Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With December's arrival, Berwick's weather changes as the average high-temperature falls from a chilly 46.8°F (8.2°C) in November to a wintry 34°F (1.1°C). December generally records an average low-temperature of 22.1°F (-5.5°C).Humidity
In Berwick, the average relative humidity in December is 79%.Rainfall
In Berwick, in December, it is raining for 5.2 days, with typically 1.26" (32mm) of accumulated precipitation. In Berwick, during the entire year, the rain falls for 129.8 days and collects up to 25.91" (658mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Berwick. In Berwick, in December, snow falls for 7.7 days, with typically accumulated 1.97" (50mm) of snow. Throughout the year, in Berwick, Iowa, there are 36.2 snowfall days, and 13.94" (354mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Berwick.On the first day of the month, sunrise is at 7:22 am and sunset at 4:44 pm. On the last day of December, in Berwick, sunrise is at 7:41 am and sunset at 4:54 pm CST.
Sunshine
The average sunshine in December in Berwick is 4.7h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To protect against the Sun's most potent rays, avoid direct exposure around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is it in Berwick in December?
What is the average humidity in December in Berwick?
How many days does it rain in December in Berwick?
How much does it snow in Berwick in December?
What is the month with the shortest days in Berwick?
How many hours of daylight does Berwick have in December?
When is the sunrise / sunset in December in Berwick?
How many hours of sunshine does Berwick have in December?
What are the months with the lowest UV index in Berwick?
How high is the UV index in December in Berwick?
Average temperature in December
Berwick, IA
- Average high temperature in December: 34°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Berwick, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Berwick, IA
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Berwick, IA
- Average humidity in December: 79%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Berwick, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Berwick, IA
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Berwick, IA
- Average snowfall in December: 1.97"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Berwick, IA
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Berwick, IA
- 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: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Berwick, IA
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Berwick, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Berwick, IA
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in December
Berwick, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Berwick, Iowa, USA
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