December weather forecast
Parma, ID

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Weather in December

December, the first month of the winter in Parma, is also an icy month, with an average temperature varying between 35.6°F (2°C) and 24.3°F (-4.3°C).

Temperature

Parma's coldest temperatures are experienced in December, with average high temperatures of 35.6°F (2°C) and lows of 24.3°F (-4.3°C).

Humidity

The average relative humidity in December is 77%.

Rainfall

The month with the most rainfall is December, when the rain falls for 11.3 days and typically aggregates up to 1.5" (38mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Parma. December is the month with the most snowfall in Parma. Snow falls for 7.8 days and accumulates 4.21" (107mm) of snow.

Daylight

With an average of 9h and 0min of daylight, December has the shortest days of the year in Parma.
On the first day of the month, sunrise is at 8:02 am and sunset at 5:11 pm. On the last day of December, sunrise is at 8:21 am and sunset at 5:20 pm MST.

Sunshine

The month with the least sunshine is December, with an average of 5.5h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 2 in December interprets into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What time of the year is the coldest in Parma?

December proves to be the coldest month in Parma, recording an average maximum temperature of 35.6°F (2°C) and a minimum temperature of 24.3°F (-4.3°C).

How cold is December in Parma?

The average high-temperature and low-temperature during December are 35.6°F (2°C) and 24.3°F (-4.3°C) respectively.

What is the average humidity in December in Parma?

The average relative humidity in December in Parma, Idaho, is 77%.

What is the rainiest month in Parma?

December is the month with the most rainfall in Parma. Rain falls for 11.3 days and accumulates 1.5" (38mm) of precipitation.

How much does it rain in Parma in December?

In Parma, in December, during 11.3 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

What is the snowiest month in Parma?

The month with the most snowfall in Parma, Idaho, is December, when snow falls for 7.8 days and typically aggregates up to 4.21" (107mm) of snow.

How much does it snow in Parma in December?

In Parma, Idaho, in December, during 7.8 snowfall days, 4.21" (107mm) of snow is typically accumulated.

What is the month with the shortest days in Parma?

The month with the shortest days is December, with an average of 9h and 0min of daylight.

How many hours of daylight does Parma have in December?

The average day length in December in Parma, Idaho, is 8h and 59min.

What time are sunrise and sunset in December in Parma?

In December, on the first day of the month, sunrise is at 8:02 am and sunset at 5:11 pm. On the last day of the month, in Parma, Idaho, sunrise is at 8:21 am and sunset at 5:20 pm MST.

What is the month with the least sunshine in Parma?

With an average of 5.5h of sunshine, December has the least sunshine of the year in Parma, Idaho.

How long on average sun shines in December in Parma?

In December, the average sunshine duration in Parma, Idaho, is 5.5h.

When is the lowest UV index in Parma?

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

What is the UV index reading in December in Parma?

In Parma, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Parma, ID

Average temperature in December - Parma, ID
  • Average high temperature in December: 35.6°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is December (35.6°F).

  • Average low temperature in December: 24.3°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).

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Average pressure in December
Parma, ID

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

The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

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Average wind speed in December
Parma, ID

Average wind speed in December - Parma, ID
  • Average wind speed in December: 4.7mph

The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

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Average humidity in December
Parma, ID

Average humidity in December - Parma, ID
  • Average humidity in December: 77%

The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (29%).

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Average rainfall in December
Parma, ID

Average rainfall in December - Parma, ID
  • Average rainfall in December: 1.5"

The wettest month (with the highest rainfall) is December (1.5").
The driest months (with the least rainfall) are July and August (0.2").

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Average rainfall days in December
Parma, ID

Average rainfall days in December - Parma, ID
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is August (3.4 days).

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Average snowfall in December
Parma, ID

Average snowfall in December - Parma, ID
  • Average snowfall in December: 4.21"

The month with the highest snowfall is December (4.21").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Parma, ID

Average snowfall days in December - Parma, ID
  • Average snowfall days in December: 7.8 days

The month with the highest number of snowfall days is December (7.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Parma, 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: 5h and 3min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Parma, ID

Average sunshine days in December - Parma, ID
  • Average sunshine days in December: 15.4 days

The month with the most sunshine days is July (23.6 days).
The month with the least sunshine days is March (13.5 days).

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Average UV index in December
Parma, ID

Average UV index in December - Parma, 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).

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Average cloud cover in December
Parma, ID

Average cloud cover in December - Parma, ID
  • Average cloud cover in December: 41

The month with the most cloud cover is December (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in December
Parma, ID

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

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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Parma, Idaho, USA

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