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 brings a slight decrease in the average high-temperature, shifting from an icy 3.5°C (38.3°F) in November to a freezing cold -0.2°C (31.6°F). Jeppo's nocturnal December readings average at a still subzero cold -2.5°C (27.5°F), showing little variation from the daytime temperatures.Humidity
In Jeppo, the average relative humidity in December is 87%.Rainfall
In Jeppo, in December, during 7.4 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, there are 134.8 rainfall days, and 453mm (17.83") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Jeppo, in December, snow falls for 13.9 days, with typically accumulated 99mm (3.9") of snow. In Jeppo, Finland, during the entire year, snow falls for 75.8 days and aggregates up to 598mm (23.54") of snow.Daylight
The month with the shortest days is December, with an average of 4h and 48min of daylight.On the first day of December, sunrise is at 09:39 and sunset at 14:58. On the last day of the month, sunrise is at 10:10 and sunset at 14:54 EET.
Sunshine
With an average of 1.1h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 1 suggests this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
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?
When are sunrise and sunset in December in Jeppo?
What is the month with the least sunshine?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Jeppo, Finland
- Average high temperature in December: -0.2°C
The warmest month (with the highest average high temperature) is July (17.6°C).
The months with the lowest average high temperature are January and February (-3.3°C).
- Average low temperature in December: -2.5°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is February (-6.7°C).
Average pressure in December
Jeppo, Finland
- Average pressure in December: 1005.4mbar
The month with the highest atmospheric pressure is May (1014.2mbar).
The month with the lowest atmospheric pressure is December (1005.4mbar).
Average wind speed in December
Jeppo, Finland
- Average wind speed in December: 22.3km/h
The windiest month (with the highest average wind speed) is December (22.3km/h).
The calmest month (with the lowest average wind speed) is July (15.1km/h).
Average humidity in December
Jeppo, Finland
- Average humidity in December: 87%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is June (74%).
Average rainfall in December
Jeppo, Finland
- Average rainfall in December: 37mm
The wettest month (with the highest rainfall) is August (57mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in December
Jeppo, Finland
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (17.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Jeppo, Finland
- Average snowfall in December: 99mm
The month with the highest snowfall is March (147mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Jeppo, Finland
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jeppo, Finland
- Average daylight in December: 4h and 5min
The month with the longest days is June (Average daylight: 20h and 18min).
The month with the shortest days is December (Average daylight: 4h and 48min).
- Average sunshine in December: 1h and 1min
The month with the most sunshine is June (Average sunshine: 13h and 0min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).
Average sunshine days in December
Jeppo, Finland
- Average sunshine days in December: 10.4 days
The month with the most sunshine days is May (16.8 days).
The month with the least sunshine days is December (10.4 days).
Average UV index in December
Jeppo, Finland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Jeppo, Finland
- Average cloud cover in December: 71
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are June and July (Cloud cover 38).
Average visibility in December
Jeppo, Finland
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March and April (8km).
