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
During the transition into December, Grotki observes a decrease in the average high-temperature, falling from a chilly 7.5°C (45.5°F) in November to a cold 2.2°C (36°F). Throughout the nights in December, Grotki notes an average low of -1.5°C (29.3°F), a small dip from the daytime peak.Humidity
In December, the average relative humidity in Grotki is 86%.Rainfall
In Grotki, in December, it is raining for 10.4 days, with typically 35mm (1.38") of accumulated precipitation. In Grotki, during the entire year, the rain falls for 144.3 days and collects up to 417mm (16.42") of precipitation.Snowfall
January through May, October through December are months with snowfall. In Grotki, during December, snow falls for 10.6 days and regularly aggregates up to 75mm (2.95") of snow. Throughout the year, in Grotki, there are 52.5 snowfall days, and 398mm (15.67") of snow is accumulated.Daylight
With an average of 7h and 54min of daylight, December has the shortest days of the year in Grotki.On the first day of December in Grotki, sunrise is at 07:20 and sunset at 15:31. On the last day of the month, sunrise is at 07:42 and sunset at 15:37 CET.
Sunshine
The average sunshine in December in Grotki, Poland, is 3.5h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Frequently asked questions
How cold is December in Grotki?
What is the average humidity in December in Grotki?
How many days does it rain in December in Grotki?
How many days does it snow in December in Grotki?
What is the month with the shortest days in Grotki?
How many hours of daylight does Grotki have in December?
What time are sunrise and sunset in December in Grotki?
How long on average sun shines in December in Grotki?
What are the months with the lowest UV index in Grotki?
How high is the UV index in December in Grotki?
Average temperature in December
Grotki, Poland
- Average high temperature in December: 2.2°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (-0.3°C).
- Average low temperature in December: -1.5°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in December
Grotki, Poland
- Average pressure in December: 1017.1mbar
The month with the highest atmospheric pressure is October (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.9mbar).
Average wind speed in December
Grotki, Poland
- Average wind speed in December: 14.1km/h
The windiest month (with the highest average wind speed) is December (14.1km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in December
Grotki, Poland
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Grotki, Poland
- Average rainfall in December: 35mm
The wettest month (with the highest rainfall) is May (59mm).
The driest month (with the least rainfall) is November (22mm).
Average rainfall days in December
Grotki, Poland
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is May (17.7 days).
The months with the least rainy days are January and February (8 days).
Average snowfall in December
Grotki, Poland
- Average snowfall in December: 75mm
The month with the highest snowfall is January (129mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Grotki, Poland
- Average snowfall days in December: 10.6 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grotki, Poland
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Grotki, Poland
- Average sunshine days in December: 11 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is January (9.8 days).
Average UV index in December
Grotki, Poland
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Grotki, Poland
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Grotki, Poland
- Average visibility in December: 8km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).
Grotki, Poland
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