December weather forecastDanbury, IA
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Danbury, Iowa, with an average temperature fluctuating between 19.9°F (-6.7°C) and 30.2°F (-1°C).Temperature
As December arrives, Danbury's weather displays a notable decrease in high-temperatures, falling from November's chilly 45.1°F (7.3°C) to a subzero cold 30.2°F (-1°C). Danbury's average low-temperature is measured at 19.9°F (-6.7°C) during December.Humidity
In December, the average relative humidity is 81%.Rainfall
In December, the rain falls for 3.1 days. Throughout December, 0.51" (13mm) of precipitation is accumulated. In Danbury, during the entire year, the rain falls for 97 days and collects up to 10.12" (257mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Danbury, during December, snow falls for 7.2 days and regularly aggregates up to 0.71" (18mm) of snow. Throughout the year, there are 30.1 snowfall days, and 4.49" (114mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:32 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:51 am and sunset at 5:00 pm CST.
Sunshine
In Danbury, the average sunshine in December is 4.7h.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 2 in December transforms into this advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Danbury, IA
- Average high temperature in December: 30.2°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 19.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Danbury, IA
- 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 (29.87"Hg).
Average wind speed in December
Danbury, IA
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Danbury, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and October (67%).
Average rainfall in December
Danbury, IA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in December
Danbury, IA
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is May (13.8 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in December
Danbury, IA
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Danbury, IA
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (7.7 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
Danbury, IA
- Average daylight in December: 9h and 12min
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 42min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Danbury, IA
- Average sunshine days in December: 22.9 days
The month with the most sunshine days is November (23 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in December
Danbury, 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 and February (UV index 1).
Average cloud cover in December
Danbury, IA
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Danbury, IA
- 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).
