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
During the coldest month, January, temperatures average a high of 39.9°F (4.4°C) and a low of 27.1°F (-2.7°C).Humidity
In Saint Mary, the average relative humidity in January is 79%.Rainfall
In Saint Mary, in January, during 10.3 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Saint Mary, during the entire year, the rain falls for 163.3 days and collects up to 32.09" (815mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In Saint Mary, in January, snow falls for 7.8 days, with typically accumulated 1.85" (47mm) of snow. In Saint Mary, Kentucky, during the entire year, snow falls for 27.3 days and aggregates up to 7.91" (201mm) of snow.Daylight
The average length of the day in January is 9h and 55min.On the first day of January, sunrise is at 7:56 am and sunset at 5:33 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 6:03 pm EST.
Sunshine
The month with the least sunshine is January, with an average of 4.3h of sunshine.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 estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is January?
What is the average humidity in January?
How much does it rain in January?
How much does it snow in January?
How many hours of daylight does Saint Mary have in January?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How many hours of sunshine does Saint Mary have in January?
What are the months with the lowest UV index in Saint Mary?
What is the UV index reading in January?
Average temperature in January
Saint Mary, KY
- Average high temperature in January: 39.9°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in January: 27.1°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in January
Saint Mary, KY
- 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 (29.96"Hg).
Average wind speed in January
Saint Mary, KY
- Average wind speed in January: 8.5mph
The windiest months (with the highest average wind speed) are January and February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in January
Saint Mary, KY
- Average humidity in January: 79%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
Saint Mary, KY
- Average rainfall in January: 2.17"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in January
Saint Mary, KY
- Average rainfall days in January: 10.3 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.6 days).
Average snowfall in January
Saint Mary, KY
- Average snowfall in January: 1.85"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Saint Mary, KY
- Average snowfall days in January: 7.8 days
The month with the highest number of snowfall days is January (7.8 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
Saint Mary, KY
- Average daylight in January: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January: 4h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in January
Saint Mary, KY
- Average sunshine days in January: 13.7 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is July (11 days).
Average UV index in January
Saint Mary, KY
- 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, November and December (UV index 2).
Average cloud cover in January
Saint Mary, KY
- Average cloud cover in January: 57
The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in January
Saint Mary, KY
- Average visibility in January: 5mi
The months with the highest visibility are March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are January, February, May, July and September (5mi).
Saint Mary, Kentucky, USA
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