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
During Rockford's transition into December, the average high-temperature lessens, moving from a frosty 48.4°F (9.1°C) in November to a wintry 37.6°F (3.1°C). The average low-temperature of 27.3°F (-2.6°C) is witnessed during December.Humidity
January, February and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In December, in Rockford, Ohio, the rain falls for 8.2 days. Throughout December, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 137.8 rainfall days, and 19.13" (486mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Rockford, Ohio. In Rockford, in December, during 8.2 snowfall days, 1.57" (40mm) of snow is typically accumulated. In Rockford, during the entire year, snow falls for 37.6 days and aggregates up to 8.15" (207mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Rockford.On the first day of December, sunrise is at 7:43 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:21 pm EST.
Sunshine
In December, the average sunshine is 3.8h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 1 in December interprets into the following advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Rockford in December?
What is the most humid month in Rockford?
What is the average humidity in December in Rockford?
How many days does it rain in December in Rockford?
How much does it snow in Rockford in December?
What is the month with the shortest days in Rockford?
What is the average length of the day in December in Rockford?
When is the sunrise / sunset in December in Rockford?
How many hours of sunshine does Rockford have in December?
What is the month with the lowest UV index in Rockford?
What is the UV index reading in December in Rockford?
Average temperature in December
Rockford, OH
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
Rockford, OH
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Rockford, OH
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Rockford, OH
- Average humidity in December: 83%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Rockford, OH
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in December
Rockford, OH
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Rockford, OH
- Average snowfall in December: 1.57"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rockford, OH
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rockford, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Rockford, OH
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in December
Rockford, OH
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Rockford, OH
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Rockford, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Rockford, Ohio, USA
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