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
The shift into April brings an increase in the average high-temperature, moving from a cool 52°F (11.1°C) in March to a refreshing 62.8°F (17.1°C). Helena's average low-temperature in the month of April is recorded at a chilly 44.4°F (6.9°C).Humidity
In Helena, Missouri, the average relative humidity in April is 72%.Rainfall
In Helena, during April, the rain falls for 14.1 days and regularly aggregates up to 2.87" (73mm) of precipitation. Throughout the year, in Helena, Missouri, there are 132.3 rainfall days, and 27.28" (693mm) of precipitation is accumulated.Snowfall
Months with snowfall in Helena are January through May, October through December. In Helena, in April, during 0.7 snowfall days, 0.55" (14mm) of snow is typically accumulated. Throughout the year, there are 25.5 snowfall days, and 10.91" (277mm) of snow is accumulated.Daylight
In Helena, the average length of the day in April is 13h and 17min.On the first day of April, sunrise is at 7:01 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:12 pm CDT.
Sunshine
In Helena, Missouri, the average sunshine in April is 8.4h.UV index
In April, the average daily maximum UV index in Helena, Missouri, is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In April, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Direct Sun exposure should be minimized especially during midday when radiation is most intense. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Helena?
What is the average humidity in April in Helena?
How many days does it rain in April in Helena?
How much does it snow in Helena in April?
What is the average length of the day in April in Helena?
When are sunrise and sunset in April in Helena?
How many hours of sunshine does Helena have in April?
What is the UV index reading in April in Helena?
Average temperature in April
Helena, MO
- Average high temperature in April: 62.8°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in April: 44.4°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in April
Helena, MO
- Average pressure in April: 29.91"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in April
Helena, MO
- Average wind speed in April: 9.8mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in April
Helena, MO
- Average humidity in April: 72%
The month with the highest relative humidity is June (79%).
The months with the lowest relative humidity are October and November (70%).
Average rainfall in April
Helena, MO
- Average rainfall in April: 2.87"
The wettest month (with the highest rainfall) is May (4.02").
The driest months (with the least rainfall) are January and February (0.94").
Average rainfall days in April
Helena, MO
- Average rainfall days in April: 14.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in April
Helena, MO
- Average snowfall in April: 0.55"
The month with the highest snowfall is January (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Helena, MO
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is February (7.2 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, MO
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in April
Helena, MO
- Average sunshine days in April: 13.5 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in April
Helena, MO
- Average UV index in April: 4
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 April
Helena, MO
- Average cloud cover in April: 41
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in April
Helena, MO
- Average visibility in April: 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).
Helena, Missouri, USA
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