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
Setting in of December comes with a decrease in the average high-temperature, moving from a frosty 49.3°F (9.6°C) in November to a cold 35.1°F (1.7°C). Bartlett records a consistent low-temperature of 22.6°F (-5.2°C) during December nights.Humidity
In Bartlett, the average relative humidity in December is 77%.Rainfall
In Bartlett, during December, the rain falls for 5.1 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, in Bartlett, there are 122.8 rainfall days, and 26.69" (678mm) of precipitation is accumulated.Snowfall
Months with snowfall in Bartlett are January through May, October through December. In Bartlett, in December, during 5.9 snowfall days, 1.61" (41mm) of snow is typically accumulated. In Bartlett, during the entire year, snow falls for 28.2 days and aggregates up to 10.91" (277mm) of snow.Daylight
The month with the shortest days in Bartlett, Iowa, is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:29 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:05 pm CST.
Sunshine
In Bartlett, the average sunshine in December is 5h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Bartlett. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. 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 Bartlett in December?
What is the average humidity in December in Bartlett?
How much does it rain in Bartlett in December?
How many days does it snow in December in Bartlett?
What is the month with the shortest days in Bartlett?
How many hours of daylight does Bartlett have in December?
When is the sunrise / sunset in December in Bartlett?
How many hours of sunshine does Bartlett have in December?
When is the lowest UV index in Bartlett?
What is the UV index intensity in December in Bartlett?
Average temperature in December
Bartlett, IA
- Average high temperature in December: 35.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 22.6°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in December
Bartlett, 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 (29.86"Hg).
Average wind speed in December
Bartlett, IA
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in December
Bartlett, IA
- Average humidity in December: 77%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Bartlett, IA
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in December
Bartlett, IA
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in December
Bartlett, IA
- Average snowfall in December: 1.61"
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
Bartlett, IA
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bartlett, IA
- Average daylight in December: 9h and 2min
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 18min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Bartlett, IA
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in December
Bartlett, 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
Bartlett, IA
- Average cloud cover in December: 45
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Bartlett, 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).
Bartlett, Iowa, USA
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