Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival is marked by an increase in the average high-temperature, moving from a fresh 55°F (12.8°C) in March to an enjoyable 66.4°F (19.1°C). Nighttime temperatures consistently average a frosty 47.3°F (8.5°C) during April.Humidity
In April, the average relative humidity is 77%.Rainfall
In April, the rain falls for 16 days. Throughout April, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 163.3 rainfall days, and 32.09" (815mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 0.6 snowfall days, in April, Saint Mary aggregates 0.12" (3mm) of snow. Throughout the year, there are 27.3 snowfall days, and 7.91" (201mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 11min.On the first day of April, sunrise is at 7:25 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 8:30 pm EDT.
Sunshine
In Saint Mary, the average sunshine in April is 7.8h.UV index
In Saint Mary, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In April, the maximum UV index of 5 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
What is the average length of the day in April?
When are sunrise and sunset in April?
How many hours of sunshine does Saint Mary have in April?
How high is the UV index in April in Saint Mary?
Average temperature in April
Saint Mary, KY
- Average high temperature in April: 66.4°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 April: 47.3°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 April
Saint Mary, KY
- Average pressure in April: 29.98"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 April
Saint Mary, KY
- Average wind speed in April: 8.1mph
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 April
Saint Mary, KY
- Average humidity in April: 77%
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 April
Saint Mary, KY
- Average rainfall in April: 2.87"
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 April
Saint Mary, KY
- Average rainfall days in April: 16 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 April
Saint Mary, KY
- Average snowfall in April: 0.12"
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 April
Saint Mary, KY
- Average snowfall days in April: 0.6 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 April /
Average sunshine in April
Saint Mary, KY
- Average daylight in April: 13h and 1min
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 April: 7h and 5min
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 April
Saint Mary, KY
- Average sunshine days in April: 12.8 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 April
Saint Mary, KY
- Average UV index in April: 5
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 April
Saint Mary, KY
- Average cloud cover in April: 42
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 April
Saint Mary, KY
- Average visibility in April: 6mi
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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