January weather forecast
Castine, OH

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Weather in January

January, the same as December, is an icy winter month in Castine, Ohio, with an average temperature fluctuating between 32.4°F (0.2°C) and 20.3°F (-6.5°C).

Temperature

January, characterized by an average high temperature of 32.4°F (0.2°C) and a low temperature of 20.3°F (-6.5°C), is generally the coldest month.

Humidity

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

Rainfall

In Castine, in January, it is raining for 8.6 days, with typically 2.36" (60mm) of accumulated precipitation. Throughout the year, there are 168.9 rainfall days, and 33.46" (850mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall in Castine is January, when snow falls for 12.6 days and typically aggregates up to 3.74" (95mm) of snow.

Daylight

The average length of the day in January is 9h and 43min.
On the first day of January in Castine, sunrise is at 8:00 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:55 pm EST.

Sunshine

January has the least sunshine of the year, with an average of 3.5h of sunshine.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, the maximum UV index of 2 suggests this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

The coldest temperatures occur during January, when averages reach a peak of 32.4°F (0.2°C) and a low of 20.3°F (-6.5°C).

How cold is January?

The high-temperature during January is 32.4°F (0.2°C) and the low-temperature is 20.3°F (-6.5°C).

What are the most humid months?

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

What is the average humidity in January?

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

How many days does it rain in January?

In Castine, Ohio, during January, the rain falls for 8.6 days and regularly aggregates up to 2.36" (60mm) of precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 12.6 days and accumulates 3.74" (95mm) of snow.

How much does it snow in January?

In Castine, in January, during 12.6 snowfall days, 3.74" (95mm) of snow is typically accumulated.

What is the average length of the day in January?

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

When is the sunrise / sunset in January?

On the first day of January, sunrise is at 8:00 am and sunset at 5:23 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:55 pm EST.

What is the month with the least sunshine?

With an average of 3.5h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Castine?

In January, the average sunshine duration is 3.5h.

What are the months with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health risk 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
Castine, OH

Average temperature in January - Castine, OH
  • Average high temperature in January: 32.4°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in January: 20.3°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average pressure in January
Castine, OH

Average pressure in January - Castine, OH
  • 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
Castine, OH

Average wind speed in January - Castine, OH
  • Average wind speed in January: 10.5mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

Average humidity in January
Castine, OH

Average humidity in January - Castine, OH
  • Average humidity in January: 83%

The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (75%).

Average rainfall in January
Castine, OH

Average rainfall in January - Castine, OH
  • Average rainfall in January: 2.36"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in January
Castine, OH

Average rainfall days in January - Castine, OH
  • Average rainfall days in January: 8.6 days

The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (8.3 days).

Average snowfall in January
Castine, OH

Average snowfall in January - Castine, OH
  • Average snowfall in January: 3.74"

The month with the highest snowfall is January (3.74").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Castine, OH

Average snowfall days in January - Castine, OH
  • Average snowfall days in January: 12.6 days

The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Castine, OH

Average daylight in January / Average sunshine in January - Castine, OH
  • 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 3min

The months with the most sunshine are June and July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in January
Castine, OH

Average sunshine days in January - Castine, OH
  • Average sunshine days in January: 11.3 days

The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in January
Castine, OH

Average UV index in January - Castine, OH
  • 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, October, November and December (UV index 2).

Average cloud cover in January
Castine, OH

Average cloud cover in January - Castine, OH
  • Average cloud cover in January: 64

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in January
Castine, OH

Average visibility in January - Castine, OH
  • 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).

Castine, Ohio, USA

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