December weather forecast
Sleeth, IN

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Weather in December

December, the first month of the winter in Sleeth, is also a wintry month, with an average temperature ranging between max 37°F (2.8°C) and min 27.1°F (-2.7°C).

Temperature

The arrival of December signals a shift in temperature, down from a chilly 48.2°F (9°C) in November to an icy 37°F (2.8°C). During December, Sleeth consistently records a temperature low averaging a freezing cold 27.1°F (-2.7°C).

Humidity

In December, the average relative humidity is 82%.

Rainfall

December is the month with the least rainfall. Rain falls for 8.6 days and accumulates 1.18" (30mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Sleeth, Indiana, in December, during 7.2 snowfall days, 1.46" (37mm) of snow is typically accumulated. In Sleeth, during the entire year, snow falls for 37.1 days and aggregates up to 8.15" (207mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of December in Sleeth, sunrise is at 7:52 am and sunset at 5:20 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 5:29 pm EST.

Sunshine

The average sunshine in December is 4.2h.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 1 in December translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.

Frequently asked questions

How cold is December?

The high-temperature, in December, in Sleeth, records 37°F (2.8°C), while the low-temperature is 27.1°F (-2.7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in July is calculated to be 87.8°F (31°C).

What is the average humidity in December?

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

What is the driest month?

December is the month with the least rainfall. Rain falls for 8.6 days and accumulates 1.18" (30mm) of precipitation.

How many days does it rain in December?

In Sleeth, in December, it is raining for 8.6 days, with typically 1.18" (30mm) of accumulated precipitation.

How much does it snow in Sleeth in December?

In December, it is snowing for 7.2 days. Throughout December, 1.46" (37mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days in Sleeth is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Sleeth have in December?

The average day length in December is 9h and 19min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:52 am and sunset at 5:20 pm. On the last day of the month, in Sleeth, sunrise is at 8:10 am and sunset at 5:29 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 4.2h.

When is the lowest UV index?

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

How high is the UV index in December?

In Sleeth, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability 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
Sleeth, IN

Average temperature in December - Sleeth, IN
  • Average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

Average pressure in December
Sleeth, IN

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

The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Sleeth, IN

Average wind speed in December - Sleeth, IN
  • Average wind speed in December: 9.5mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in December
Sleeth, IN

Average humidity in December - Sleeth, 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 (72%).

Average rainfall in December
Sleeth, IN

Average rainfall in December - Sleeth, IN
  • Average rainfall in December: 1.18"

The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.18").

Average rainfall days in December
Sleeth, IN

Average rainfall days in December - Sleeth, IN
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6 days).

Average snowfall in December
Sleeth, IN

Average snowfall in December - Sleeth, IN
  • Average snowfall in December: 1.46"

The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Sleeth, IN

Average snowfall days in December - Sleeth, IN
  • Average snowfall days in December: 7.2 days

The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Sleeth, 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 18min).

  • Average sunshine in December: 4h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in December
Sleeth, IN

Average sunshine days in December - Sleeth, IN
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in December
Sleeth, IN

Average UV index in December - Sleeth, 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).

Average cloud cover in December
Sleeth, IN

Average cloud cover in December - Sleeth, IN
  • Average cloud cover in December: 57

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June and August (Cloud cover 33).

Average visibility in December
Sleeth, IN

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

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

Sleeth, Indiana, USA

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