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
January, known for its average high temperature of 38.5°F (3.6°C) and an average low temperature of 24.4°F (-4.2°C), is the coldest month.Humidity
In January, the average relative humidity in Robertsville is 75%.Rainfall
In Robertsville, in January, during 6.6 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Robertsville, during the entire year, the rain falls for 138.9 days and collects up to 28.54" (725mm) of precipitation.Snowfall
Months with snowfall in Robertsville are January through March, November and December. In Robertsville, in January, during 5.4 snowfall days, 1.3" (33mm) of snow is typically accumulated. In Robertsville, Missouri, during the entire year, snow falls for 16.3 days and aggregates up to 5.08" (129mm) of snow.Daylight
The average length of the day in January is 9h and 51min.On the first day of the month, sunrise is at 7:20 am and sunset at 4:53 pm. On the last day of January, sunrise is at 7:09 am and sunset at 5:23 pm CST.
Sunshine
January has the least sunshine of the year in Robertsville, with an average of 4.7h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: In January, a regular UV index of 2 translates into these guidelines:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest in Robertsville?
How cold is it in Robertsville in January?
What is the average humidity in January in Robertsville?
How many days does it rain in January in Robertsville?
How many days does it snow in January in Robertsville?
How many hours of daylight does Robertsville have in January?
What time are sunrise and sunset in January in Robertsville?
What is the month with the least sunshine in Robertsville?
How long on average sun shines in January in Robertsville?
What is the month with the lowest UV index in Robertsville?
What is the UV index intensity in January in Robertsville?
Average temperature in January
Robertsville, MO
- Average high temperature in January: 38.5°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in January: 24.4°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 (24.4°F).
Average pressure in January
Robertsville, MO
- Average pressure in January: 30.16"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Robertsville, MO
- Average wind speed in January: 8.6mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in January
Robertsville, MO
- Average humidity in January: 75%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in January
Robertsville, MO
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in January
Robertsville, MO
- Average rainfall days in January: 6.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in January
Robertsville, MO
- Average snowfall in January: 1.3"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in January
Robertsville, MO
- Average snowfall days in January: 5.4 days
The month with the highest number of snowfall days is January (5.4 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
Robertsville, MO
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in January
Robertsville, MO
- Average sunshine days in January: 20.1 days
The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in January
Robertsville, 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
Robertsville, MO
- Average cloud cover in January: 50
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in January
Robertsville, MO
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Robertsville, Missouri, USA
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