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
Saylorville observes a minor decrease in the average high-temperature with the arrival of December, falling from November's frosty 46.8°F (8.2°C) to a wintry 34°F (1.1°C). Saylorville sees an average low-temperature of 22.1°F (-5.5°C) during December.Humidity
The average relative humidity in December is 79%.Rainfall
In Saylorville, during December, the rain falls for 5.2 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Saylorville, Iowa, during the entire year, the rain falls for 129.8 days and collects up to 25.91" (658mm) of precipitation.Snowfall
Months with snowfall in Saylorville are January through May, October through December. In December, in Saylorville, it is snowing for 7.7 days. Throughout December, 1.97" (50mm) of snow is accumulated. Throughout the year, there are 36.2 snowfall days, and 13.94" (354mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Saylorville.On the first day of December in Saylorville, sunrise is at 7:22 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:54 pm CST.
Sunshine
The average sunshine in December is 4.7h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 2 in December translates into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Saylorville in December?
What is the average humidity in December in Saylorville?
How many days does it rain in December in Saylorville?
How much does it snow in Saylorville in December?
What is the month with the shortest days in Saylorville?
What is the average length of the day in December in Saylorville?
What time are sunrise and sunset in December in Saylorville?
How many hours of sunshine does Saylorville have in December?
What is the month with the lowest UV index in Saylorville?
How high is the UV index in December in Saylorville?
Average temperature in December
Saylorville, IA
- Average high temperature in December: 34°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Saylorville, 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 (29.88"Hg).
Average wind speed in December
Saylorville, IA
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Saylorville, 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 (70%).
Average rainfall in December
Saylorville, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Saylorville, IA
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Saylorville, IA
- Average snowfall in December: 1.97"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Saylorville, IA
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Saylorville, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 4min
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
Saylorville, IA
- Average sunshine days in December: 18.7 days
The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is June (11 days).
Average UV index in December
Saylorville, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Saylorville, IA
- Average cloud cover in December: 50
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in December
Saylorville, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Saylorville, Iowa, USA
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