Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
With its high average temperature of 44.2°F (6.8°C) and a low of 28.2°F (-2.1°C), January is regarded as the coldest month.Humidity
In January, the average relative humidity is 74%.Rainfall
In January, the rain falls for 7.6 days. Throughout January, 1.97" (50mm) of precipitation is accumulated. In Sundown, during the entire year, the rain falls for 136.4 days and collects up to 30.98" (787mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Sundown, Missouri, in January, during 4.4 snowfall days, 1.3" (33mm) of snow is typically accumulated. Throughout the year, in Sundown, there are 12.7 snowfall days, and 5.35" (136mm) of snow is accumulated.Daylight
In Sundown, the average length of the day in January is 10h and 0min.On the first day of the month, sunrise is at 7:22 am and sunset at 5:05 pm. On the last day of January, sunrise is at 7:13 am and sunset at 5:34 pm CST.
Sunshine
January and February, with an average of 5.1h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
How cold does it get in January?
What is the average humidity in January in Sundown?
How much does it rain in January?
How much does it snow in January?
What is the average length of the day in January?
When are sunrise and sunset in January?
What are the months with the least sunshine?
How many hours of sunshine does Sundown have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Sundown, MO
- Average high temperature in January: 44.2°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (44.2°F).
- Average low temperature in January: 28.2°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).
Average pressure in January
Sundown, MO
- Average pressure in January: 30.17"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in January
Sundown, MO
- Average wind speed in January: 7mph
The windiest months (with the highest average wind speed) are January, February, March and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in January
Sundown, MO
- Average humidity in January: 74%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July, August and October (73%).
Average rainfall in January
Sundown, MO
- Average rainfall in January: 1.97"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in January
Sundown, MO
- Average rainfall days in January: 7.6 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in January
Sundown, MO
- Average snowfall in January: 1.3"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Sundown, MO
- Average snowfall days in January: 4.4 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Sundown, MO
- Average daylight in January: 10h and 0min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 6min).
Average sunshine days in January
Sundown, MO
- Average sunshine days in January: 19.5 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in January
Sundown, MO
- Average UV index in January: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in January
Sundown, MO
- Average cloud cover in January: 44
The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are June and July (Cloud cover 30).
Average visibility in January
Sundown, MO
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, October, November and December (6mi).
The months with the lowest visibility are April, May, June, July, August and September (5mi).
Sundown, Missouri, USA
Weather forecast for your location
2. Allow the app to use your location