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 weather is marked by a drop in the average high-temperature, falling from a cold 41.4°F (5.2°C) in November to a subzero cold 27.7°F (-2.4°C). During the month of December, Ridgeway's nighttime temperature lowers to an average of 17.4°F (-8.1°C).Humidity
In December, the average relative humidity is 87%.Rainfall
In Ridgeway, in December, during 5.6 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Ridgeway, Iowa, during the entire year, the rain falls for 148.5 days and collects up to 29.69" (754mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Ridgeway, in December, during 12.5 snowfall days, 4.49" (114mm) of snow is typically accumulated. Throughout the year, there are 61.5 snowfall days, and 25.43" (646mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:21 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 4:42 pm CST.
Sunshine
In December, the average sunshine is 3.9h.UV index
The months with the lowest UV index are February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 translates into these guidelines:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Ridgeway have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Ridgeway, IA
- Average high temperature in December: 27.7°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in December: 17.4°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in December
Ridgeway, 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 (29.89"Hg).
Average wind speed in December
Ridgeway, IA
- Average wind speed in December: 10.1mph
The windiest months (with the highest average wind speed) are January and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in December
Ridgeway, IA
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Ridgeway, IA
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is June (4.8").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
Ridgeway, IA
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is June (20.3 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Ridgeway, IA
- Average snowfall in December: 4.49"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ridgeway, IA
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ridgeway, IA
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Ridgeway, IA
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (7.1 days).
Average UV index in December
Ridgeway, IA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are February, November and December (UV index 1).
Average cloud cover in December
Ridgeway, IA
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Ridgeway, IA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).
Ridgeway, Iowa, USA
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