Keene
New Hampshire, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Keene, NH

December, the first month of the winter, in Keene, is also a wintry month, with average temperature ranging between max 35.4°F (1.9°C) and min 17.1°F (-8.3°C).

Temperature

In December, the average high-temperature decreases, from a frosty 48.6°F (9.2°C) in November, to a cold 35.4°F (1.9°C). In Keene, the average low-temperature is 17.1°F (-8.3°C).

Rainfall

In December, in Keene, the rain falls for 13 days. Throughout December, 3.6" (91mm) of precipitation is accumulated. Throughout the year, in Keene, there are 138 rainfall days, and 42.2" (1071mm) of precipitation is accumulated.

Daylight

With an average of 9.1h of daylight, December has the shortest days of the year in Keene, New Hampshire.

Sunshine

November and December, with an average of 4h of sunshine, are months with the least sunshine in Keene.

UV index

Months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in December in Keene?

The average high-temperature, in December, in Keene, is 35.4°F (1.9°C), while the average low-temperature is 17.1°F (-8.3°C).

How much does it rain in Keene in December?

In Keene, New Hampshire, in December, during 13 rainfall days, 3.6" (91mm) of precipitation is typically accumulated.

What is the month with the shortest days in Keene?

The month with the shortest days is December, with an average of 9.1h of daylight.

What is the average length of the day in December in Keene?

In Keene, New Hampshire, the average length of the day in December is 9.1h.

What is the month with the least sunshine in Keene?

Months with the least sunshine in Keene are November and December, with an average of 4h of sunshine.

How many hours of sunshine does Keene have in December?

In December, the average sunshine in Keene, New Hampshire, is 4h.

When is the lowest UV index in Keene?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Keene, New Hampshire.

What is the UV index intensity in December in Keene?

In Keene, New Hampshire, the average daily maximum UV index in December is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV rays.
Average temperature in December - Keene, NH
  • Average high temperature in December: 35.4°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in December: 17.1°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average rainfall in December - Keene, NH
  • Average rainfall in December: 3.6"

Wettest months (with the highest rainfall) are May and August (3.9").
The driest month (with the lowest rainfall) is February (2.9").

Average rainfall days in December - Keene, NH
  • Average rainfall days in December: 13 days

Months with the highest number of rainy days are May, November and December (13 days).
Months with the lowest number of rainy days are February, July, September and October (10 days).

Average daylight in December / Average sunshine in December - Keene, NH
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 4h

Months with most sunshine are June and July (Average sunshine: 9h).
Months with least sunshine are November and December (Average sunshine: 4).

Average UV index in December - Keene, NH
  • Average UV index in December: 1

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).