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 involves a decrease in temperature, down from a chilly 47.7°F (8.7°C) in November to a wintry 37.6°F (3.1°C). The month of December shows a minor drop from daytime temperatures, generally recording a low average of 29.3°F (-1.5°C).Humidity
In Grafton, the average relative humidity in December is 82%.Rainfall
February and December are months with the least rain in Grafton when the rain falls for 10.2 days and typically aggregates up to 1.81" (46mm) of rain.Snowfall
January through May, October through December are months with snowfall. In Grafton, during December, snow falls for 11 days and regularly aggregates up to 2.36" (60mm) of snow. In Grafton, during the entire year, snow falls for 53.7 days and aggregates up to 14.37" (365mm) of snow.Daylight
December has the shortest days of the year in Grafton, with an average of 9h and 18min of daylight.On the first day of December in Grafton, sunrise is at 7:35 am and sunset at 4:59 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 5:09 pm EST.
Sunshine
In Grafton, the average sunshine in December is 3.4h.UV index
The month with the lowest UV index in Grafton is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Frequently asked questions
Is December cold in Grafton?
What is the average humidity in December in Grafton?
What is the driest month in Grafton?
How much does it rain in Grafton in December?
How much does it snow in Grafton in December?
What is the month with the shortest days in Grafton?
What is the average length of the day in December in Grafton?
What time are sunrise and sunset in December in Grafton?
How many hours of sunshine does Grafton have in December?
What is the month with the lowest UV index in Grafton?
What is the UV index reading in December in Grafton?
Average temperature in December
Grafton, OH
- Average high temperature in December: 37.6°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 (31.5°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Grafton, OH
- Average pressure in December: 30.1"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
Grafton, OH
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Grafton, OH
- Average humidity in December: 82%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in December
Grafton, OH
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is June (3.58").
The driest months (with the least rainfall) are February and December (1.81").
Average rainfall days in December
Grafton, OH
- Average rainfall days in December: 10.2 days
The month with the highest number of rainy days is May (17.5 days).
The months with the least rainy days are January and February (8.3 days).
Average snowfall in December
Grafton, OH
- Average snowfall in December: 2.36"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grafton, OH
- Average snowfall days in December: 11 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grafton, OH
- 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: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Grafton, OH
- Average sunshine days in December: 10 days
The month with the most sunshine days is October (13.6 days).
The months with the least sunshine days are January and February (9 days).
Average UV index in December
Grafton, OH
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Grafton, OH
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Grafton, OH
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Grafton, Ohio, USA
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