January weather forecast
New Castle, IN

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Weather in January

The month of January in New Castle, Indiana, exhibits a truly wintry character. Even though the city yields to December’s chilling embrace, January takes over as the coldest month with temperatures dipping as low as 20.5°F (-6.4°C) and stretching only as high as 32.2°F (0.1°C). The city's inhabitants prepare for the snowfall, knowing that winter isn't done with them yet. The frosted landscape of January carries a certain charm, turning New Castle into a winter wonderland. Residents bundle up and venture outdoors to enjoy the frosty scenery, despite the persistent cold.

Temperature

January proves to be the coldest month, recording an average maximum temperature of 32.2°F (0.1°C) and a minimum temperature of 20.5°F (-6.4°C).

Humidity

January and December, with an average relative humidity of 83%, are the most humid months.

Rainfall

In New Castle, in January, it is raining for 8.9 days, with typically 2.24" (57mm) of accumulated precipitation. In New Castle, Indiana, during the entire year, the rain falls for 169.4 days and collects up to 31.77" (807mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall in New Castle. Snow falls for 12.8 days and accumulates 3.31" (84mm) of snow.

Daylight

The average length of the day in January in New Castle is 9h and 43min.
On the first day of January in New Castle, sunrise is at 8:02 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:58 pm EST.

Sunshine

With an average of 3.6h of sunshine, January has the least sunshine of the year.

UV index

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
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Frequently asked questions

What are the coldest months in New Castle?

January, marked by an average high-temperature of 32.2°F (0.1°C) and a low-temperature of 20.5°F (-6.4°C), is the coldest month in New Castle.

How cold is January in New Castle?

The high-temperature, in January, in New Castle, records 32.2°F (0.1°C), while the low-temperature is 20.5°F (-6.4°C).

What are the most humid months in New Castle?

January and December, with an average relative humidity of 83%, are most humid months.

What is the average humidity in January in New Castle?

In January, the average relative humidity in New Castle is 83%.

How many days does it rain in January in New Castle?

In January, in New Castle, Indiana, the rain falls for 8.9 days. Throughout January, 2.24" (57mm) of precipitation is accumulated.

What is the snowiest month in New Castle?

January is the month with the most snowfall in New Castle. Snow falls for 12.8 days and accumulates 3.31" (84mm) of snow.

How much does it snow in New Castle in January?

In New Castle, in January, during 12.8 snowfall days, 3.31" (84mm) of snow is typically accumulated.

What is the average length of the day in January in New Castle?

In January, the average day length in New Castle, Indiana, is 9h and 43min.

When is the sunrise / sunset in January in New Castle?

On the first day of January, sunrise is at 8:02 am and sunset at 5:26 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:58 pm EST.

What is the month with the least sunshine in New Castle?

January has the least sunshine of the year in New Castle, with an average of 3.6h of sunshine.

How long on average sun shines in January in New Castle?

In January, the average sunshine duration is 3.6h.

How high is the UV index in January in New Castle?

In January, the average daily maximum UV index in New Castle, Indiana, is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
37.9°F 3.3°C
32.2°F 0.1°C
36.9°F 2.7°C
Average low temperature
27.9°F -2.3°C
20.5°F -6.4°C
24.1°F -4.4°C
Average pressure
30.12" 765mmHg
30.13" 765mmHg
30.1" 765mmHg
Average wind speed
9.6mph 15.4km/h
10.4mph 16.7km/h
10.3mph 16.6km/h
Average max. wind speed
10.2mph 16.4km/h
11.1mph 17.9km/h
10.9mph 17.5km/h
Average wind speed gusts
15.1mph 24.3km/h
16.3mph 26.2km/h
16mph 25.7km/h
Average humidity
83%
83%
82%
Average rainfall
2.28" 58mm
2.24" 57mm
1.85" 47mm
Average rainfall days
10.3
8.9
8.8
Average snowfall
3.27" 83mm
3.31" 84mm
2.87" 73mm
Average snowfall days
9.9
12.8
9.2
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 0min
3h 4min
4h 5min
Average sunshine days
13
11
11.8
Average UV index
1
2
2
Average cloud cover
59%
63%
60%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in January
New Castle, IN

Average temperature in January - New Castle, IN
  • Average high temperature in January: 32.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in January: 20.5°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in January
New Castle, IN

Average pressure in January - New Castle, IN
  • Average pressure in January: 30.13"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
New Castle, IN

Average wind speed in January - New Castle, 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 (6mph).

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Average humidity in January
New Castle, IN

Average humidity in January - New Castle, IN
  • Average humidity in January: 83%

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

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Average rainfall in January
New Castle, IN

Average rainfall in January - New Castle, IN
  • Average rainfall in January: 2.24"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is February (1.85").

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Average rainfall days in January
New Castle, IN

Average rainfall days in January - New Castle, IN
  • Average rainfall days in January: 8.9 days

The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in January
New Castle, IN

Average snowfall in January - New Castle, IN
  • Average snowfall in January: 3.31"

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
New Castle, IN

Average snowfall days in January - New Castle, IN
  • Average snowfall days in January: 12.8 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
New Castle, IN

Average daylight in January / Average sunshine in January - New Castle, 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: 3h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
New Castle, IN

Average sunshine days in January - New Castle, IN
  • Average sunshine days in January: 11 days

The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is May (9.1 days).

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Average UV index in January
New Castle, IN

Average UV index in January - New Castle, IN
  • Average UV index in January: 2

The months with the highest UV index are May, 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 January
New Castle, IN

Average cloud cover in January - New Castle, IN
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in January
New Castle, IN

Average visibility in January - New Castle, IN
  • Average visibility in January: 5mi

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

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New Castle, Indiana, USA

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