January weather forecast
South Deerfield, MA

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Weather in January

January, like December, is a freezing cold winter month in South Deerfield, Massachusetts, with an average temperature fluctuating between 29.7°F (-1.3°C) and 17.1°F (-8.3°C).

Temperature

In South Deerfield, the month of January registers the lowest temperatures, averaging 29.7°F (-1.3°C) at the peak and 17.1°F (-8.3°C) at the lowest.

Humidity

In January, the average relative humidity is 81%.

Rainfall

In South Deerfield, in January, during 9.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 147.7 rainfall days, and 28.9" (734mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In South Deerfield, in January, during 10 snowfall days, 5.47" (139mm) of snow is typically accumulated. Throughout the year, in South Deerfield, Massachusetts, there are 38.7 snowfall days, and 23.07" (586mm) of snow is accumulated.

Daylight

In South Deerfield, the average length of the day in January is 9h and 29min.
On the first day of the month, sunrise is at 7:19 am and sunset at 4:27 pm. On the last day of January, sunrise is at 7:05 am and sunset at 5:02 pm EST.

Sunshine

In South Deerfield, the average sunshine in January is 5h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.

Frequently asked questions

What time of the year is the coldest?

January is the coldest month, with the temperature often reaching an average high of 29.7°F (-1.3°C) and an average low of 17.1°F (-8.3°C).

How cold is January?

In South Deerfield, in January, the average high-temperature is 29.7°F (-1.3°C), and the average low-temperature is 17.1°F (-8.3°C).

What is the average humidity in January in South Deerfield?

The average relative humidity in January is 81%.

How many days does it rain in January in South Deerfield?

In South Deerfield, in January, it is raining for 9.1 days, with typically 2.32" (59mm) of accumulated precipitation.

How many days does it snow in January?

In South Deerfield, in January, during 10 snowfall days, 5.47" (139mm) of snow is typically accumulated.

How many hours of daylight does South Deerfield have in January?

The average day length in January in South Deerfield is 9h and 29min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:19 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:02 pm EST.

How many hours of sunshine does South Deerfield have in January?

In January, the average sunshine duration is 5h.

When is the lowest UV index in South Deerfield?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
South Deerfield, MA

Average temperature in January - South Deerfield, MA
  • Average high temperature in January: 29.7°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in January: 17.1°F

The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in January
South Deerfield, MA

Average pressure in January - South Deerfield, MA
  • Average pressure in January: 30.03"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
South Deerfield, MA

Average wind speed in January - South Deerfield, MA
  • Average wind speed in January: 8.1mph

The windiest months (with the highest average wind speed) are January, February and March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in January
South Deerfield, MA

Average humidity in January - South Deerfield, MA
  • Average humidity in January: 81%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).

Average rainfall in January
South Deerfield, MA

Average rainfall in January - South Deerfield, MA
  • Average rainfall in January: 2.32"

The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is September (1.69").

Average rainfall days in January
South Deerfield, MA

Average rainfall days in January - South Deerfield, MA
  • Average rainfall days in January: 9.1 days

The month with the highest number of rainy days is April (15.3 days).
The month with the least rainy days is February (8.9 days).

Average snowfall in January
South Deerfield, MA

Average snowfall in January - South Deerfield, MA
  • Average snowfall in January: 5.47"

The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
South Deerfield, MA

Average snowfall days in January - South Deerfield, MA
  • Average snowfall days in January: 10 days

The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
South Deerfield, MA

Average daylight in January / Average sunshine in January - South Deerfield, MA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 5h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in January
South Deerfield, MA

Average sunshine days in January - South Deerfield, MA
  • Average sunshine days in January: 16.3 days

The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in January
South Deerfield, MA

Average UV index in January - South Deerfield, MA
  • 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 January, February, March, October, November and December (UV index 2).

Average cloud cover in January
South Deerfield, MA

Average cloud cover in January - South Deerfield, MA
  • Average cloud cover in January: 47

The months with the most cloud cover are February and March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in January
South Deerfield, MA

Average visibility in January - South Deerfield, MA
  • Average visibility in January: 5mi

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

South Deerfield, Massachusetts, USA

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