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
Katalla experiences an average high-temperature of a freezing cold 31.5°F (-0.3°C) in December, subtly different from November's 34.5°F (1.4°C). December's average low-temperature in Katalla is 26.2°F (-3.2°C), reflecting a minor difference from the day's peak temperatures.Humidity
In December, the average relative humidity is 81%.Rainfall
In Katalla, in December, during 14.5 rainfall days, 8.98" (228mm) of precipitation is typically accumulated. In Katalla, during the entire year, the rain falls for 191.3 days and collects up to 72.4" (1839mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Katalla, Alaska. December is the month with the most snowfall. Snow falls for 12.9 days and accumulates 17.76" (451mm) of snow.Daylight
December has the shortest days of the year in Katalla, with an average of 6h and 0min of daylight.On the first day of the month, sunrise is at 9:16 am and sunset at 3:38 pm. On the last day of December, sunrise is at 9:42 am and sunset at 3:41 pm AKST.
Sunshine
December has the least sunshine of the year in Katalla, Alaska, with an average of 2.1h of sunshine.UV index
The months with the lowest UV index are November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is it in Katalla in December?
What is the average humidity in December in Katalla?
How many days does it rain in December in Katalla?
When does it snow the most in Katalla?
How much does it snow in Katalla in December?
What is the month with the shortest days in Katalla?
How many hours of daylight does Katalla have in December?
When is the sunrise / sunset in December in Katalla?
What is the month with the least sunshine in Katalla?
How many hours of sunshine does Katalla have in December?
When is the lowest UV index in Katalla?
What is the UV index reading in December in Katalla?
Average temperature in December
Katalla, AK
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (58.6°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in December
Katalla, AK
- Average pressure in December: 29.68"Hg
The month with the highest atmospheric pressure is July (30"Hg).
The month with the lowest atmospheric pressure is November (29.65"Hg).
Average wind speed in December
Katalla, AK
- Average wind speed in December: 12mph
The windiest months (with the highest average wind speed) are January and November (12.1mph).
The calmest month (with the lowest average wind speed) is June (5.2mph).
Average humidity in December
Katalla, AK
- Average humidity in December: 81%
The month with the highest relative humidity is August (84%).
The month with the lowest relative humidity is November (75%).
Average rainfall in December
Katalla, AK
- Average rainfall in December: 8.98"
The wettest month (with the highest rainfall) is October (9.09").
The driest month (with the least rainfall) is June (2.72").
Average rainfall days in December
Katalla, AK
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is February (9.6 days).
Average snowfall in December
Katalla, AK
- Average snowfall in December: 17.76"
The month with the highest snowfall is December (17.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Katalla, AK
- Average snowfall days in December: 12.9 days
The month with the highest number of snowfall days is December (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Katalla, AK
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
- Average sunshine in December: 2h and 1min
The months with the most sunshine are May, June and July (Average sunshine: 7h and 36min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in December
Katalla, AK
- Average sunshine days in December: 9.3 days
The month with the most sunshine days is July (12.1 days).
The month with the least sunshine days is September (8 days).
Average UV index in December
Katalla, AK
- Average UV index in December: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are November and December (UV index 1).
Average cloud cover in December
Katalla, AK
- Average cloud cover in December: 68
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is May (Cloud cover 57).
Average visibility in December
Katalla, AK
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, September, October and November (6mi).
The months with the lowest visibility are January, August and December (5mi).
Katalla, Alaska, USA
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