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
In Rochester, the average high-temperature in December is relatively the same as in November - a frosty 8.1°C (46.6°F). The average low-temperature, is 4.1°C (39.4°F).Humidity
The most humid month is December, with an average relative humidity of 88%.Rainfall
December is the month with the most rainfall in Rochester, United Kingdom. Rain falls for 15.5 days and accumulates 53mm (2.09") of precipitation.Snowfall
Months with snowfall in Rochester, United Kingdom, are January through March, November and December. In Rochester, during December, snow falls for 1.8 days and regularly aggregates up to 17mm (0.67") of snow. Throughout the year, in Rochester, United Kingdom, there are 9.7 snowfall days, and 69mm (2.72") of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 7h and 57min of daylight.On the first day of December, sunrise is at 7:40 am and sunset at 3:53 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 3:58 pm GMT.
Sunshine
In Rochester, United Kingdom, the average sunshine in December is 4.4h.UV index
The months with the lowest UV index in Rochester are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
FAQ
What is the temperature in December in Rochester?
What is the most humid month in Rochester?
What is the average humidity in December in Rochester?
What is the rainiest month in Rochester?
How much does it rain in Rochester in December?
How many days does it snow in December in Rochester?
What is the month with the shortest days in Rochester?
What is the average length of the day in December in Rochester?
What time are sunrise and sunset in December in Rochester?
How many hours of sunshine does Rochester have in December?
When is the lowest UV index in Rochester?
What is the UV index intensity in December in Rochester?
Average temperature in December
Rochester, United Kingdom
- Average high temperature in December: 8.1°C
The warmest months (with the highest average high temperature) are July and August (21.3°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in December: 4.1°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (2.8°C).
Average pressure in December
Rochester, United Kingdom
- Average pressure in December: 1014.8mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.8mbar).
Average wind speed in December
Rochester, United Kingdom
- Average wind speed in December: 19.6km/h
The windiest months (with the highest average wind speed) are February and December (19.6km/h).
The calmest month (with the lowest average wind speed) is July (14km/h).
Average humidity in December
Rochester, United Kingdom
- Average humidity in December: 88%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Rochester, United Kingdom
- Average rainfall in December: 53mm
The wettest month (with the highest rainfall) is December (53mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in December
Rochester, United Kingdom
- Average rainfall days in December: 15.5 days
The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is September (12 days).
Average snowfall in December
Rochester, United Kingdom
- Average snowfall in December: 17mm
The month with the highest snowfall is February (26mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in December
Rochester, United Kingdom
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Rochester, United Kingdom
- Average daylight in December: 7h and 5min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in December: 4h and 2min
The months with the most sunshine are July and August (Average sunshine: 8h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Rochester, United Kingdom
- Average sunshine days in December: 12 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is November (9.7 days).
Average UV index in December
Rochester, United Kingdom
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Rochester, United Kingdom
- Average cloud cover in December: 56
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 43).
Average visibility in December
Rochester, United Kingdom
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
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