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's onset corresponds with a subtle shift in the average high-temperature, slightly moving from an icy 2.3°C (36.1°F) in November to a freezing cold -1.4°C (29.5°F). A minor drop in temperature is observed from daytime highs in Hollola during the nights of December, averaging -5.1°C (22.8°F).Humidity
In December, the average relative humidity in Hollola is 94%.Rainfall
In Hollola, in December, during 8.2 rainfall days, 40mm (1.57") of precipitation is typically accumulated. Throughout the year, in Hollola, there are 118.1 rainfall days, and 394mm (15.51") of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Hollola, Finland. In December, in Hollola, it is snowing for 18.9 days. Throughout December, 189mm (7.44") of snow is accumulated. In Hollola, during the entire year, snow falls for 93.7 days and aggregates up to 918mm (36.14") of snow.Daylight
With an average of 5h and 42min of daylight, December has the shortest days of the year.On the first day of December in Hollola, Finland, sunrise is at 09:02 and sunset at 15:11. On the last day of the month, sunrise is at 09:29 and sunset at 15:12 EET.
Sunshine
The months with the least sunshine are January and December, with an average of 1.5h of sunshine.UV index
The months with the lowest UV index in Hollola, Finland, are January through March, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Hollola?
What is the average humidity in December in Hollola?
How many days does it rain in December in Hollola?
How much does it snow in Hollola in December?
What is the month with the shortest days in Hollola?
What is the average length of the day in December in Hollola?
When is the sunrise / sunset in December in Hollola?
What is the month with the least sunshine in Hollola?
How many hours of sunshine does Hollola have in December?
When is the lowest UV index in Hollola?
What is the UV index intensity in December in Hollola?
Average temperature in December
Hollola, Finland
- Average high temperature in December: -1.4°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (-4.5°C).
- Average low temperature in December: -5.1°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is January (-8.9°C).
Average pressure in December
Hollola, Finland
- Average pressure in December: 1008.4mbar
The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008.4mbar).
Average wind speed in December
Hollola, Finland
- Average wind speed in December: 12km/h
The windiest month (with the highest average wind speed) is December (12km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in December
Hollola, Finland
- Average humidity in December: 94%
The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (67%).
Average rainfall in December
Hollola, Finland
- Average rainfall in December: 40mm
The wettest month (with the highest rainfall) is July (46mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in December
Hollola, Finland
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Hollola, Finland
- Average snowfall in December: 189mm
The month with the highest snowfall is January (196mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in December
Hollola, Finland
- Average snowfall days in December: 18.9 days
The months with the highest number of snowfall days are January and December (18.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Hollola, Finland
- Average daylight in December: 5h and 4min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in December: 1h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are January and December (Average sunshine: 1h and 30min).
Average sunshine days in December
Hollola, Finland
- Average sunshine days in December: 8.4 days
The months with the most sunshine days are May and August (17.6 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in December
Hollola, 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
Hollola, Finland
- Average cloud cover in December: 80
The months with the most cloud cover are January and February (Cloud cover 81).
The month with the least cloud cover is August (Cloud cover 44).
Average visibility in December
Hollola, 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).
