snowfall in December - Richvalley, IN
  • Average snowfall in December: 1.77"

The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Richvalley, IN

Average snowfall days in December - Richvalley, IN
  • Average snowfall days in December: 10.1 days

The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Richvalley, IN
  • 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: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in December
Richvalley, IN

Average sunshine days in December - Richvalley, IN
  • Average sunshine days in December: 13.7 days

The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is May (9.6 days).

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Average UV index in December
Richvalley, IN

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

The months with the highest UV index are June and 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
Richvalley, IN

Average cloud cover in December - Richvalley, IN
  • Average cloud cover in December: 59

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

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Average visibility in December
Richvalley, IN

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

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

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Richvalley, Indiana, USA

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