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 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 beginning of April marks a minor shift in the average high-temperature, moving from March's pleasant 73°F (22.8°C) to a warm 80.2°F (26.8°C). Throughout April, the temperature tends to fall to a consistent average low of 59.7°F (15.4°C).Humidity
In April, the average relative humidity is 71%.Rainfall
In Alton, during April, the rain falls for 12.6 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Alton, during the entire year, the rain falls for 173.6 days and collects up to 31.3" (795mm) of precipitation.Snowfall
In Alton, snow does not fall in January, March through December.Daylight
The average length of the day in April is 12h and 55min.On the first day of April, sunrise is at 7:20 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:49 am and sunset at 8:09 pm EDT.
Sunshine
The average sunshine in April is 9h.UV index
In Alton, the average daily maximum UV index in April is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during April translates into the following directions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the average April temperature in Alton?
What is the average humidity in April in Alton?
How many days does it rain in April in Alton?
When it does not snow in Alton?
How many hours of daylight does Alton have in April?
What time are sunrise and sunset in April in Alton?
How long on average sun shines in April in Alton?
What is the UV index reading in April in Alton?
Average temperature in April
Alton, FL
- Average high temperature in April: 80.2°F
The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in April: 59.7°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in April
Alton, FL
- Average pressure in April: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in April
Alton, FL
- Average wind speed in April: 6.5mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in April
Alton, FL
- Average humidity in April: 71%
The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is May (70%).
Average rainfall in April
Alton, FL
- Average rainfall in April: 2.4"
The wettest month (with the highest rainfall) is August (4.57").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in April
Alton, FL
- Average rainfall days in April: 12.6 days
The month with the highest number of rainy days is August (25.5 days).
The month with the least rainy days is November (7.2 days).
Average snowfall days in April
Alton, FL
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
Alton, FL
- Average daylight in April: 12h and 5min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in April
Alton, FL
- Average sunshine days in April: 16.2 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in April
Alton, FL
- Average UV index in April: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in April
Alton, FL
- Average cloud cover in April: 32
The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in April
Alton, FL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
Alton, Florida, USA
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