January weather forecast
Rosston, IN

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Weather in January

January, the same as December, is another cold winter month in Rosston, Indiana, with an average temperature fluctuating between 32.2°F (0.1°C) and 20.3°F (-6.5°C).

Temperature

Rosston notes the coldest temperatures in January, with a high average of 32.2°F (0.1°C) and a low of 20.3°F (-6.5°C).

Humidity

In Rosston, the average relative humidity in January is 82%.

Rainfall

In January, in Rosston, the rain falls for 5.9 days. Throughout January, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 121.7 rainfall days, and 11.69" (297mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 7.3 days and typically aggregates up to 1.06" (27mm) of snow.

Daylight

The average length of the day in January is 9h and 43min.
On the first day of the month, sunrise is at 8:07 am and sunset at 5:30 pm. On the last day of January, sunrise is at 7:54 am and sunset at 6:02 pm EST.

Sunshine

With an average of 3.9h of sunshine, January has the least sunshine of the year.

UV index

In Rosston, Indiana, the average daily maximum UV index in January is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In January, the maximum UV index of 2 transforms into these recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January, recording an average high temperature of 32.2°F (0.1°C) and a low temperature of 20.3°F (-6.5°C), is Rosston's coldest month.

How cold is January?

The high-temperature, in January, in Rosston, records 32.2°F (0.1°C), while the low-temperature is 20.3°F (-6.5°C).

What is the average humidity in January?

In Rosston, the average relative humidity in January is 82%.

How many days does it rain in January?

In Rosston, in January, during 5.9 rainfall days, 0.79" (20mm) of precipitation is typically accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 7.3 days and accumulates 1.06" (27mm) of snow.

How much does it snow in January?

In January, in Rosston, it is snowing for 7.3 days. Throughout January, 1.06" (27mm) of snow is accumulated.

What is the average length of the day in January?

The average day length in January is 9h and 43min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 8:07 am and sunset at 5:30 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 6:02 pm EST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 3.9h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 3.9h.

How high is the UV index in January?

In Rosston, the average daily maximum UV index in January is 2. A UV Index reading 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 January
Rosston, IN

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

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in January: 20.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in January
Rosston, IN

Average pressure in January - Rosston, 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).

Average wind speed in January
Rosston, IN

Average wind speed in January - Rosston, IN
  • Average wind speed in January: 10.1mph

The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in January
Rosston, IN

Average humidity in January - Rosston, IN
  • Average humidity in January: 82%

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

Average rainfall in January
Rosston, IN

Average rainfall in January - Rosston, IN
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.67").

Average rainfall days in January
Rosston, IN

Average rainfall days in January - Rosston, IN
  • Average rainfall days in January: 5.9 days

The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in January
Rosston, IN

Average snowfall in January - Rosston, IN
  • Average snowfall in January: 1.06"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Rosston, IN

Average snowfall days in January - Rosston, IN
  • Average snowfall days in January: 7.3 days

The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Rosston, 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 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in January
Rosston, IN

Average sunshine days in January - Rosston, IN
  • Average sunshine days in January: 19 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is May (11.8 days).

Average UV index in January
Rosston, IN

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

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 January
Rosston, IN

Average cloud cover in January - Rosston, IN
  • Average cloud cover in January: 61

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in January
Rosston, IN

Average visibility in January - Rosston, IN
  • Average visibility in January: 6mi

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

Rosston, Indiana, USA

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