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
December suggests a modest reduction in the average high-temperature, shifting from a chilly 43.9°F (6.6°C) in November to a wintry 33.8°F (1°C). In December, Hornell encounters an average low-temperature of 24.1°F (-4.4°C) during the night.Humidity
The average relative humidity in December is 86%.Rainfall
In December, the rain falls for 8.9 days. Throughout December, 1.65" (42mm) of precipitation is accumulated. In Hornell, during the entire year, the rain falls for 153.6 days and collects up to 22.48" (571mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Hornell. In Hornell, during December, snow falls for 13.7 days and regularly aggregates up to 5.12" (130mm) of snow. Throughout the year, in Hornell, there are 71.8 snowfall days, and 25.47" (647mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:39 pm. On the last day of December, in Hornell, sunrise is at 7:39 am and sunset at 4:48 pm EST.
Sunshine
January, February and December, with an average of 2.8h of sunshine, are months with the least sunshine in Hornell.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 1 during December morphs into the following directions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Hornell?
What is the average humidity in December in Hornell?
How much does it rain in Hornell in December?
How many days does it snow in December in Hornell?
What is the month with the shortest days in Hornell?
What is the average length of the day in December in Hornell?
What time are sunrise and sunset in December in Hornell?
What are the months with the least sunshine in Hornell?
How long on average sun shines in December in Hornell?
What is the month with the lowest UV index in Hornell?
What is the UV index intensity in December in Hornell?
Average temperature in December
Hornell, NY
- Average high temperature in December: 33.8°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in December
Hornell, NY
- Average pressure in December: 30.07"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
Hornell, NY
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Hornell, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (78%).
Average rainfall in December
Hornell, NY
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in December
Hornell, NY
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in December
Hornell, NY
- Average snowfall in December: 5.12"
The month with the highest snowfall is February (6.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hornell, NY
- Average snowfall days in December: 13.7 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hornell, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 2h and 48min).
Average sunshine days in December
Hornell, NY
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (9 days).
Average UV index in December
Hornell, 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
Hornell, NY
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Hornell, NY
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Hornell, New York, USA
Weather forecast for your location
2. Allow the app to use your location
