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 start of December signals a clear decrease in the average high-temperature, falling from an icy 42.6°F (5.9°C) in November to a freezing cold 27.7°F (-2.4°C). Miller reports an average low-temperature of 17.4°F (-8.1°C) during the nights of December.Humidity
In December, the average relative humidity in Miller is 86%.Rainfall
In Miller, during December, the rain falls for 5.7 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Miller, Iowa, during the entire year, the rain falls for 136.2 days and collects up to 25.39" (645mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Miller. In Miller, during December, snow falls for 12 days and regularly aggregates up to 3.35" (85mm) of snow. In Miller, during the entire year, snow falls for 55.1 days and aggregates up to 22.05" (560mm) of snow.Daylight
The month with the shortest days in Miller is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:27 am and sunset at 4:40 pm. On the last day of December, in Miller, Iowa, sunrise is at 7:46 am and sunset at 4:49 pm CST.
Sunshine
In Miller, the average sunshine in December is 4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Miller, Iowa. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 1 in December leads to these recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
How cold is December in Miller?
What is the average humidity in December in Miller?
How many days does it rain in December in Miller?
How many days does it snow in December in Miller?
What is the month with the shortest days in Miller?
What is the average length of the day in December in Miller?
When are sunrise and sunset in December in Miller?
How many hours of sunshine does Miller have in December?
What are the months with the lowest UV index in Miller?
How high is the UV index in December in Miller?
Average temperature in December
Miller, IA
- Average high temperature in December: 27.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in December: 17.4°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Miller, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Miller, IA
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in December
Miller, IA
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Miller, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Miller, IA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3 days).
Average snowfall in December
Miller, IA
- Average snowfall in December: 3.35"
The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Miller, IA
- Average snowfall days in December: 12 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Miller, IA
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Miller, IA
- Average sunshine days in December: 15.6 days
The months with the most sunshine days are October and November (17.4 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in December
Miller, IA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Miller, IA
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Miller, IA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
Miller, Iowa, USA
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