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
A distinct shift in the average high-temperature is signaled in December, moving down from a wintry 39.9°F (4.4°C) in November to a freezing cold 24.4°F (-4.2°C). The temperature lowers to an average of 14.9°F (-9.5°C) during December nights.Humidity
In Rockford, Minnesota, the average relative humidity in December is 87%.Rainfall
In Rockford, during December, the rain falls for 3.7 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 118.6 rainfall days, and 21.14" (537mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rockford are January through May, October through December. The month with the most snowfall is December, when snow falls for 12.1 days and typically aggregates up to 4.65" (118mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:33 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:53 am and sunset at 4:43 pm CST.
Sunshine
In December, the average sunshine is 3.5h.UV index
The months with the lowest UV index in Rockford are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 1 in December leads to these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
How cold is it in Rockford in December?
What is the average humidity in December in Rockford?
How much does it rain in Rockford in December?
When does it snow the most in Rockford?
How many days does it snow in December in Rockford?
What is the month with the shortest days in Rockford?
What is the average length of the day in December in Rockford?
What time are sunrise and 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?
How high is the UV index in December in Rockford?
Average temperature in December
Rockford, MN
- Average high temperature in December: 24.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.2°F).
Average pressure in December
Rockford, MN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Rockford, MN
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).
Average humidity in December
Rockford, MN
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and May (71%).
Average rainfall in December
Rockford, MN
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Rockford, MN
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in December
Rockford, MN
- Average snowfall in December: 4.65"
The month with the highest snowfall is December (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rockford, MN
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is January (13.7 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, MN
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Rockford, MN
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is December (17.8 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in December
Rockford, MN
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Rockford, MN
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in December
Rockford, MN
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Rockford, Minnesota, USA
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