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
Lisbon's December weather features a mild decline in high-temperatures, reducing from a frosty 45.3°F (7.4°C) in November to a wintry 33.1°F (0.6°C). Throughout December, Lisbon's nights cool down to an average of 22.3°F (-5.4°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In December, in Lisbon, Iowa, the rain falls for 6.8 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. Throughout the year, in Lisbon, there are 147.9 rainfall days, and 31.57" (802mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Lisbon, during December, snow falls for 9.5 days and regularly aggregates up to 3.11" (79mm) of snow. In Lisbon, during the entire year, snow falls for 44 days and aggregates up to 18.35" (466mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:14 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:44 pm CST.
Sunshine
In Lisbon, the average sunshine in December is 4.3h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Lisbon have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Lisbon, IA
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in December: 22.3°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure in December
Lisbon, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Lisbon, IA
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Lisbon, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Lisbon, IA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Lisbon, IA
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (19 days).
The months with the least rainy days are January and February (5.2 days).
Average snowfall in December
Lisbon, IA
- Average snowfall in December: 3.11"
The month with the highest snowfall is January (5.79").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Lisbon, IA
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lisbon, 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 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Lisbon, IA
- Average sunshine days in December: 16.8 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in December
Lisbon, IA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Lisbon, IA
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in December
Lisbon, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Lisbon, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location