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
Helena sees a rise in temperature during April, with average high-temperatures transitioning from a fresh 52.5°F (11.4°C) in March to a comfortable 64.9°F (18.3°C). Throughout April nights, Helena registers an average low-temperature of 45.7°F (7.6°C).Humidity
The average relative humidity in April is 76%.Rainfall
In Helena, during April, the rain falls for 13.5 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, there are 143.3 rainfall days, and 17.36" (441mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Helena. April is the last month it regularly snows in Helena. During 0.8 snowfall days, in April, Helena aggregates 0.31" (8mm) of snow. In Helena, Kentucky, during the entire year, snow falls for 30.6 days and aggregates up to 5.16" (131mm) of snow.Daylight
In Helena, the average length of the day in April is 13h and 14min.On the first day of the month, sunrise is at 7:18 am and sunset at 7:58 pm. On the last day of April, sunrise is at 6:38 am and sunset at 8:26 pm EDT.
Sunshine
In Helena, the average sunshine in April is 7.7h.UV index
In April, the average daily maximum UV index in Helena is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 5 in April leads to these recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. To cut down UV radiation exposure by about half, sport a wide-brim hat. 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 is the temperature in April in Helena?
What is the average humidity in April in Helena?
How much does it rain in Helena in April?
What is the last month it snows in Helena?
How many hours of daylight does Helena have in April?
When is the sunrise / sunset in April in Helena?
How long on average sun shines in April in Helena?
What is the UV index intensity in April in Helena?
Average temperature in April
Helena, KY
- Average high temperature in April: 64.9°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 (37.9°F).
- Average low temperature in April: 45.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in April
Helena, KY
- Average pressure in April: 29.98"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in April
Helena, KY
- Average wind speed in April: 8.1mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in April
Helena, KY
- Average humidity in April: 76%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in April
Helena, KY
- Average rainfall in April: 1.77"
The wettest month (with the highest rainfall) is July (1.93").
The driest months (with the least rainfall) are January, September and October (1.06").
Average rainfall days in April
Helena, KY
- Average rainfall days in April: 13.5 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in April
Helena, KY
- Average snowfall in April: 0.31"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Helena, KY
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Helena, KY
- Average daylight in April: 13h and 1min
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 April: 7h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in April
Helena, KY
- Average sunshine days in April: 14.1 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in April
Helena, 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
Helena, KY
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in April
Helena, 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).
Helena, Kentucky, USA
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