December weather forecast
Parker, ID

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Weather in December

December, the first month of the winter in Parker, is still a freezing cold month, with an average temperature fluctuating between 26.2°F (-3.2°C) and 14.2°F (-9.9°C).

Temperature

December stands out as Parker's coldest month, with temperatures ranging between an average high of 26.2°F (-3.2°C) and a low of 14.2°F (-9.9°C).

Humidity

The average relative humidity in December is 88%.

Rainfall

In Parker, in December, it is raining for 6.6 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 97.5 rainfall days, and 11.85" (301mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. In Parker, in December, during 17.9 snowfall days, 8.82" (224mm) of snow is typically accumulated. Throughout the year, there are 83.8 snowfall days, and 41.93" (1065mm) of snow is accumulated.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:42 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 4:59 pm MST.

Sunshine

In Parker, the average sunshine in December is 4.9h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 1 in December interprets into the following advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

December, on average, is the coldest month, registering a high temperature of 26.2°F (-3.2°C) and a low of 14.2°F (-9.9°C).

How cold is it in December?

During December, Parker experiences an average high-temperature of 26.2°F (-3.2°C) and a low-temperature of 14.2°F (-9.9°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 82.4°F (28°C).

What is the average humidity in December?

In Parker, the average relative humidity in December is 88%.

How many days does it rain in December?

In Parker, during December, the rain falls for 6.6 days and regularly aggregates up to 1.14" (29mm) of precipitation.

How many days does it snow in December?

In Parker, during December, snow falls for 17.9 days and regularly aggregates up to 8.82" (224mm) of snow.

What is the month with the shortest days?

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

How many hours of daylight does Parker have in December?

The average day length in December is 8h and 58min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:42 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 4:59 pm MST.

How long on average sun shines in December?

In December, the average sunshine duration is 4.9h.

When is the lowest UV index?

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

How high is the UV index in December?

In Parker, the average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes 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
Parker, ID

Average temperature in December - Parker, ID
  • Average high temperature in December: 26.2°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is December (26.2°F).

  • Average low temperature in December: 14.2°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

Average pressure in December
Parker, ID

Average pressure in December - Parker, ID
  • Average pressure in December: 30.26"Hg

The month with the highest atmospheric pressure is January (30.28"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Parker, ID

Average wind speed in December - Parker, ID
  • Average wind speed in December: 4.3mph

The windiest month (with the highest average wind speed) is June (6.9mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

Average humidity in December
Parker, ID

Average humidity in December - Parker, ID
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (39%).

Average rainfall in December
Parker, ID

Average rainfall in December - Parker, ID
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is January (1.5").
The driest month (with the least rainfall) is July (0.28").

Average rainfall days in December
Parker, ID

Average rainfall days in December - Parker, ID
  • Average rainfall days in December: 6.6 days

The month with the highest number of rainy days is April (13 days).
The month with the least rainy days is July (5 days).

Average snowfall in December
Parker, ID

Average snowfall in December - Parker, ID
  • Average snowfall in December: 8.82"

The month with the highest snowfall is January (11.97").
The months with the least snowfall are June, July and August (0").

Average snowfall days in December
Parker, ID

Average snowfall days in December - Parker, ID
  • Average snowfall days in December: 17.9 days

The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in December
Parker, ID

Average sunshine days in December - Parker, ID
  • Average sunshine days in December: 11.7 days

The month with the most sunshine days is July (24.8 days).
The month with the least sunshine days is February (10.6 days).

Average UV index in December
Parker, ID

Average UV index in December - Parker, ID
  • Average UV index in December: 1

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).

Average cloud cover in December
Parker, ID

Average cloud cover in December - Parker, ID
  • Average cloud cover in December: 52

The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 11).

Average visibility in December
Parker, ID

Average visibility in December - Parker, ID
  • Average visibility in December: 4mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (3mi).

Parker, Idaho, USA

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