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
The arrival of December corresponds with a temperature reduction, down from November's frosty 48.4°F (9.1°C) to a cold 35.6°F (2°C). Millerton reports an average nighttime low-temperature of 23.5°F (-4.7°C) in December.Humidity
In December, the average relative humidity in Millerton, Iowa, is 79%.Rainfall
The months with the least rainfall are January and December Rain falls for 5.5 days and accumulates 0.71" (18mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 5.7 days. Throughout December, 0.98" (25mm) of snow is accumulated. In Millerton, during the entire year, snow falls for 28.4 days and aggregates up to 11.34" (288mm) of snow.Daylight
December has the shortest days of the year in Millerton, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:18 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:55 pm CST.
Sunshine
In December, the average sunshine is 4.8h.UV index
The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during December translates into these guidelines:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Millerton?
What is the average humidity in December in Millerton?
What is the driest month in Millerton?
How many days does it rain in December in Millerton?
How many days does it snow in December in Millerton?
What is the month with the shortest days in Millerton?
What is the average length of the day in December in Millerton?
What time are sunrise and sunset in December in Millerton?
How long on average sun shines in December in Millerton?
What is the UV index intensity in December in Millerton?
Average temperature in December
Millerton, IA
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in December: 23.5°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in December
Millerton, 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
Millerton, IA
- Average wind speed in December: 10mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Millerton, IA
- Average humidity in December: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Millerton, IA
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is June (3.31").
The driest months (with the least rainfall) are January and December (0.71").
Average rainfall days in December
Millerton, IA
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in December
Millerton, IA
- Average snowfall in December: 0.98"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Millerton, IA
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Millerton, IA
- Average daylight in December: 9h and 2min
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 5min
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
Millerton, IA
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Millerton, 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
Millerton, IA
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in December
Millerton, 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).
Millerton, Iowa, USA
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