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
December brings a decrease in the average high-temperature, shifting from a fresh 50°F (10°C) in November to a wintry 39.2°F (4°C). During the nights in December, Poland experiences a consistent average temperature of 28.4°F (-2°C).Humidity
In Poland, the average relative humidity in December is 81%.Rainfall
In Poland, in December, during 9.4 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 151.2 rainfall days, and 22.87" (581mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. The month with the most snowfall is December, when snow falls for 6.6 days and typically aggregates up to 1.81" (46mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:49 am and sunset at 5:24 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 5:34 pm EST.
Sunshine
In December, the average sunshine is 4.3h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December translates into the following guidance:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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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 Poland in December?
What is the snowiest month?
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 in Poland?
What time are sunrise and sunset in December?
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
Poland, IN
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 28.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in December
Poland, IN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Poland, IN
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in December
Poland, IN
- Average humidity in December: 81%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Poland, IN
- Average rainfall in December: 1.61"
The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in December
Poland, IN
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in December
Poland, IN
- Average snowfall in December: 1.81"
The month with the highest snowfall is December (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Poland, IN
- Average snowfall days in December: 6.6 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Poland, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Poland, IN
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in December
Poland, IN
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Poland, IN
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Poland, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Poland, Indiana, USA
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