Jamestown
North Dakota, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Jamestown, ND

The first month of the winter, December, is also a subzero cold month in Jamestown, North Dakota, with average temperature varying between 22.8°F (-5.1°C) and 6.4°F (-14.2°C).

Temperature

In Jamestown, the average high-temperature drops, from a wintry 37°F (2.8°C) in November, to a subzero cold 22.8°F (-5.1°C). In Jamestown, the average low-temperature is 6.4°F (-14.2°C).

Rainfall

February and December are months with the least rain in Jamestown when the rain falls for 7 days and typically aggregates up to 0.4" (11.2mm) of rain.

Snowfall

January through May, October through December are months with snowfall in Jamestown.

Daylight

December has the shortest days of the year, with an average of 8.6h of daylight.

Sunshine

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

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Jamestown. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
In December, the average maximum UV index of 1 translate into the following recommendations:
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 Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in December in Jamestown?

In December, in Jamestown, the average high-temperature is 22.8°F (-5.1°C), and the average low-temperature is 6.4°F (-14.2°C).

How many days does it rain in December in Jamestown?

In December, in Jamestown, the rain falls for 7 days. Throughout December, 0.4" (11.2mm) of precipitation is accumulated.

What is the driest month in Jamestown?

February and December are months with the least rain when the rain falls for 7 days and typically aggregates up to 0.4" (11.2mm) of rain.

How much does it snow in Jamestown in December?

Throughout December, in Jamestown, North Dakota, 6.9" (175.3mm) of snow is accumulated.

What is the month with the shortest days in Jamestown?

The month with the shortest days in Jamestown is December, with an average of 8.6h of daylight.

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

In December, the average length of the day is 8.6h.

What is the month with the least sunshine in Jamestown?

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

How many hours of sunshine does Jamestown have in December?

In December, the average sunshine is 4h.

When is the lowest UV index in Jamestown?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Jamestown.

What is the UV index intensity in December in Jamestown?

In Jamestown, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.
Average temperature in December - Jamestown, ND
  • Average high temperature in December: 22.9°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (19.2°F).

  • Average low temperature in December: 6.4°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (1.2°F).

Average rainfall in December - Jamestown, ND
  • Average rainfall in December: 0.4"

The wettest month (with the highest rainfall) is June (3.5").
Driest months (with the lowest rainfall) are February and December (0.4").

Average rainfall days in December - Jamestown, ND
  • Average rainfall days in December: 7 days

The month with the highest number of rainy days is June (11 days).
Months with the lowest number of rainy days are October and November (6 days).

Average snowfall in December - Jamestown, ND
  • Average snowfall in December: 6.9"

The month with the highest snowfall is January (9.7").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in December / Average sunshine in December - Jamestown, ND
  • Average daylight in December: 8.6h

The month with the longest days is June (Average daylight: 15.8h).
The month with shortest days is December (Average daylight: 8.6h).

  • Average sunshine in December: 4h

The month with most sunshine is July (Average sunshine: 11h).
Months with least sunshine are November and December (Average sunshine: 4).

Average UV index in December - Jamestown, ND
  • 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, November and December (UV index 1).