December weather forecast
Latham, IL

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Weather in December

The first month of the winter, December, is also an icy month in Latham, Illinois, with temperature in the range of an average high of 38.3°F (3.5°C) and an average low of 27.5°F (-2.5°C).

Temperature

December shows a mild decline in the average high-temperature, falling from November's frosty 49.8°F (9.9°C) to a cold 38.3°F (3.5°C). Latham experiences a mean low-temperature of 27.5°F (-2.5°C) during December.

Humidity

In December, the average relative humidity in Latham, Illinois, is 79%.

Rainfall

December is the month with the least rainfall. Rain falls for 8.3 days and accumulates 1.1" (28mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Latham, in December, during 6.7 snowfall days, 1.02" (26mm) of snow is typically accumulated. In Latham, during the entire year, snow falls for 29.7 days and aggregates up to 7.13" (181mm) of snow.

Daylight

December has the shortest days of the year in Latham, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 6:59 am and sunset at 4:32 pm. On the last day of December, in Latham, sunrise is at 7:18 am and sunset at 4:41 pm CST.

Sunshine

The average sunshine in December in Latham, Illinois, is 4.5h.

UV index

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 2 in December leads to these guidelines:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

How cold does it get in Latham in December?

An average high-temperature, in December, in Latham, is 38.3°F (3.5°C) and the average low-temperature is 27.5°F (-2.5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 87.8°F (31°C).

What is the average humidity in December in Latham?

In December, the average relative humidity is 79%.

What is the driest month in Latham?

December is the month with the least rainfall in Latham. Rain falls for 8.3 days and accumulates 1.1" (28mm) of precipitation.

How much does it rain in Latham in December?

In December, in Latham, the rain falls for 8.3 days. Throughout December, 1.1" (28mm) of precipitation is accumulated.

How much does it snow in Latham in December?

In Latham, in December, during 6.7 snowfall days, 1.02" (26mm) of snow is typically accumulated.

What is the month with the shortest days in Latham?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Latham, Illinois.

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

In December, the average day length in Latham is 9h and 23min.

What time are sunrise and sunset in December in Latham?

On the first day of December, sunrise is at 6:59 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:41 pm CST.

How long on average sun shines in December in Latham?

In December, the average sunshine duration in Latham, Illinois, is 4.5h.

What is the UV index intensity in December in Latham?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Latham, IL

Average temperature in December - Latham, IL
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in December: 27.5°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in December
Latham, IL

Average pressure in December - Latham, IL
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Latham, IL

Average wind speed in December - Latham, IL
  • Average wind speed in December: 9.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity in December
Latham, IL

Average humidity in December - Latham, IL
  • Average humidity in December: 79%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Latham, IL

Average rainfall in December - Latham, IL
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is December (1.1").

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Average rainfall days in December
Latham, IL

Average rainfall days in December - Latham, IL
  • Average rainfall days in December: 8.3 days

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (6.3 days).

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Average snowfall in December
Latham, IL

Average snowfall in December - Latham, IL
  • Average snowfall in December: 1.02"

The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Latham, IL

Average snowfall days in December - Latham, IL
  • Average snowfall days in December: 6.7 days

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Latham, IL

Average daylight in December / Average sunshine in December - Latham, IL
  • 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: 4h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in December
Latham, IL

Average sunshine days in December - Latham, IL
  • Average sunshine days in December: 17.1 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in December
Latham, IL

Average UV index in December - Latham, IL
  • Average UV index in December: 2

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

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Average cloud cover in December
Latham, IL

Average cloud cover in December - Latham, IL
  • Average cloud cover in December: 53

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are June and September (Cloud cover 31).

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Average visibility in December
Latham, IL

Average visibility in December - Latham, IL
  • 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).

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Latham, Illinois, USA

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