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
A shift in the average high-temperature occurs in December, reducing from a frosty 48.6°F (9.2°C) in November to a cold 35.2°F (1.8°C). Athelstan's average low-temperature is measured at a freezing cold 22.8°F (-5.1°C) during December.Humidity
The average relative humidity in December is 78%.Rainfall
In Athelstan, in December, it is raining for 4.6 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, there are 123.8 rainfall days, and 21.93" (557mm) of precipitation is accumulated.Snowfall
Months with snowfall in Athelstan are January through May, October through December. In December, in Athelstan, it is snowing for 5.4 days. Throughout December, 1.34" (34mm) of snow is accumulated. Throughout the year, in Athelstan, there are 28.8 snowfall days, and 10.51" (267mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:01 pm CST.
Sunshine
In Athelstan, the average sunshine in December is 5h.UV index
In December, the average daily maximum UV index in Athelstan, Iowa, is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is it in Athelstan in December?
What is the average humidity in December in Athelstan?
How many days does it rain in December in Athelstan?
How many days does it snow in December in Athelstan?
What is the month with the shortest days in Athelstan?
How many hours of daylight does Athelstan have in December?
When is the sunrise / sunset in December in Athelstan?
How many hours of sunshine does Athelstan have in December?
What is the UV index intensity in December in Athelstan?
Average temperature in December
Athelstan, IA
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Athelstan, IA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Athelstan, IA
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Athelstan, IA
- Average humidity in December: 78%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Athelstan, IA
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in December
Athelstan, IA
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (3.9 days).
Average snowfall in December
Athelstan, IA
- Average snowfall in December: 1.34"
The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Athelstan, IA
- Average snowfall days in December: 5.4 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Athelstan, IA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 0min
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 36min).
Average sunshine days in December
Athelstan, IA
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in December
Athelstan, 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
Athelstan, IA
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and September (Cloud cover 28).
Average visibility in December
Athelstan, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Athelstan, Iowa, USA
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