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
Bromley's weather changes with the onset of December, slightly falling from a chilly 43.7°F (6.5°C) in November to a cold 33.1°F (0.6°C). Bromley's nighttime average temperature in December drops marginally from the daytime highs, settling at a freezing cold 24.4°F (-4.2°C).Humidity
The average relative humidity in December is 87%.Rainfall
In Bromley, during December, the rain falls for 7.9 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 150 rainfall days, and 24.13" (613mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Bromley. In Bromley, during December, snow falls for 15 days and regularly aggregates up to 5.83" (148mm) of snow. In Bromley, during the entire year, snow falls for 78.2 days and aggregates up to 29.37" (746mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December in Bromley, sunrise is at 7:16 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 4:40 pm EST.
Sunshine
In December, the average sunshine is 3h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Bromley. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Opt for tightly woven and loose clothing to enhance protection from the Sun. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Bromley in December?
What is the average humidity in December in Bromley?
How many days does it rain in December in Bromley?
How many days does it snow in December in Bromley?
What is the month with the shortest days in Bromley?
What is the average length of the day in December in Bromley?
When are sunrise and sunset in December in Bromley?
How long on average sun shines in December in Bromley?
When is the lowest UV index in Bromley?
How high is the UV index in December in Bromley?
Average temperature in December
Bromley, NY
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Bromley, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Bromley, NY
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Bromley, NY
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (80%).
Average rainfall in December
Bromley, NY
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is November (1.57").
Average rainfall days in December
Bromley, NY
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Bromley, NY
- Average snowfall in December: 5.83"
The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Bromley, NY
- Average snowfall days in December: 15 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bromley, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Bromley, NY
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in December
Bromley, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Bromley, NY
- Average cloud cover in December: 70
The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Bromley, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May and October (6mi).
The months with the lowest visibility are January, February, March, June, July, August, September, November and December (5mi).
Bromley, New York, USA
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