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
A shift in Saint Olaf's weather is observed as November turns into December, with the average high temperature reducing from a chilly 43.2°F (6.2°C) to a subzero cold 30°F (-1.1°C). In December, the nighttime temperature in Saint Olaf lowers to an average of 19.9°F (-6.7°C).Humidity
In Saint Olaf, the average relative humidity in December is 83%.Rainfall
In Saint Olaf, in December, during 5.2 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Saint Olaf, during the entire year, the rain falls for 138 days and collects up to 29.21" (742mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Saint Olaf, in December, during 10.5 snowfall days, 3.39" (86mm) of snow is typically accumulated. Throughout the year, in Saint Olaf, there are 48.5 snowfall days, and 19.76" (502mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:17 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:41 pm CST.
Sunshine
The average sunshine in December is 4.1h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is it in Saint Olaf in December?
What is the average humidity in December in Saint Olaf?
How many days does it rain in December in Saint Olaf?
How many days does it snow in December in Saint Olaf?
What is the month with the shortest days in Saint Olaf?
How many hours of daylight does Saint Olaf have in December?
When are sunrise and sunset in December in Saint Olaf?
How long on average sun shines in December in Saint Olaf?
When is the lowest UV index in Saint Olaf?
How high is the UV index in December in Saint Olaf?
Average temperature in December
Saint Olaf, IA
- Average high temperature in December: 30°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 (23.5°F).
- Average low temperature in December: 19.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure in December
Saint Olaf, IA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Saint Olaf, IA
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Saint Olaf, IA
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Saint Olaf, IA
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in December
Saint Olaf, IA
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (3.6 days).
Average snowfall in December
Saint Olaf, IA
- Average snowfall in December: 3.39"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saint Olaf, IA
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saint Olaf, IA
- Average daylight in December: 9h and 1min
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 6min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Saint Olaf, IA
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.9 days).
Average UV index in December
Saint Olaf, IA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Saint Olaf, 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 31).
Average visibility in December
Saint Olaf, IA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Saint Olaf, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location
