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
The average high-temperature drops in December, from November's chilly 46.8°F (8.2°C) to a cold 33.3°F (0.7°C). Throughout December, an average low-temperature of 21.7°F (-5.7°C) is experienced.Humidity
In Dexter, the average relative humidity in December is 79%.Rainfall
In Dexter, Iowa, in December, it is raining for 4.1 days, with typically 0.67" (17mm) of accumulated precipitation. In Dexter, during the entire year, the rain falls for 117.3 days and collects up to 19.09" (485mm) of precipitation.Snowfall
Months with snowfall in Dexter are January through May, October through December. In Dexter, during December, snow falls for 6 days and regularly aggregates up to 1.3" (33mm) of snow. In Dexter, during the entire year, snow falls for 31.7 days and aggregates up to 9.29" (236mm) of snow.Daylight
The month with the shortest days in Dexter is December, with an average of 9h and 12min of daylight.On the first day of December in Dexter, sunrise is at 7:24 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 4:57 pm CST.
Sunshine
The average sunshine in December is 4.8h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Dexter. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. 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 Dexter in December?
What is the average humidity in December in Dexter?
How much does it rain in Dexter in December?
How many days does it snow in December in Dexter?
What is the month with the shortest days in Dexter?
What is the average length of the day in December in Dexter?
When are sunrise and sunset in December in Dexter?
How long on average sun shines in December in Dexter?
What is the month with the lowest UV index in Dexter?
What is the UV index intensity in December in Dexter?
Average temperature in December
Dexter, IA
- Average high temperature in December: 33.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 21.7°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 (14.5°F).
Average pressure in December
Dexter, 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 (29.88"Hg).
Average wind speed in December
Dexter, IA
- Average wind speed in December: 10.3mph
The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Dexter, IA
- Average humidity in December: 79%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Dexter, IA
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Dexter, IA
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in December
Dexter, IA
- Average snowfall in December: 1.3"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dexter, IA
- Average snowfall days in December: 6 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dexter, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
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 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Dexter, IA
- Average sunshine days in December: 22 days
The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in December
Dexter, IA
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Dexter, IA
- Average cloud cover in December: 49
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 30).
Average visibility in December
Dexter, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Dexter, Iowa, USA
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