December weather forecast and climate
Willow Island, NE

Weather in December

The first month of the winter, December, is still a cold month in Willow Island, Nebraska, with average temperature fluctuating between 22.3°F (-5.4°C) and 36.5°F (2.5°C).

Temperature

In Willow Island, the average high-temperature decreases, from a fresh 50°F (10°C) in November, to a wintry 36.5°F (2.5°C). The average low-temperature, in December, is 22.3°F (-5.4°C).

Humidity

In December, the average relative humidity is 70%.

Rainfall

In Willow Island, Nebraska, during December, the rain falls for 3.5 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 109.4 rainfall days, and 17.28" (439mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Willow Island. In Willow Island, during 6.5 snowfall days, 2.6" (66mm) of snow is typically accumulated. Throughout the year, in Willow Island, there are 29.8 snowfall days, and 13.15" (334mm) of snow is accumulated.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year in Willow Island, Nebraska.

Sunshine

The average sunshine in Willow Island is 6.2h.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to 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 average humidity in December in Willow Island?

The average relative humidity in December is 70%.

How much does it rain in Willow Island in December?

In December, the rain falls for 3.5 days. Throughout December, 0.83" (21mm) of precipitation is accumulated.

How many days does it snow in December in Willow Island?

In Willow Island, in December, snow falls for 6.5 days, with typically accumulated 2.6" (66mm) of snow.

What is the month with the shortest days in Willow Island?

The month with the shortest days in Willow Island is December, with an average of 9.3h of daylight.

How many hours of daylight does Willow Island have in December?

The average length of the day in December in Willow Island, Nebraska, is 9.3h.

How long on average sun shines in December in Willow Island?

In Willow Island, the average sunshine in December is 6.2h.

What is the month with the lowest UV index in Willow Island?

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

What is the UV index intensity in December in Willow Island?

In Willow Island, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to the Sun's UV rays.

Average temperature in December
Willow Island, NE

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

The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in December: 22.3°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in December
Willow Island, NE

Average pressure in December - Willow Island, NE
  • Average pressure in December: 30.14"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.84").

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Average wind speed in December
Willow Island, NE

Average wind speed in December - Willow Island, NE
  • Average wind speed in December: 10.4mph

The windiest month (with the highest average wind speed) is April (12.3mph).
The calmest month (with the lowest average wind speed) is July (9.2mph).

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Average humidity in December
Willow Island, NE

Average humidity in December - Willow Island, NE
  • Average humidity in December: 70%

The month with the highest relative humidity is January (74%).
The month with the lowest relative humidity is October (58%).

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Average rainfall in December
Willow Island, NE

Average rainfall in December - Willow Island, NE
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is January (0.39").

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Average rainfall days in December
Willow Island, NE

Average rainfall days in December - Willow Island, NE
  • Average rainfall days in December: 3.5 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in December
Willow Island, NE

Average snowfall in December - Willow Island, NE
  • Average snowfall in December: 2.6"

The month with the highest snowfall is February (2.95").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Willow Island, NE

Average snowfall days in December - Willow Island, NE
  • Average snowfall days in December: 6.5 days

Months with the highest number of snowfall days are February and December (6.5 days).
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
Willow Island, NE

Average daylight in December / Average sunshine in December - Willow Island, NE
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 6.2h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is January (Average sunshine: 6h).

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Average sunshine days in December
Willow Island, NE

Average sunshine days in December - Willow Island, NE
  • Average sunshine days in December: 22.7 days

The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in December
Willow Island, NE

Average UV index in December - Willow Island, NE
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Willow Island, NE

Average cloud cover in December - Willow Island, NE
  • Average cloud cover in December: 34

The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 22).

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Average visibility in December
Willow Island, NE

Average visibility in December - Willow Island, NE
  • Average visibility in December: 6mi

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

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