December weather forecast
Merna, NE

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Weather in December

December, the first month of the winter in Merna, is also a wintry month, with temperature in the range of an average high of 34.7°F (1.5°C) and an average low of 21.7°F (-5.7°C).

Temperature

In December, the average high-temperature decreases from a frosty 48.7°F (9.3°C) in November to a wintry 34.7°F (1.5°C). In December, Merna encounters an average low-temperature of 21.7°F (-5.7°C) during the night.

Humidity

In December, the average relative humidity is 73%.

Rainfall

In Merna, in December, during 3.7 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Merna, Nebraska, during the entire year, the rain falls for 93.8 days and collects up to 15.75" (400mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Merna. The months with the most snowfall in Merna are February and December, with an average 3.62" (92mm) of accumulated snow.

Daylight

The month with the shortest days in Merna is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:46 am and sunset at 5:10 pm. On the last day of December, in Merna, sunrise is at 8:05 am and sunset at 5:19 pm CST.

Sunshine

The average sunshine in December is 5.8h.

UV index

The months with the lowest UV index in Merna are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A typical high UV index of 2 in December suggests the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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Frequently asked questions

How cold is it in Merna in December?

Merna in December has an average high-temperature of 34.7°F (1.5°C) and an average low-temperature of 21.7°F (-5.7°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in December in Merna?

The average relative humidity in December in Merna, Nebraska, is 73%.

How much does it rain in Merna in December?

In Merna, in December, during 3.7 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

When does it snow the most in Merna?

The months with the most snowfall in Merna are February and December, with an average 3.62" (92mm) of accumulated snow.

How many days does it snow in December in Merna?

In December, it is snowing for 6.9 days. Throughout December, 3.62" (92mm) of snow is accumulated.

What is the month with the shortest days in Merna?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

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

In December, the average day length in Merna, Nebraska, is 9h and 14min.

What time are sunrise and sunset in December in Merna?

On the first day of December in Merna, sunrise is at 7:46 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:19 pm CST.

How many hours of sunshine does Merna have in December?

In Merna, the average sunshine duration in December is 5.8h.

What are the months with the lowest UV index in Merna?

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

What is the UV index reading in December in Merna?

In December, the average daily maximum UV index in Merna, Nebraska, is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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
Merna, NE

Average temperature in December - Merna, NE
  • Average high temperature in December: 34.7°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in December: 21.7°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in December
Merna, NE

Average pressure in December - Merna, NE
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in December
Merna, NE

Average wind speed in December - Merna, NE
  • Average wind speed in December: 10.9mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is July (8.9mph).

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Average humidity in December
Merna, NE

Average humidity in December - Merna, NE
  • Average humidity in December: 73%

The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is October (60%).

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Average rainfall in December
Merna, NE

Average rainfall in December - Merna, NE
  • Average rainfall in December: 1.06"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.51").

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Average rainfall days in December
Merna, NE

Average rainfall days in December - Merna, NE
  • Average rainfall days in December: 3.7 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is December (3.7 days).

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Average snowfall in December
Merna, NE

Average snowfall in December - Merna, NE
  • Average snowfall in December: 3.62"

The months with the highest snowfall are February and December (3.62").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Merna, NE

Average snowfall days in December - Merna, NE
  • Average snowfall days in December: 6.9 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Merna, NE

Average daylight in December / Average sunshine in December - Merna, NE
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 5h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).

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Average sunshine days in December
Merna, NE

Average sunshine days in December - Merna, NE
  • Average sunshine days in December: 20.9 days

The month with the most sunshine days is October (23 days).
The month with the least sunshine days is April (14.6 days).

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Average UV index in December
Merna, NE

Average UV index in December - Merna, NE
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
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
Merna, NE

Average cloud cover in December - Merna, NE
  • Average cloud cover in December: 37

The months with the most cloud cover are January and February (Cloud cover 41).
The months with the least cloud cover are July and September (Cloud cover 23).

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Average visibility in December
Merna, NE

Average visibility in December - Merna, NE
  • 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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Merna, Nebraska, USA

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