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
Start of December brings a shift in the average high-temperature, falling from November's moderate 55.9°F (13.3°C) to a chilly 45°F (7.2°C). December witnesses an average nighttime temperature of 30.7°F (-0.7°C).Humidity
In Altoona, the average relative humidity in December is 71%.Rainfall
In Altoona, in December, during 5.4 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. In Altoona, during the entire year, the rain falls for 129.4 days and collects up to 27.87" (708mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Altoona, during December, snow falls for 1.8 days and regularly aggregates up to 0.47" (12mm) of snow. Throughout the year, there are 9.5 snowfall days, and 3.23" (82mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 5:04 pm. On the last day of December, in Altoona, sunrise is at 7:37 am and sunset at 5:14 pm CST.
Sunshine
The average sunshine in December is 5.8h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December in Altoona?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index in Altoona?
How high is the UV index in December?
Average temperature in December
Altoona, KS
- Average high temperature in December: 45°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (42.8°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in December
Altoona, KS
- 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 (29.89"Hg).
Average wind speed in December
Altoona, KS
- Average wind speed in December: 9.9mph
The windiest months (with the highest average wind speed) are March and April (11.2mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in December
Altoona, KS
- Average humidity in December: 71%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Altoona, KS
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in December
Altoona, KS
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is December (5.4 days).
Average snowfall in December
Altoona, KS
- Average snowfall in December: 0.47"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Altoona, KS
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Altoona, KS
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 5h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in December
Altoona, KS
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is December (23.2 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in December
Altoona, KS
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Altoona, KS
- Average cloud cover in December: 36
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are June, July and August (Cloud cover 24).
Average visibility in December
Altoona, KS
- 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).
Altoona, Kansas, USA
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