December weather forecast
San Pierre, IN

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Weather in December

The first month of the winter, December, is also an icy month in San Pierre, Indiana, with an average temperature varying between 27°F (-2.8°C) and 36°F (2.2°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 a wintry 36°F (2.2°C). Nighttime, during December, brings an average low of 27°F (-2.8°C), a modest reduction from the day's peak.

Humidity

In San Pierre, the average relative humidity in December is 82%.

Rainfall

In December, in San Pierre, the rain falls for 9.4 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 156.1 rainfall days, and 22.44" (570mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In San Pierre, during December, snow falls for 10 days and regularly aggregates up to 2.05" (52mm) of snow. Throughout the year, there are 46.9 snowfall days, and 11.89" (302mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of the month, sunrise is at 6:54 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:12 am and sunset at 4:28 pm CST.

Sunshine

The average sunshine in December is 4h.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In December, the maximum UV index of 1 suggests this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

In December, the average high-temperature and low-temperature are 36°F (2.2°C) and 27°F (-2.8°C) respectively.

What is the average humidity in December in San Pierre?

In San Pierre, the average relative humidity in December is 82%.

How much does it rain in December?

In San Pierre, in December, during 9.4 rainfall days, 1.18" (30mm) of precipitation is typically accumulated.

How much does it snow in December?

In December, in San Pierre, it is snowing for 10 days. Throughout December, 2.05" (52mm) of snow is accumulated.

What is the month with the shortest days?

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

What is the average length of the day in December?

In San Pierre, the average day length in December is 9h and 16min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:54 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:28 pm CST.

How long on average sun shines in December?

In December, the average sunshine duration is 4h.

When is the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index reading in December in San Pierre?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
San Pierre, IN

Average temperature in December - San Pierre, IN
  • Average high temperature in December: 36°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°F).

  • Average low temperature in December: 27°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 (18.7°F).

Average pressure in December
San Pierre, IN

Average pressure in December - San Pierre, 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).

Average wind speed in December
San Pierre, IN

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in December
San Pierre, IN

Average humidity in December - San Pierre, IN
  • Average humidity in December: 82%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
San Pierre, IN

Average rainfall in December - San Pierre, IN
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in December
San Pierre, IN

Average rainfall days in December - San Pierre, IN
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in December
San Pierre, IN

Average snowfall in December - San Pierre, IN
  • Average snowfall in December: 2.05"

The month with the highest snowfall is February (3.23").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
San Pierre, IN

Average snowfall days in December - San Pierre, IN
  • Average snowfall days in December: 10 days

The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
San Pierre, IN

Average daylight in December / Average sunshine in December - San Pierre, 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 0min

The months with the most sunshine are June and July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in December
San Pierre, IN

Average sunshine days in December - San Pierre, IN
  • Average sunshine days in December: 14.1 days

The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (9.8 days).

Average UV index in December
San Pierre, IN

Average UV index in December - San Pierre, IN
  • Average UV index in December: 1

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

Average cloud cover in December
San Pierre, IN

Average cloud cover in December - San Pierre, IN
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in December
San Pierre, IN

Average visibility in December - San Pierre, IN
  • Average visibility in December: 6mi

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

San Pierre, Indiana, USA

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