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 ushers in a slight temperature change, with average high-temperatures reducing from November's frosty 48°F (8.9°C) to a cold 34.9°F (1.6°C). December nights in Lacona experience a consistent temperature drop to a subzero cold 23.2°F (-4.9°C).Humidity
In Lacona, the average relative humidity in December is 79%.Rainfall
In December, the rain falls for 6.1 days. Throughout December, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 131.1 rainfall days, and 25.71" (653mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, in Lacona, it is snowing for 6.4 days. Throughout December, 1.54" (39mm) of snow is accumulated. Throughout the year, there are 33.4 snowfall days, and 13.54" (344mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Lacona, Iowa.On the first day of the month, sunrise is at 7:20 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:54 pm CST.
Sunshine
In Lacona, Iowa, the average sunshine in December is 4.6h.UV index
In December, the average daily maximum UV index in Lacona is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 during December leads to these advisories:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Lacona in December?
What is the average humidity in December in Lacona?
How many days does it rain in December in Lacona?
How much does it snow in Lacona in December?
What is the month with the shortest days in Lacona?
How many hours of daylight does Lacona have in December?
When is the sunrise / sunset in December in Lacona?
How many hours of sunshine does Lacona have in December?
What is the UV index intensity in December in Lacona?
Average temperature in December
Lacona, IA
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in December
Lacona, 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 (29.89"Hg).
Average wind speed in December
Lacona, IA
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Lacona, IA
- Average humidity in December: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Lacona, IA
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in December
Lacona, IA
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in December
Lacona, IA
- Average snowfall in December: 1.54"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lacona, IA
- Average snowfall days in December: 6.4 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lacona, IA
- Average daylight in December: 9h and 2min
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 18min).
- 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 12min).
Average sunshine days in December
Lacona, IA
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Lacona, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Lacona, 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 August (Cloud cover 30).
Average visibility in December
Lacona, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
Lacona, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location