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 commencement of December involves a temperature shift, with the average high-temperature dropping from a wintry 42.4°F (5.8°C) in November to a freezing cold 31.5°F (-0.3°C). December registers an average low temperature of 22.6°F (-5.2°C), subtly lower than the daytime maximum.Humidity
In Prospect, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 12.2 days. Throughout December, 2.4" (61mm) of precipitation is accumulated. In Prospect, during the entire year, the rain falls for 176.6 days and collects up to 29.06" (738mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Prospect, during December, snow falls for 17.5 days and regularly aggregates up to 7.44" (189mm) of snow. Throughout the year, in Prospect, there are 88.9 snowfall days, and 32.6" (828mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 4:26 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:35 pm EST.
Sunshine
The average sunshine in December is 2.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a daily UV index of 1 turns into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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 many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Prospect have in December?
What are the months with the lowest UV index?
How high is the UV index in December in Prospect?
Average temperature in December
Prospect, NY
- Average high temperature in December: 31.5°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 22.6°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Prospect, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Prospect, NY
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in December
Prospect, NY
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Prospect, NY
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (2.95").
The driest months (with the least rainfall) are March and September (1.93").
Average rainfall days in December
Prospect, NY
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in December
Prospect, NY
- Average snowfall in December: 7.44"
The month with the highest snowfall is January (8.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Prospect, NY
- Average snowfall days in December: 17.5 days
The month with the highest number of snowfall days is January (21.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Prospect, NY
- Average daylight in December: 9h and 0min
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 0min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 18min).
Average sunshine days in December
Prospect, NY
- Average sunshine days in December: 5.8 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in December
Prospect, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Prospect, NY
- Average cloud cover in December: 72
The months with the most cloud cover are January and February (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Prospect, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Prospect, New York, USA
Weather forecast for your location
2. Allow the app to use your location