January weather forecastBrookline, NH

January

Weather in January

January, like December, is another subzero cold winter month in Brookline, New Hampshire, with temperature in the range of an average high of 30.9°F (-0.6°C) and an average low of 18.5°F (-7.5°C).

Temperature

January, known for its average high temperature of 30.9°F (-0.6°C) and an average low temperature of 18.5°F (-7.5°C), is the coldest month.

Humidity

The average relative humidity in January is 80%.

Rainfall

In January, the rain falls for 7.8 days. Throughout January, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 147.4 rainfall days, and 28.46" (723mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Brookline. In Brookline, during January, snow falls for 9.1 days and regularly aggregates up to 4.96" (126mm) of snow. Throughout the year, there are 35.7 snowfall days, and 25.35" (644mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 28min.
On the first day of the month, sunrise is at 7:16 am and sunset at 4:23 pm. On the last day of January, sunrise is at 7:02 am and sunset at 4:57 pm EST.

Sunshine

In Brookline, the average sunshine in January is 5.1h.

UV index

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A maximum daily UV index of 2 during January morphs into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.

Frequently asked questions

The lowest temperatures are recorded in January, with averages reaching a high of 30.9°F (-0.6°C) and a low of 18.5°F (-7.5°C).

January temperatures vary between a high-temperature of 30.9°F (-0.6°C) and a low-temperature of 18.5°F (-7.5°C).

In Brookline, the average relative humidity in January is 80%.

In Brookline, New Hampshire, during January, the rain falls for 7.8 days and regularly aggregates up to 2.2" (56mm) of precipitation.

In Brookline, in January, during 9.1 snowfall days, 4.96" (126mm) of snow is typically accumulated.

In Brookline, the average day length in January is 9h and 28min.

On the first day of January, sunrise is at 7:16 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 4:57 pm EST.

In January, the average sunshine duration is 5.1h.

The months with the lowest UV index in Brookline are January through March, November and December, with an average maximum UV index of 2.

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Brookline, NH

  • Average high temperature in January: 30.9°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (30.9°F).

  • Average low temperature in January: 18.5°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in January
Brookline, NH

  • Average pressure in January: 30.01"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in January
Brookline, NH

  • Average wind speed in January: 8.3mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).

Average humidity in January
Brookline, NH

  • Average humidity in January: 80%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).

Average rainfall in January
Brookline, NH

  • Average rainfall in January: 2.2"

The wettest months (with the highest rainfall) are October and December (2.83").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in January
Brookline, NH

  • Average rainfall days in January: 7.8 days

The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (7.3 days).

Average snowfall in January
Brookline, NH

  • Average snowfall in January: 4.96"

The month with the highest snowfall is February (6.38").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Brookline, NH

  • Average snowfall days in January: 9.1 days

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Brookline, NH

  • Average daylight in January: 9h and 30min

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: 5h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in January
Brookline, NH

  • Average sunshine days in January: 17.4 days

The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (13.2 days).

Average UV index in January
Brookline, NH

  • 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, March, November and December (UV index 2).

Average cloud cover in January
Brookline, NH

  • Average cloud cover in January: 45

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in January
Brookline, NH

  • 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).