January weather forecast
Bethlehem, IN

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Weather in January

January, the same as December, is another cold winter month in Bethlehem, Indiana, with an average temperature varying between 25.3°F (-3.7°C) and 38.3°F (3.5°C).

Temperature

Bethlehem's coldest temperatures are experienced in January, with average high temperatures of 38.3°F (3.5°C) and lows of 25.3°F (-3.7°C).

Humidity

In Bethlehem, Indiana, the average relative humidity in January is 79%.

Rainfall

In January, in Bethlehem, the rain falls for 7.8 days. Throughout January, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 147.9 rainfall days, and 23.98" (609mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Bethlehem are January through April, October through December. In January, it is snowing for 7.2 days. Throughout January, 1.22" (31mm) of snow is accumulated. In Bethlehem, Indiana, during the entire year, snow falls for 25.8 days and aggregates up to 6.02" (153mm) of snow.

Daylight

In January, the average length of the day is 9h and 50min.
On the first day of the month, sunrise is at 7:59 am and sunset at 5:31 pm. On the last day of January, sunrise is at 7:48 am and sunset at 6:02 pm EST.

Sunshine

The month with the least sunshine in Bethlehem is January, with an average of 4.2h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A daily maximum UV index of 2 in January translates into the following instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Bethlehem?

In Bethlehem, January registers the lowest temperatures, averaging 38.3°F (3.5°C) at the peak and 25.3°F (-3.7°C) at the lowest.

How cold is it in Bethlehem in January?

January temperatures in Bethlehem, Indiana, vary between a high-temperature of 38.3°F (3.5°C) and a low-temperature of 25.3°F (-3.7°C).

What is the average humidity in January in Bethlehem?

In Bethlehem, Indiana, the average relative humidity in January is 79%.

How much does it rain in Bethlehem in January?

In Bethlehem, in January, it is raining for 7.8 days, with typically 1.61" (41mm) of accumulated precipitation.

How much does it snow in Bethlehem in January?

In Bethlehem, Indiana, in January, snow falls for 7.2 days, with typically accumulated 1.22" (31mm) of snow.

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

In January, the average day length in Bethlehem, Indiana, is 9h and 50min.

When is the sunrise / sunset in January in Bethlehem?

In January, on the first day of the month, sunrise is at 7:59 am and sunset at 5:31 pm. On the last day of the month, in Bethlehem, Indiana, sunrise is at 7:48 am and sunset at 6:02 pm EST.

What is the month with the least sunshine in Bethlehem?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

How many hours of sunshine does Bethlehem have in January?

In Bethlehem, the average sunshine duration in January is 4.2h.

When is the lowest UV index in Bethlehem?

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

What is the UV index intensity in January in Bethlehem?

In Bethlehem, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes 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 January
Bethlehem, IN

Average temperature in January - Bethlehem, IN
  • Average high temperature in January: 38.3°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in January: 25.3°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in January
Bethlehem, IN

Average pressure in January - Bethlehem, IN
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in January
Bethlehem, IN

Average wind speed in January - Bethlehem, IN
  • Average wind speed in January: 8.4mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in January
Bethlehem, IN

Average humidity in January - Bethlehem, IN
  • Average humidity in January: 79%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).

Average rainfall in January
Bethlehem, IN

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

The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in January
Bethlehem, IN

Average rainfall days in January - Bethlehem, IN
  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in January
Bethlehem, IN

Average snowfall in January - Bethlehem, IN
  • Average snowfall in January: 1.22"

The month with the highest snowfall is March (1.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Bethlehem, IN

Average snowfall days in January - Bethlehem, IN
  • Average snowfall days in January: 7.2 days

The month with the highest number of snowfall days is January (7.2 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
Bethlehem, IN

Average daylight in January / Average sunshine in January - Bethlehem, IN
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 4h and 1min

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

Average sunshine days in January
Bethlehem, IN

Average sunshine days in January - Bethlehem, IN
  • Average sunshine days in January: 16.4 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is May (11.9 days).

Average UV index in January
Bethlehem, IN

Average UV index in January - Bethlehem, 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
Bethlehem, IN

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

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in January
Bethlehem, IN

Average visibility in January - Bethlehem, IN
  • Average visibility in January: 5mi

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

Bethlehem, Indiana, USA

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