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 is the coldest month in Rochford, exhibiting average temperatures of 29.7°F (-1.3°C) at the peak and 16.7°F (-8.5°C) at the base.Humidity
In December, the average relative humidity is 77%.Rainfall
In Rochford, in December, it is raining for 4.2 days, with typically 0.67" (17mm) of accumulated precipitation. In Rochford, during the entire year, the rain falls for 96.1 days and collects up to 14.02" (356mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Rochford. In Rochford, in December, during 10.1 snowfall days, 3.78" (96mm) of snow is typically accumulated. Throughout the year, there are 66.6 snowfall days, and 34.53" (877mm) of snow is accumulated.Daylight
The month with the shortest days in Rochford is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 4:17 pm. On the last day of December, sunrise is at 7:29 am and sunset at 4:26 pm MST.
Sunshine
In December, the average sunshine is 6h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Rochford. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Rochford?
How cold is it in Rochford in December?
What is the average humidity in December in Rochford?
How many days does it rain in December in Rochford?
How much does it snow in Rochford in December?
What is the month with the shortest days in Rochford?
How many hours of daylight does Rochford have in December?
When are sunrise and sunset in December in Rochford?
How many hours of sunshine does Rochford have in December?
When is the lowest UV index in Rochford?
What is the UV index reading in December in Rochford?
Average temperature in December
Rochford, SD
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in December: 16.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (15.4°F).
Average pressure in December
Rochford, SD
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Rochford, SD
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).
Average humidity in December
Rochford, SD
- Average humidity in December: 77%
The months with the highest relative humidity are January and February (79%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall in December
Rochford, SD
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Rochford, SD
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in December
Rochford, SD
- Average snowfall in December: 3.78"
The month with the highest snowfall is April (6.54").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Rochford, SD
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Rochford, SD
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in December
Rochford, SD
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Rochford, SD
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Rochford, SD
- Average cloud cover in December: 37
The months with the most cloud cover are February and April (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Rochford, SD
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Rochford, South Dakota, USA
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