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 decrease of average high-temperatures is mild in December, with a decline from a chilly 46.2°F (7.9°C) in November to an icy 33.1°F (0.6°C). During the nights in December, Lynnville experiences a consistent average temperature of 22.1°F (-5.5°C).Humidity
In Lynnville, the average relative humidity in December is 80%.Rainfall
In December, the rain falls for 5.7 days. Throughout December, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 117.5 rainfall days, and 13.03" (331mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Lynnville. In Lynnville, in December, snow falls for 6.9 days, with typically accumulated 0.79" (20mm) of snow. In Lynnville, during the entire year, snow falls for 30.7 days and aggregates up to 6.06" (154mm) of snow.Daylight
The month with the shortest days in Lynnville is December, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:51 pm CST.
Sunshine
The average sunshine in December is 4.6h.UV index
In Lynnville, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 during December translates 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. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Lynnville?
What is the average humidity in December in Lynnville?
How many days does it rain in December in Lynnville?
How many days does it snow in December in Lynnville?
What is the month with the shortest days in Lynnville?
What is the average length of the day in December in Lynnville?
When is the sunrise / sunset in December in Lynnville?
How long on average sun shines in December in Lynnville?
What is the UV index intensity in December in Lynnville?
Average temperature in December
Lynnville, IA
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).
Average pressure in December
Lynnville, 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 (29.89"Hg).
Average wind speed in December
Lynnville, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Lynnville, IA
- Average humidity in December: 80%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Lynnville, IA
- Average rainfall in December: 0.51"
The wettest months (with the highest rainfall) are May and June (1.97").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Lynnville, IA
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in December
Lynnville, IA
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (1.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lynnville, IA
- Average snowfall days in December: 6.9 days
The month with the highest number of snowfall days is January (8.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lynnville, IA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Lynnville, IA
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is January (21.1 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in December
Lynnville, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Lynnville, IA
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Lynnville, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Lynnville, Iowa, USA
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