December weather forecastLomza, Poland
December
Weather in December
December, the first month of the winter in Lomza, is also an icy month, with an average temperature fluctuating between -1.9°C (28.6°F) and 1.4°C (34.5°F).Temperature
December's arrival aligns with a minor decrease in average high-temperatures, from November's frosty 6.1°C (43°F) to a cold 1.4°C (34.5°F). During December, Lomza's nights hold steady with an average temperature of -1.9°C (28.6°F), barely dropping from the daytime highs.Humidity
In Lomza, the average relative humidity in December is 89%.Rainfall
In Lomza, Poland, in December, during 8.3 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, in Lomza, Poland, there are 130.4 rainfall days, and 284mm (11.18") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Lomza, Poland, in December, snow falls for 11.3 days, with typically accumulated 49mm (1.93") of snow. Throughout the year, there are 54.2 snowfall days, and 237mm (9.33") of snow is accumulated.Daylight
With an average of 7h and 36min of daylight, December has the shortest days of the year.On the first day of December in Lomza, sunrise is at 07:23 and sunset at 15:18. On the last day of the month, sunrise is at 07:45 and sunset at 15:23 CET.
Sunshine
In Lomza, the average sunshine in December is 2.7h.UV index
January, 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 minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 1 during December translates into the following directions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lomza, Poland
- Average high temperature in December: 1.4°C
The warmest month (with the highest average high temperature) is July (24.3°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in December: -1.9°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is January (-4.6°C).
Average pressure in December
Lomza, Poland
- Average pressure in December: 1015.3mbar
The month with the highest atmospheric pressure is October (1017.9mbar).
The month with the lowest atmospheric pressure is July (1013.2mbar).
Average wind speed in December
Lomza, Poland
- Average wind speed in December: 13km/h
The windiest month (with the highest average wind speed) is December (13km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in December
Lomza, Poland
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (69%).
Average rainfall in December
Lomza, Poland
- Average rainfall in December: 19mm
The wettest month (with the highest rainfall) is May (42mm).
The driest months (with the least rainfall) are February and March (14mm).
Average rainfall days in December
Lomza, Poland
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is February (6.2 days).
Average snowfall in December
Lomza, Poland
- Average snowfall in December: 49mm
The month with the highest snowfall is January (75mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in December
Lomza, Poland
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lomza, Poland
- Average daylight in December: 7h and 36min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in December: 2h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).
Average sunshine days in December
Lomza, Poland
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is February (10.9 days).
Average UV index in December
Lomza, Poland
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Lomza, Poland
- Average cloud cover in December: 74
The months with the most cloud cover are January and February (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Lomza, Poland
- Average visibility in December: 8km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January and February (7km).





