December weather forecast
Grand View, ID

Weather in December

The first month of the winter, December, is also a wintry month in Grand View, Idaho, with an average temperature fluctuating between 36.9°F (2.7°C) and 25.9°F (-3.4°C).

Temperature

With an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 25.9°F (-3.4°C), December is the coldest month.

Humidity

In December, the average relative humidity in Grand View is 74%.

Rainfall

The month with the most rainfall in Grand View is December, when the rain falls for 9.4 days and typically aggregates up to 1.3" (33mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 7.1 days and accumulates 4.06" (103mm) of snow.

Daylight

With an average of 9h and 4min of daylight, December has the shortest days of the year in Grand View.
On the first day of the month, sunrise is at 7:56 am and sunset at 5:10 pm. On the last day of December, in Grand View, sunrise is at 8:15 am and sunset at 5:19 pm MST.

Sunshine

December has the least sunshine of the year, with an average of 6.2h 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 reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in December transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Grand View?

December is the coldest month in Grand View, with an average high-temperature of 36.9°F (2.7°C) and an average low-temperature of 25.9°F (-3.4°C).

What is the average humidity in December in Grand View?

The average relative humidity in December in Grand View, Idaho, is 74%.

What is the wettest month in Grand View?

December is the month with the most rainfall in Grand View. Rain falls for 9.4 days and accumulates 1.3" (33mm) of precipitation.

How many days does it rain in December in Grand View?

In December, the rain falls for 9.4 days. Throughout December, 1.3" (33mm) of precipitation is accumulated.

When does it snow the most in Grand View?

The month with the most snowfall is December, when snow falls for 7.1 days and typically aggregates up to 4.06" (103mm) of snow.

How much does it snow in Grand View in December?

In Grand View, Idaho, in December, during 7.1 snowfall days, 4.06" (103mm) of snow is typically accumulated.

What is the month with the shortest days in Grand View?

With an average of 9h and 4min of daylight, December has the shortest days of the year in Grand View.

What is the average length of the day in December in Grand View?

In Grand View, Idaho, the average day length in December is 9h and 4min.

When are sunrise and sunset in December in Grand View?

In December, on the first day of the month, sunrise is at 7:56 am and sunset at 5:10 pm. On the last day of the month, in Grand View, sunrise is at 8:15 am and sunset at 5:19 pm MST.

What is the month with the least sunshine in Grand View?

December has the least sunshine of the year in Grand View, Idaho, with an average of 6.2h of sunshine.

How many hours of sunshine does Grand View have in December?

In Grand View, the average sunshine duration in December is 6.2h.

What is the month with the lowest UV index in Grand View?

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

What is the UV index reading in December in Grand View?

In December, the average daily maximum UV index in Grand View is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.

Average temperature in December
Grand View, ID

Average temperature in December - Grand View, ID
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is December (36.9°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is December (25.9°F).

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Average pressure in December
Grand View, ID

Average pressure in December - Grand View, ID
  • Average pressure in December: 30.22"Hg

The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in December
Grand View, ID

Average wind speed in December - Grand View, ID
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

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Average humidity in December
Grand View, ID

Average humidity in December - Grand View, ID
  • Average humidity in December: 74%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is July (25%).

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Average rainfall in December
Grand View, ID

Average rainfall in December - Grand View, ID
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is December (1.3").
The driest month (with the least rainfall) is August (0.08").

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Average rainfall days in December
Grand View, ID

Average rainfall days in December - Grand View, ID
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (2 days).

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Average snowfall in December
Grand View, ID

Average snowfall in December - Grand View, ID
  • Average snowfall in December: 4.06"

The month with the highest snowfall is December (4.06").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Grand View, ID

Average snowfall days in December - Grand View, ID
  • Average snowfall days in December: 7.1 days

The month with the highest number of snowfall days is December (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Grand View, ID

Average daylight in December / Average sunshine in December - Grand View, ID
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 19min).
The month with the shortest days is December (Average daylight: 9h and 4min).

  • Average sunshine in December: 6.2h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.2h).

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Average sunshine days in December
Grand View, ID

Average sunshine days in December - Grand View, ID
  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (14.9 days).

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Average UV index in December
Grand View, ID

Average UV index in December - Grand View, 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
Grand View, ID

Average cloud cover in December - Grand View, ID
  • Average cloud cover in December: 34

The month with the most cloud cover is December (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 7).

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Average visibility in December
Grand View, ID

Average visibility in December - Grand View, 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).

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