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 signals a clear decrease in the average high-temperature, dropping from November's chilly 43.3°F (6.3°C) to a freezing cold 27.5°F (-2.5°C). Ashton in December experiences a low-temperature average of 16.3°F (-8.7°C).Humidity
The average relative humidity in December in Ashton is 85%.Rainfall
In Ashton, Iowa, in December, during 4.9 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Ashton, during the entire year, the rain falls for 128.1 days and collects up to 24.17" (614mm) of precipitation.Snowfall
Months with snowfall in Ashton, Iowa, are January through May, October through December. In Ashton, Iowa, during December, snow falls for 10 days and regularly aggregates up to 3.19" (81mm) of snow. Throughout the year, in Ashton, there are 48.8 snowfall days, and 19.21" (488mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:36 am and sunset at 4:48 pm. On the last day of December, sunrise is at 7:55 am and sunset at 4:57 pm CST.
Sunshine
In Ashton, Iowa, the average sunshine in December is 4.5h.UV index
In Ashton, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold is December in Ashton?
What is the average humidity in December in Ashton?
How much does it rain in Ashton in December?
How many days does it snow in December in Ashton?
What is the month with the shortest days in Ashton?
What is the average length of the day in December in Ashton?
When is the sunrise / sunset in December in Ashton?
How many hours of sunshine does Ashton have in December?
What is the UV index reading in December in Ashton?
Average temperature in December
Ashton, IA
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 16.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in December
Ashton, IA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Ashton, IA
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Ashton, IA
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Ashton, IA
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Ashton, IA
- Average rainfall days in December: 4.9 days
The months with the highest number of rainy days are May and June (17.8 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in December
Ashton, IA
- Average snowfall in December: 3.19"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ashton, IA
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ashton, 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: 4h and 3min
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 6min).
Average sunshine days in December
Ashton, IA
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in December
Ashton, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Ashton, IA
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Ashton, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Ashton, Iowa, USA
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