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 involves a decrease in temperature, down from a frosty 46.8°F (8.2°C) in November to a cold 33.8°F (1°C). Valeria in December anticipates an average nighttime temperature of 22.1°F (-5.5°C).Humidity
The average relative humidity in December is 80%.Rainfall
In Valeria, during December, the rain falls for 4.3 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Valeria, during the entire year, the rain falls for 104.4 days and collects up to 10.71" (272mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Valeria. In Valeria, during December, snow falls for 5.6 days and regularly aggregates up to 0.63" (16mm) of snow. Throughout the year, in Valeria, there are 27.7 snowfall days, and 4.61" (117mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:40 am and sunset at 4:52 pm CST.
Sunshine
The average sunshine in December in Valeria is 4.8h.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 exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December leads to these advisories:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Valeria?
What is the average humidity in December in Valeria?
How much does it rain in Valeria in December?
How many days does it snow in December in Valeria?
What is the month with the shortest days in Valeria?
How many hours of daylight does Valeria have in December?
What time are sunrise and sunset in December in Valeria?
How long on average sun shines in December in Valeria?
What are the months with the lowest UV index in Valeria?
What is the UV index reading in December in Valeria?
Average temperature in December
Valeria, IA
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in December: 22.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Valeria, 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
Valeria, IA
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are January and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in December
Valeria, 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
Valeria, IA
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Valeria, IA
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Valeria, IA
- Average snowfall in December: 0.63"
The month with the highest snowfall is January (1.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Valeria, IA
- Average snowfall days in December: 5.6 days
The month with the highest number of snowfall days is February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Valeria, 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 5min
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 12min).
Average sunshine days in December
Valeria, IA
- Average sunshine days in December: 22.5 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in December
Valeria, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (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
Valeria, 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
Valeria, 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).
Valeria, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location