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
The onset of December coincides with a reduction in the average high-temperature, falling from a frosty 43.7°F (6.5°C) in November to a cold 33.1°F (0.6°C). Bromley's nighttime temperatures in December see a subtle dip to an average of 24.4°F (-4.2°C).Humidity
In December, the average relative humidity is 87%.Rainfall
In Bromley, in December, it is raining for 7.9 days, with typically 1.81" (46mm) of accumulated precipitation. In Bromley, during the entire year, the rain falls for 150 days and collects up to 24.13" (613mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Bromley, in December, snow falls for 15 days, with typically accumulated 5.83" (148mm) of snow. Throughout the year, in Bromley, there are 78.2 snowfall days, and 29.37" (746mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of December, 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 Bromley, New York, the average sunshine in December is 3h.UV index
January, February 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 hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
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 December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Bromley have in December?
When are sunrise and sunset in December in Bromley?
How long on average sun shines in December?
What is the month with the lowest UV index in Bromley?
What is the UV index reading in December?
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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