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
Stepping into December, New Vienna observes a temperature decline, with the average high falling from November's chilly 43.7°F (6.5°C) to a freezing cold 31.3°F (-0.4°C). New Vienna, during the month of December, experiences an average low-temperature of 20.7°F (-6.3°C).Humidity
The average relative humidity in December in New Vienna is 83%.Rainfall
In New Vienna, during December, the rain falls for 7.5 days and regularly aggregates up to 1.69" (43mm) of precipitation. In New Vienna, during the entire year, the rain falls for 150.8 days and collects up to 32.4" (823mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In New Vienna, in December, during 11.3 snowfall days, 4.37" (111mm) of snow is typically accumulated. Throughout the year, there are 53.4 snowfall days, and 22.4" (569mm) of snow is accumulated.Daylight
The month with the shortest days in New Vienna, Iowa, is December, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:32 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:41 pm CST.
Sunshine
The average sunshine in December in New Vienna is 4h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Experience reduced UV exposure by about half when donning a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
How cold is it in New Vienna in December?
What is the average humidity in December in New Vienna?
How much does it rain in New Vienna in December?
How much does it snow in New Vienna in December?
What is the month with the shortest days in New Vienna?
How many hours of daylight does New Vienna have in December?
What time are sunrise and sunset in December in New Vienna?
How long on average sun shines in December in New Vienna?
When is the lowest UV index in New Vienna?
What is the UV index reading in December in New Vienna?
Average temperature in December
New Vienna, IA
- Average high temperature in December: 31.3°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
New Vienna, IA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
New Vienna, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
New Vienna, IA
- Average humidity in December: 83%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in December
New Vienna, IA
- Average rainfall in December: 1.69"
The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
New Vienna, IA
- Average rainfall days in December: 7.5 days
The months with the highest number of rainy days are May and June (19.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
New Vienna, IA
- Average snowfall in December: 4.37"
The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
New Vienna, IA
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
New Vienna, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
New Vienna, IA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in December
New Vienna, IA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
New Vienna, IA
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in December
New Vienna, IA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
New Vienna, Iowa, USA
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