December weather forecast
Reynolds, ID

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Weather in December

The first month of the winter, December, is also an icy month in Reynolds, Idaho, with an average temperature varying between 25.7°F (-3.5°C) and 36.5°F (2.5°C).

Temperature

The coldest period tends to be December, when average temperatures fluctuate between a high of 36.5°F (2.5°C) and a low of 25.7°F (-3.5°C).

Humidity

The average relative humidity in December in Reynolds is 76%.

Rainfall

In Reynolds, in December, it is raining for 9.3 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, there are 98.5 rainfall days, and 9.69" (246mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Reynolds are January through April, November and December. In Reynolds, in December, during 6.6 snowfall days, 3.15" (80mm) of snow is typically accumulated. In Reynolds, during the entire year, snow falls for 22.5 days and aggregates up to 10.55" (268mm) of snow.

Daylight

December has the shortest days of the year in Reynolds, with an average of 9h and 0min of daylight.
On the first day of the month, sunrise is at 7:59 am and sunset at 5:12 pm. On the last day of December, sunrise is at 8:18 am and sunset at 5:21 pm MST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.8h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Reynolds?

Temperature records in Reynolds, Idaho, mark December as the coldest month, with highs averaging 36.5°F (2.5°C) and lows at 25.7°F (-3.5°C).

How cold is December in Reynolds?

The high-temperature in Reynolds during December is 36.5°F (2.5°C) and the low-temperature is 25.7°F (-3.5°C).

What is the average humidity in December in Reynolds?

In December, the average relative humidity in Reynolds, Idaho, is 76%.

How many days does it rain in December in Reynolds?

In Reynolds, during December, the rain falls for 9.3 days and regularly aggregates up to 1.42" (36mm) of precipitation.

How many days does it snow in December in Reynolds?

In December, in Reynolds, Idaho, it is snowing for 6.6 days. Throughout December, 3.15" (80mm) of snow is accumulated.

What is the month with the shortest days in Reynolds?

December has the shortest days of the year in Reynolds, Idaho, with an average of 9h and 0min of daylight.

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

In December, the average day length in Reynolds, Idaho, is 9h and 3min.

When are sunrise and sunset in December in Reynolds?

In December, on the first day of the month, sunrise is at 7:59 am and sunset at 5:12 pm. On the last day of the month, in Reynolds, sunrise is at 8:18 am and sunset at 5:21 pm MST.

What is the month with the least sunshine in Reynolds?

The months with the least sunshine in Reynolds, Idaho, are January and December, with an average of 5.8h of sunshine.

How long on average sun shines in December in Reynolds?

The average sunshine duration in December in Reynolds is 5.8h.

What is the month with the lowest UV index in Reynolds?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Reynolds, Idaho.

What is the UV index intensity in December in Reynolds?

The average daily maximum UV index in December in Reynolds is 2. A UV Index estimate of 2, and below, represents a low health risk 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 December
Reynolds, ID

Average temperature in December - Reynolds, ID
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in December: 25.7°F

The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (25.7°F).

Average pressure in December
Reynolds, ID

Average pressure in December - Reynolds, ID
  • Average pressure in December: 30.21"Hg

The month with the highest atmospheric pressure is January (30.25"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in December
Reynolds, ID

Average wind speed in December - Reynolds, ID
  • Average wind speed in December: 6.5mph

The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is January (5.8mph).

Average humidity in December
Reynolds, ID

Average humidity in December - Reynolds, ID
  • Average humidity in December: 76%

The month with the highest relative humidity is January (78%).
The months with the lowest relative humidity are July and August (29%).

Average rainfall in December
Reynolds, ID

Average rainfall in December - Reynolds, ID
  • Average rainfall in December: 1.42"

The wettest month (with the highest rainfall) is March (1.46").
The driest months (with the least rainfall) are July and August (0.12").

Average rainfall days in December
Reynolds, ID

Average rainfall days in December - Reynolds, ID
  • Average rainfall days in December: 9.3 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (3.1 days).

Average snowfall in December
Reynolds, ID

Average snowfall in December - Reynolds, ID
  • Average snowfall in December: 3.15"

The month with the highest snowfall is January (3.23").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Reynolds, ID

Average snowfall days in December - Reynolds, ID
  • Average snowfall days in December: 6.6 days

The month with the highest number of snowfall days is December (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Reynolds, ID

Average daylight in December / Average sunshine in December - Reynolds, ID
  • Average daylight in December: 9h and 0min

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 0min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 48min).

Average sunshine days in December
Reynolds, ID

Average sunshine days in December - Reynolds, ID
  • Average sunshine days in December: 17.6 days

The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is March (14 days).

Average UV index in December
Reynolds, ID

Average UV index in December - Reynolds, ID
  • Average UV index in December: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Reynolds, ID

Average cloud cover in December - Reynolds, ID
  • Average cloud cover in December: 39

The months with the most cloud cover are January and December (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 8).

Average visibility in December
Reynolds, ID

Average visibility in December - Reynolds, ID
  • Average visibility in December: 6mi

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

Reynolds, Idaho, USA

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