December weather forecast
Lyman, NE

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Weather in December

The first month of the winter, December, is still a cold month in Lyman, Nebraska, with temperature in the range of an average high of 36.5°F (2.5°C) and an average low of 20.7°F (-6.3°C).

Temperature

Lyman, Nebraska, experiences its lowest average temperatures in December, reaching a peak of 36.5°F (2.5°C) and a minimum of 20.7°F (-6.3°C).

Humidity

In December, the average relative humidity in Lyman is 67%.

Rainfall

In December, the rain falls for 3.5 days. Throughout December, 0.55" (14mm) of precipitation is accumulated. In Lyman, Nebraska, during the entire year, the rain falls for 104.8 days and collects up to 13.35" (339mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Lyman. In December, in Lyman, it is snowing for 7.1 days. Throughout December, 2.48" (63mm) of snow is accumulated. Throughout the year, there are 39 snowfall days, and 17.17" (436mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:05 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:35 pm MST.

Sunshine

The average sunshine in December is 6.5h.

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 value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

What month is the coldest in Lyman?

The lowest temperatures are recorded in December, with averages reaching a high of 36.5°F (2.5°C) and a low of 20.7°F (-6.3°C).

How cold is it in Lyman in December?

An average high-temperature, in December, in Lyman, is 36.5°F (2.5°C) and the average low-temperature is 20.7°F (-6.3°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in December in Lyman?

In December, the average relative humidity is 67%.

How many days does it rain in December in Lyman?

In Lyman, in December, during 3.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

How many days does it snow in December in Lyman?

In Lyman, in December, during 7.1 snowfall days, 2.48" (63mm) of snow is typically accumulated.

What is the month with the shortest days in Lyman?

The month with the shortest days in Lyman is December, with an average of 9h and 12min of daylight.

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

In Lyman, Nebraska, the average day length in December is 9h and 11min.

What time are sunrise and sunset in December in Lyman?

On the first day of December in Lyman, sunrise is at 7:05 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:35 pm MST.

How many hours of sunshine does Lyman have in December?

In December, the average sunshine duration in Lyman is 6.5h.

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

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

How high is the UV index in December in Lyman?

In December, the average daily maximum UV index in Lyman is 2. A UV Index value of 2, and less, symbolizes a low health threat 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
Lyman, NE

Average temperature in December - Lyman, NE
  • Average high temperature in December: 36.5°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (36.5°F).

  • Average low temperature in December: 20.7°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

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Average pressure in December
Lyman, NE

Average pressure in December - Lyman, NE
  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January and December (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in December
Lyman, NE

Average wind speed in December - Lyman, NE
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).

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Average humidity in December
Lyman, NE

Average humidity in December - Lyman, NE
  • Average humidity in December: 67%

The month with the highest relative humidity is January (68%).
The months with the lowest relative humidity are August and September (46%).

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Average rainfall in December
Lyman, NE

Average rainfall in December - Lyman, NE
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days in December
Lyman, NE

Average rainfall days in December - Lyman, NE
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is December (3.5 days).

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Average snowfall in December
Lyman, NE

Average snowfall in December - Lyman, NE
  • Average snowfall in December: 2.48"

The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in December
Lyman, NE

Average snowfall days in December - Lyman, NE
  • Average snowfall days in December: 7.1 days

The month with the highest number of snowfall days is February (8 days).
The months with the least snowfall days are June, July and August (0 days).

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

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

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

  • Average sunshine in December: 6h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).

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Average sunshine days in December
Lyman, NE

Average sunshine days in December - Lyman, NE
  • Average sunshine days in December: 21.6 days

The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index in December
Lyman, NE

Average UV index in December - Lyman, 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
Lyman, NE

Average cloud cover in December - Lyman, NE
  • Average cloud cover in December: 31

The months with the most cloud cover are February and April (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in December
Lyman, NE

Average visibility in December - Lyman, 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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Lyman, Nebraska, USA

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