January weather forecast
Thornton Grove, NY

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Weather in January

January, like December, is another subzero cold winter month in Thornton Grove, New York, with temperature in the range of an average high of 27.9°F (-2.3°C) and an average low of 16.9°F (-8.4°C).

Temperature

In Thornton Grove, the month of January registers the lowest temperatures, averaging 27.9°F (-2.3°C) at the peak and 16.9°F (-8.4°C) at the lowest.

Humidity

In January, the average relative humidity is 87%.

Rainfall

In Thornton Grove, in January, during 7 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Thornton Grove, during the entire year, the rain falls for 137.8 days and collects up to 13.74" (349mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Thornton Grove, in January, during 18.1 snowfall days, 3.35" (85mm) of snow is typically accumulated. Throughout the year, there are 76.2 snowfall days, and 16.93" (430mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 27min.
On the first day of January in Thornton Grove, sunrise is at 7:36 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:16 pm EST.

Sunshine

In Thornton Grove, New York, the average sunshine in January is 2.8h.

UV index

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: In January, a daily UV index of 2 turns into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

Thornton Grove's temperature records reveal January as the coldest month, marked by average highs of 27.9°F (-2.3°C) and lows of 16.9°F (-8.4°C).

How cold is January?

During January, Thornton Grove experiences an average high-temperature of 27.9°F (-2.3°C) and a low-temperature of 16.9°F (-8.4°C).

What is the average humidity in January?

In January, the average relative humidity is 87%.

How many days does it rain in January?

In January, the rain falls for 7 days. Throughout January, 1.02" (26mm) of precipitation is accumulated.

How many days does it snow in January in Thornton Grove?

In January, it is snowing for 18.1 days. Throughout January, 3.35" (85mm) of snow is accumulated.

What is the average length of the day in January?

The average day length in January is 9h and 27min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:36 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:16 pm EST.

How long on average sun shines in January?

In January, the average sunshine duration is 2.8h.

How high is the UV index in January?

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.
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
Thornton Grove, NY

Average temperature in January - Thornton Grove, NY
  • Average high temperature in January: 27.9°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in January: 16.9°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in January
Thornton Grove, NY

Average pressure in January - Thornton Grove, NY
  • Average pressure in January: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Thornton Grove, NY

Average wind speed in January - Thornton Grove, NY
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6mph).

Average humidity in January
Thornton Grove, NY

Average humidity in January - Thornton Grove, NY
  • Average humidity in January: 87%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).

Average rainfall in January
Thornton Grove, NY

Average rainfall in January - Thornton Grove, NY
  • Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is May (1.5").
The driest month (with the least rainfall) is September (0.67").

Average rainfall days in January
Thornton Grove, NY

Average rainfall days in January - Thornton Grove, NY
  • Average rainfall days in January: 7 days

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (6.7 days).

Average snowfall in January
Thornton Grove, NY

Average snowfall in January - Thornton Grove, NY
  • Average snowfall in January: 3.35"

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

Average snowfall days in January
Thornton Grove, NY

Average snowfall days in January - Thornton Grove, NY
  • Average snowfall days in January: 18.1 days

The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Thornton Grove, NY

Average daylight in January / Average sunshine in January - Thornton Grove, NY
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 2h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

Average sunshine days in January
Thornton Grove, NY

Average sunshine days in January - Thornton Grove, NY
  • Average sunshine days in January: 10.2 days

The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is February (7.9 days).

Average UV index in January
Thornton Grove, NY

Average UV index in January - Thornton Grove, NY
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in January
Thornton Grove, NY

Average cloud cover in January - Thornton Grove, NY
  • Average cloud cover in January: 73

The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in January
Thornton Grove, NY

Average visibility in January - Thornton Grove, NY
  • Average visibility in January: 5mi

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

Thornton Grove, New York, USA

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