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
In Petäjävesi, entering December brings a subtle temperature decrement, reducing from November's icy 1.5°C (34.7°F) to a subzero cold -2.6°C (27.3°F). Petäjävesi's average temperature throughout the nights in December exhibits a minor decrease from daytime highs, stabilizing at -5.9°C (21.4°F).Humidity
In December, the average relative humidity in Petäjävesi is 94%.Rainfall
In Petäjävesi, Finland, during December, the rain falls for 6 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, there are 121.2 rainfall days, and 403mm (15.87") of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. December is the month with the most snowfall. Snow falls for 19.3 days and accumulates 185mm (7.28") of snow.Daylight
With an average of 5h and 12min of daylight, December has the shortest days of the year in Petäjävesi.On the first day of December, sunrise is at 09:15 and sunset at 15:00. On the last day of the month, sunrise is at 09:45 and sunset at 14:59 EET.
Sunshine
December has the least sunshine of the year, with an average of 0.8h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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?
What is the snowiest month?
How many days 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?
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
Petäjävesi, Finland
- Average high temperature in December: -2.6°C
The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-5.5°C).
- Average low temperature in December: -5.9°C
The month with the highest average low temperature is July (12.2°C).
The coldest month (with the lowest average low temperature) is January (-9.7°C).
Average pressure in December
Petäjävesi, Finland
- Average pressure in December: 1007.6mbar
The month with the highest atmospheric pressure is May (1014.5mbar).
The month with the lowest atmospheric pressure is December (1007.6mbar).
Average wind speed in December
Petäjävesi, Finland
- Average wind speed in December: 12.5km/h
The windiest month (with the highest average wind speed) is December (12.5km/h).
The calmest month (with the lowest average wind speed) is July (9.6km/h).
Average humidity in December
Petäjävesi, Finland
- Average humidity in December: 94%
The months with the highest relative humidity are January and February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall in December
Petäjävesi, Finland
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is July (50mm).
The driest months (with the least rainfall) are February and March (23mm).
Average rainfall days in December
Petäjävesi, Finland
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Petäjävesi, Finland
- Average snowfall in December: 185mm
The month with the highest snowfall is December (185mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in December
Petäjävesi, Finland
- Average snowfall days in December: 19.3 days
The month with the highest number of snowfall days is December (19.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Petäjävesi, Finland
- Average daylight in December: 5h and 1min
The month with the longest days is June (Average daylight: 19h and 42min).
The month with the shortest days is December (Average daylight: 5h and 12min).
- Average sunshine in December: 0h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 0h and 48min).
Average sunshine days in December
Petäjävesi, Finland
- Average sunshine days in December: 9.6 days
The month with the most sunshine days is May (16.3 days).
The month with the least sunshine days is December (9.6 days).
Average UV index in December
Petäjävesi, 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, March, November and December (UV index 1).
Average cloud cover in December
Petäjävesi, Finland
- Average cloud cover in December: 80
The month with the most cloud cover is January (Cloud cover 83).
The months with the least cloud cover are July and August (Cloud cover 45).
Average visibility in December
Petäjävesi, Finland
- Average visibility in December: 6km
The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).
