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
Leonardo in December undergoes a slight reduction in the average high-temperature, shifting from November's fresh 52.2°F (11.2°C) to a chilly 43.9°F (6.6°C). December nights in Leonardo experience a minor temperature downturn to an icy 35.4°F (1.9°C).Humidity
In December, the average relative humidity in Leonardo is 76%.Rainfall
In Leonardo, in December, it is raining for 9.3 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 127 rainfall days, and 12.99" (330mm) of precipitation is accumulated.Snowfall
January through March, October through December are months with snowfall in Leonardo. The months with the most snowfall are January and December, with an average 0.47" (12mm) of accumulated snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:00 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:19 am and sunset at 4:39 pm EST.
Sunshine
The average sunshine in December is 5.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Leonardo. 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: The maximum daily UV index of 2 during December translates into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Leonardo?
What is the average humidity in December in Leonardo?
How many days does it rain in December in Leonardo?
When does it snow the most in Leonardo?
How many days does it snow in December in Leonardo?
What is the month with the shortest days in Leonardo?
What is the average length of the day in December in Leonardo?
What time are sunrise and sunset in December in Leonardo?
How long on average sun shines in December in Leonardo?
When is the lowest UV index in Leonardo?
What is the UV index reading in December in Leonardo?
Average temperature in December
Leonardo, NJ
- Average high temperature in December: 43.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 35.4°F
The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in December
Leonardo, NJ
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Leonardo, NJ
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Leonardo, NJ
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in December
Leonardo, NJ
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is July (1.69").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in December
Leonardo, NJ
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Leonardo, NJ
- Average snowfall in December: 0.47"
The months with the highest snowfall are January and December (0.47").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Leonardo, NJ
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is January (4.7 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
Leonardo, NJ
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Leonardo, NJ
- Average sunshine days in December: 18 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in December
Leonardo, NJ
- 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, March, November and December (UV index 2).
Average cloud cover in December
Leonardo, NJ
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in December
Leonardo, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Leonardo, New Jersey, USA
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