December weather forecast
Seward, NE

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Weather in December

In December, Seward, Nebraska plunges into full winter chill, as temperatures plummet considerably with an average high around 35.4°F (1.9°C) and a wintry low of 22.3°F (-5.4°C). Compared to November, December proves to be significantly colder and snowier. Days are significantly shorter with daylight hours averaging 9.3, the least in a year. Those picturesque snowfalls that make winter in Seward memorable come to full force, especially around the holiday season. Consequently, with a beautiful crystalline landscape, the city bids farewell to the year, embracing the cold winter nights and the fluffy snow laden mornings.

Temperature

A decrease in the average high-temperature is observed in Seward, Nebraska, during December, shifting from a frosty 49.6°F (9.8°C) in November to an icy 35.4°F (1.9°C). During the month of December, the temperature generally drops to a low average of 22.3°F (-5.4°C).

Humidity

In December, the average relative humidity in Seward is 75%.

Rainfall

In Seward, during December, the rain falls for 2.9 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, in Seward, there are 98.2 rainfall days, and 11.06" (281mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Seward, in December, snow falls for 4.1 days, with typically accumulated 0.51" (13mm) of snow. In Seward, Nebraska, during the entire year, snow falls for 22.3 days and aggregates up to 4.65" (118mm) of snow.

Daylight

With an average of 9h and 18min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:34 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:52 am and sunset at 5:10 pm CST.

Sunshine

In Seward, the average sunshine in December is 5.3h.

UV index

The months with the lowest UV index in Seward are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.
Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

How cold is it in Seward in December?

December temperatures in Seward vary between a high-temperature of 35.4°F (1.9°C) and a low-temperature of 22.3°F (-5.4°C). In August, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 91.4°F (33°C).

What is the average humidity in December in Seward?

In Seward, the average relative humidity in December is 75%.

How many days does it rain in December in Seward?

In Seward, in December, during 2.9 rainfall days, 0.59" (15mm) of precipitation is typically accumulated.

How much does it snow in Seward in December?

In Seward, in December, during 4.1 snowfall days, 0.51" (13mm) of snow is typically accumulated.

What is the month with the shortest days in Seward?

With an average of 9h and 18min of daylight, December has the shortest days of the year in Seward.

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

In Seward, the average day length in December is 9h and 17min.

When are sunrise and sunset in December in Seward?

In December, on the first day of the month, sunrise is at 7:34 am and sunset at 5:01 pm. On the last day of the month, in Seward, sunrise is at 7:52 am and sunset at 5:10 pm CST.

How many hours of sunshine does Seward have in December?

The average sunshine duration in December is 5.3h.

When is the lowest UV index in Seward?

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 Seward?

In Seward, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
49.6°F 9.8°C
35.4°F 1.9°C
31.6°F -0.2°C
Average low temperature
33.1°F 0.6°C
22.3°F -5.4°C
18°F -7.8°C
Average pressure
30.08" 764mmHg
30.13" 765mmHg
30.16" 766mmHg
Average wind speed
10.6mph 17.1km/h
10.4mph 16.7km/h
10.4mph 16.7km/h
Average max. wind speed
11.4mph 18.3km/h
11.1mph 17.9km/h
11.2mph 18km/h
Average wind speed gusts
17mph 27.4km/h
16.8mph 27km/h
17mph 27.4km/h
Average humidity
66%
75%
79%
Average rainfall
0.39" 10mm
0.59" 15mm
0.31" 8mm
Average rainfall days
3.4
2.9
2.6
Average snowfall
0.35" 9mm
0.51" 13mm
1.06" 27mm
Average snowfall days
2.2
4.1
5.8
Average daylight
9h 5min
9h 2min
9h 4min
Average sunshine
6h 1min
5h 2min
5h 1min
Average sunshine days
24
23.5
23.3
Average UV index
2
2
2
Average cloud cover
31%
41%
44%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in December
Seward, NE

Average temperature in December - Seward, NE
  • Average high temperature in December: 35.4°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in December: 22.3°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in December
Seward, NE

Average pressure in December - Seward, NE
  • Average pressure in December: 30.13"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
Seward, NE

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

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

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Average humidity in December
Seward, NE

Average humidity in December - Seward, NE
  • Average humidity in December: 75%

The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is October (64%).

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Average rainfall in December
Seward, NE

Average rainfall in December - Seward, NE
  • Average rainfall in December: 0.59"

The wettest month (with the highest rainfall) is May (1.85").
The driest month (with the least rainfall) is February (0.28").

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Average rainfall days in December
Seward, NE

Average rainfall days in December - Seward, NE
  • Average rainfall days in December: 2.9 days

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (1.9 days).

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Average snowfall in December
Seward, NE

Average snowfall in December - Seward, NE
  • Average snowfall in December: 0.51"

The month with the highest snowfall is January (1.06").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Seward, NE

Average snowfall days in December - Seward, NE
  • Average snowfall days in December: 4.1 days

The month with the highest number of snowfall days is February (5.9 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
Seward, NE

Average daylight in December / Average sunshine in December - Seward, NE
  • Average daylight in December: 9h and 2min

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 18min).

  • Average sunshine in December: 5h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).

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Average sunshine days in December
Seward, NE

Average sunshine days in December - Seward, NE
  • Average sunshine days in December: 23.5 days

The month with the most sunshine days is November (24 days).
The month with the least sunshine days is June (14.2 days).

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Average UV index in December
Seward, NE

Average UV index in December - Seward, 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
Seward, NE

Average cloud cover in December - Seward, NE
  • Average cloud cover in December: 41

The months with the most cloud cover are January and March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in December
Seward, NE

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

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