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
Foster experiences its lowest average temperatures in January, reaching a peak of 37.4°F (3°C) and a minimum of 24.4°F (-4.2°C).Humidity
In Foster, the average relative humidity in January is 80%.Rainfall
In Foster, in January, during 9.9 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Foster, during the entire year, the rain falls for 156.2 days and collects up to 26.1" (663mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. The month with the most snowfall is January, when snow falls for 8.4 days and typically aggregates up to 1.89" (48mm) of snow.Daylight
In Foster, the average length of the day in January is 9h and 49min.On the first day of the month, sunrise is at 7:55 am and sunset at 5:25 pm. On the last day of January, sunrise is at 7:43 am and sunset at 5:56 pm EST.
Sunshine
With an average of 4.1h of sunshine, January has the least sunshine of the year.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during January leads to these instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. When the Sun is at its strongest around midday, find shade and limit exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the coldest?
How cold is it in January?
What is the average humidity in January?
How many days does it rain in January in Foster?
When does it snow the most?
How many days does it snow in January?
How many hours of daylight does Foster have in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Foster have in January?
What are the months with the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Foster, KY
- Average high temperature in January: 37.4°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in January: 24.4°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in January
Foster, KY
- Average pressure in January: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in January
Foster, KY
- 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 (5mph).
Average humidity in January
Foster, KY
- Average humidity in January: 80%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in January
Foster, KY
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in January
Foster, KY
- Average rainfall days in January: 9.9 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in January
Foster, KY
- Average snowfall in January: 1.89"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Foster, KY
- Average snowfall days in January: 8.4 days
The month with the highest number of snowfall days is January (8.4 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
Foster, KY
- 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 1min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in January
Foster, KY
- Average sunshine days in January: 14.7 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in January
Foster, KY
- Average UV index in January: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Foster, KY
- Average cloud cover in January: 59
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in January
Foster, KY
- Average visibility in January: 6mi
The months with the highest visibility are January, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May and July (5mi).
Foster, Kentucky, USA
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