January weather forecast
Foster, IN

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Weather in January

January, like December, is another subzero cold winter month in Foster, Indiana, with an average temperature varying between 31.6°F (-0.2°C) and 20.5°F (-6.4°C).

Temperature

The coldest period is January, when temperatures fluctuate between an average high of 31.6°F (-0.2°C) and a low of 20.5°F (-6.4°C).

Humidity

In Foster, the average relative humidity in January is 81%.

Rainfall

In Foster, Indiana, during January, the rain falls for 7.3 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, in Foster, there are 151.8 rainfall days, and 25.63" (651mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Foster. In Foster, in January, snow falls for 10.6 days, with typically accumulated 2.28" (58mm) of snow. In Foster, during the entire year, snow falls for 35.2 days and aggregates up to 8.82" (224mm) of snow.

Daylight

In January, the average length of the day is 9h and 42min.
On the first day of the month, sunrise is at 8:12 am and sunset at 5:34 pm. On the last day of January, in Foster, Indiana, sunrise is at 7:59 am and sunset at 6:06 pm EST.

Sunshine

January has the least sunshine of the year in Foster, with an average of 4h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In January, a regular UV index of 2 translates into these guidelines:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Foster?

January is the month when Foster, Indiana, sees the average lowest temperatures, with a high of 31.6°F (-0.2°C) and a low of 20.5°F (-6.4°C).

How cold is it in Foster in January?

January temperatures vary between a high-temperature of 31.6°F (-0.2°C) and a low-temperature of 20.5°F (-6.4°C).

What is the average humidity in January in Foster?

In January, the average relative humidity is 81%.

How many days does it rain in January in Foster?

In Foster, Indiana, in January, it is raining for 7.3 days, with typically 1.61" (41mm) of accumulated precipitation.

How many days does it snow in January in Foster?

In January, in Foster, it is snowing for 10.6 days. Throughout January, 2.28" (58mm) of snow is accumulated.

What is the average length of the day in January in Foster?

In Foster, the average day length in January is 9h and 42min.

What time are sunrise and sunset in January in Foster?

In January, on the first day of the month, sunrise is at 8:12 am and sunset at 5:34 pm. On the last day of the month, in Foster, sunrise is at 7:59 am and sunset at 6:06 pm EST.

What is the month with the least sunshine in Foster?

With an average of 4h of sunshine, January has the least sunshine of the year in Foster.

How long on average sun shines in January in Foster?

In Foster, the average sunshine duration in January is 4h.

What are the months with the lowest UV index in Foster?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in January in Foster?

In January, the average daily maximum UV index in Foster, Indiana, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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 January
Foster, IN

Average temperature in January - Foster, IN
  • Average high temperature in January: 31.6°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in January: 20.5°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

Average pressure in January
Foster, IN

Average pressure in January - Foster, IN
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Foster, IN

Average wind speed in January - Foster, IN
  • Average wind speed in January: 10.4mph

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 January
Foster, IN

Average humidity in January - Foster, IN
  • Average humidity in January: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in January
Foster, IN

Average rainfall in January - Foster, IN
  • Average rainfall in January: 1.61"

The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").

Average rainfall days in January
Foster, IN

Average rainfall days in January - Foster, IN
  • Average rainfall days in January: 7.3 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in January
Foster, IN

Average snowfall in January - Foster, IN
  • Average snowfall in January: 2.28"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Foster, IN

Average snowfall days in January - Foster, IN
  • Average snowfall days in January: 10.6 days

The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Foster, IN

Average daylight in January / Average sunshine in January - Foster, IN
  • Average daylight in January: 9h and 4min

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 January: 4h and 0min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in January
Foster, IN

Average sunshine days in January - Foster, IN
  • Average sunshine days in January: 15 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).

Average UV index in January
Foster, IN

Average UV index in January - Foster, IN
  • Average UV index in January: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in January
Foster, IN

Average cloud cover in January - Foster, IN
  • Average cloud cover in January: 58

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).

Average visibility in January
Foster, IN

Average visibility in January - Foster, IN
  • Average visibility in January: 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).

Foster, Indiana, USA

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