December weather forecastBerwyn, NE
December
Weather in December
December, the first month of the winter in Berwyn, is also an icy month, with an average temperature varying between 21.7°F (-5.7°C) and 34.7°F (1.5°C).Temperature
December brings a minor decrease, with the average high-temperature reducing from a frosty 48.7°F (9.3°C) in November to an icy 34.7°F (1.5°C). During the December nights, an average temperature of 21.7°F (-5.7°C) is observed.Humidity
In December, the average relative humidity is 73%.Rainfall
In Berwyn, in December, it is raining for 3.7 days, with typically 1.06" (27mm) of accumulated precipitation. In Berwyn, during the entire year, the rain falls for 93.8 days and collects up to 15.75" (400mm) of precipitation.Snowfall
Months with snowfall in Berwyn are January through May, October through December. The months with the most snowfall are February and December, with an average 3.62" (92mm) of accumulated snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:45 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 5:18 pm CST.
Sunshine
In Berwyn, the average sunshine in December is 5.8h.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 average individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Berwyn, 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).
Average pressure in December
Berwyn, 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).
Average wind speed in December
Berwyn, 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).
Average humidity in December
Berwyn, 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%).
Average rainfall in December
Berwyn, 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").
Average rainfall days in December
Berwyn, 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).
Average snowfall in December
Berwyn, 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").
Average snowfall days in December
Berwyn, 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).
Average daylight in December /
Average sunshine in December
Berwyn, NE
- Average daylight in December: 9h and 12min
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 48min
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).
Average sunshine days in December
Berwyn, 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).
Average UV index in December
Berwyn, 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).
Average cloud cover in December
Berwyn, 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).
Average visibility in December
Berwyn, 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).
