December weather forecastMarysville, IA
December
Weather in December
The first month of the winter, December, is also a wintry month in Marysville, Iowa, with an average temperature fluctuating between 23°F (-5°C) and 34.7°F (1.5°C).Temperature
In December, the meteorological conditions alter, with the average high-temperature shifting from a chilly 47.1°F (8.4°C) in November to an icy 34.7°F (1.5°C). Marysville records a consistent low-temperature of 23°F (-5°C) during December nights.Humidity
In Marysville, the average relative humidity in December is 79%.Rainfall
The months with the least rainfall in Marysville are February and December Rain falls for 5.5 days and accumulates 0.47" (12mm) of rain.Snowfall
January through May, October through December are months with snowfall in Marysville. In Marysville, in December, snow falls for 6.4 days, with typically accumulated 0.75" (19mm) of snow. Throughout the year, there are 30.4 snowfall days, and 6.5" (165mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December in Marysville, Iowa, sunrise is at 7:18 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:53 pm CST.
Sunshine
In Marysville, Iowa, the average sunshine in December is 4.8h.UV index
In Marysville, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Marysville, IA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in December: 23°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in December
Marysville, 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 (29.89"Hg).
Average wind speed in December
Marysville, IA
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in December
Marysville, 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 (71%).
Average rainfall in December
Marysville, IA
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is May (2.24").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in December
Marysville, IA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in December
Marysville, IA
- Average snowfall in December: 0.75"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Marysville, IA
- Average snowfall days in December: 6.4 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Marysville, IA
- Average daylight in December: 9h and 18min
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: 4h and 48min
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 18min).
Average sunshine days in December
Marysville, IA
- Average sunshine days in December: 20.5 days
The months with the most sunshine days are November and December (20.5 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in December
Marysville, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Marysville, IA
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in December
Marysville, 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).
