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
December
Weather in December
Temperature
December indicates a minor shift in the average high-temperature, from November's subzero cold -1.6°C (29.1°F) to a still freezing cold -4.8°C (23.4°F). A modest nighttime temperature average of -9.6°C (14.7°F) characterizes December.Humidity
In December, the average relative humidity in Ylitornio is 95%.Rainfall
The months with the most rainfall in Ylitornio are July and December, with an average 47mm (1.85") of precipitation.Snowfall
January through June, September through December are months with snowfall. December is the month with the most snowfall in Ylitornio. Snow falls for 20.5 days and accumulates 319mm (12.56") of snow.Daylight
The month with the shortest days is December, with an average of 2h and 54min of daylight.On the first day of December, sunrise is at 10:19 and sunset at 14:09. On the last day of the month, sunrise is at 11:01 and sunset at 13:55 EET.
Sunshine
With an average of 1.1h of sunshine, December has the least sunshine of the year.UV index
January through March, October through December, with an average maximum UV index of 1, are months with the lowest UV index in Ylitornio, Finland. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, an average UV index of 1 transforms into the following instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Ylitornio?
What is the average humidity in December in Ylitornio?
What is the wettest month in Ylitornio?
How much does it rain in Ylitornio in December?
What is the snowiest month in Ylitornio?
How many days does it snow in December in Ylitornio?
What is the month with the shortest days in Ylitornio?
What is the average length of the day in December in Ylitornio?
What time are sunrise and sunset in December in Ylitornio?
What is the month with the least sunshine in Ylitornio?
How many hours of sunshine does Ylitornio have in December?
When is the lowest UV index in Ylitornio?
How high is the UV index in December in Ylitornio?
Average temperature in December
Ylitornio, Finland
- Average high temperature in December: -4.8°C
The warmest month (with the highest average high temperature) is July (19.8°C).
The month with the lowest average high temperature is January (-8.2°C).
- Average low temperature in December: -9.6°C
The month with the highest average low temperature is July (10.9°C).
The coldest month (with the lowest average low temperature) is January (-13.8°C).
Average pressure in December
Ylitornio, Finland
- Average pressure in December: 1004.8mbar
The month with the highest atmospheric pressure is May (1014mbar).
The month with the lowest atmospheric pressure is December (1004.8mbar).
Average wind speed in December
Ylitornio, Finland
- Average wind speed in December: 10.2km/h
The windiest month (with the highest average wind speed) is March (10.8km/h).
The calmest month (with the lowest average wind speed) is April (9.2km/h).
Average humidity in December
Ylitornio, Finland
- Average humidity in December: 95%
The months with the highest relative humidity are January and February (96%).
The month with the lowest relative humidity is June (65%).
Average rainfall in December
Ylitornio, Finland
- Average rainfall in December: 47mm
The wettest months (with the highest rainfall) are July and December (47mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in December
Ylitornio, Finland
- Average rainfall days in December: 4.4 days
The month with the highest number of rainy days is July (15.6 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in December
Ylitornio, Finland
- Average snowfall in December: 319mm
The month with the highest snowfall is December (319mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Ylitornio, Finland
- Average snowfall days in December: 20.5 days
The month with the highest number of snowfall days is December (20.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Ylitornio, Finland
- Average daylight in December: 2h and 5min
The month with the longest days is May (Average daylight: 19h and 30min).
The month with the shortest days is December (Average daylight: 2h and 54min).
- Average sunshine in December: 1h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in December
Ylitornio, Finland
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is October (16 days).
The month with the least sunshine days is April (7.6 days).
Average UV index in December
Ylitornio, Finland
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in December
Ylitornio, Finland
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 47).
Average visibility in December
Ylitornio, Finland
- Average visibility in December: 5km
The months with the highest visibility are May, June and July (9km).
The months with the lowest visibility are January, February, March, April and December (5km).
