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
Transitioning from November to December involves a subtle drop in average high-temperatures, descending from a chilly 46.8°F (8.2°C) to an icy 37.9°F (3.3°C). During December's nights, Grand River notes a minor temperature decline, reaching an average of 30.2°F (-1°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Grand River, during December, the rain falls for 11.4 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Grand River, Ohio, during the entire year, the rain falls for 178.9 days and collects up to 32.2" (818mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Grand River, Ohio. In Grand River, during December, snow falls for 13.5 days and regularly aggregates up to 3.98" (101mm) of snow. Throughout the year, in Grand River, there are 64.4 snowfall days, and 19.92" (506mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:33 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 5:04 pm EST.
Sunshine
The average sunshine in December is 3.1h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
How cold is December in Grand River?
What is the average humidity in December in Grand River?
How much does it rain in Grand River in December?
How much does it snow in Grand River in December?
What is the month with the shortest days in Grand River?
How many hours of daylight does Grand River have in December?
When is the sunrise / sunset in December in Grand River?
How many hours of sunshine does Grand River have in December?
When is the lowest UV index in Grand River?
What is the UV index intensity in December in Grand River?
Average temperature in December
Grand River, OH
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 30.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in December
Grand River, OH
- Average pressure in December: 30.09"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
Grand River, OH
- Average wind speed in December: 11.6mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in December
Grand River, OH
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in December
Grand River, OH
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Grand River, OH
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is October (18 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Grand River, OH
- Average snowfall in December: 3.98"
The month with the highest snowfall is February (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Grand River, OH
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Grand River, OH
- 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 12min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Grand River, OH
- Average sunshine days in December: 7.7 days
The month with the most sunshine days is May (11.4 days).
The month with the least sunshine days is January (6.8 days).
Average UV index in December
Grand River, OH
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Grand River, OH
- Average cloud cover in December: 69
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Grand River, OH
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Grand River, Ohio, USA
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