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 Lake Hiawatha, entering December brings a temperature decrement, reducing from November's frosty 49.8°F (9.9°C) to a wintry 40.1°F (4.5°C). Throughout the month of December, Lake Hiawatha witnesses an average low-temperature of 29.1°F (-1.6°C).Humidity
February, October and December, with an average relative humidity of 80%, are the most humid months.Rainfall
December is the month with the most rainfall. Rain falls for 11.2 days and accumulates 3.43" (87mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Lake Hiawatha, in December, snow falls for 4.7 days, with typically accumulated 2.24" (57mm) of snow. In Lake Hiawatha, during the entire year, snow falls for 30.9 days and aggregates up to 15.79" (401mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:03 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:39 pm EST.
Sunshine
In Lake Hiawatha, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the most humid month?
What is the average humidity in December?
What is the rainiest month?
How much does it rain in Lake Hiawatha in December?
How many days does it snow in December?
What is the month with the shortest days in Lake Hiawatha?
How many hours of daylight does Lake Hiawatha have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index in Lake Hiawatha?
What is the UV index reading in December?
Average temperature in December
Lake Hiawatha, NJ
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Lake Hiawatha, 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
Lake Hiawatha, NJ
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Lake Hiawatha, NJ
- Average humidity in December: 80%
The months with the highest relative humidity are February, October and December (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Lake Hiawatha, NJ
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Lake Hiawatha, NJ
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Lake Hiawatha, NJ
- Average snowfall in December: 2.24"
The month with the highest snowfall is March (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lake Hiawatha, NJ
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is February (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lake Hiawatha, NJ
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in December
Lake Hiawatha, NJ
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in December
Lake Hiawatha, 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
Lake Hiawatha, NJ
- Average cloud cover in December: 50
The months with the most cloud cover are February, March and December (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Lake Hiawatha, NJ
- Average visibility in December: 6mi
The months with the highest visibility are January, April, July, August, October, November and December (6mi).
The months with the lowest visibility are February, March, May, June and September (5mi).
Lake Hiawatha, New Jersey, USA
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