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
December's onset corresponds with a shift in the average high-temperature, moving from a mild 55.4°F (13°C) in November to a frosty 45.5°F (7.5°C). Olmsted's nights in December cool down to an average low-temperature of 33.8°F (1°C).Humidity
The months with the highest humidity are February, March, May and December, with an average relative humidity of 78%.Rainfall
In Olmsted, during December, the rain falls for 10.5 days and regularly aggregates up to 2.91" (74mm) of precipitation. Throughout the year, in Olmsted, there are 156.3 rainfall days, and 36.65" (931mm) of precipitation is accumulated.Snowfall
Months with snowfall in Olmsted are January through April, October through December. In Olmsted, during December, snow falls for 1.5 days and regularly aggregates up to 0.59" (15mm) of snow. In Olmsted, during the entire year, snow falls for 11.5 days and aggregates up to 4.88" (124mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:52 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 4:49 pm CST.
Sunshine
The average sunshine in December in Olmsted is 4.9h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In December, the UV index of 2 transforms into the following advice:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What is the temperature in December in Olmsted?
What are the most humid months in Olmsted?
What is the average humidity in December in Olmsted?
How many days does it rain in December in Olmsted?
How many days does it snow in December in Olmsted?
What is the month with the shortest days in Olmsted?
What is the average length of the day in December in Olmsted?
When is the sunrise / sunset in December in Olmsted?
How many hours of sunshine does Olmsted have in December?
What is the month with the lowest UV index in Olmsted?
How high is the UV index in December in Olmsted?
Average temperature in December
Olmsted, IL
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).
- Average low temperature in December: 33.8°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in December
Olmsted, IL
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Olmsted, IL
- Average wind speed in December: 8.5mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Olmsted, IL
- Average humidity in December: 78%
The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Olmsted, IL
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in December
Olmsted, IL
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in December
Olmsted, IL
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Olmsted, IL
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is February (3.8 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
Olmsted, IL
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Olmsted, IL
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Olmsted, IL
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Olmsted, IL
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in December
Olmsted, IL
- 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).
Olmsted, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location
