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 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 coming of April brings a minor shift in Keystone's weather, with average high-temperatures adjusting from March's pleasant 72.1°F (22.3°C) to a warm 78.4°F (25.8°C). In Keystone, April's nights observe an average temperature dip to a comfortable 67.3°F (19.6°C).Humidity
The average relative humidity in April is 73%.Rainfall
In Keystone, Florida, in April, it is raining for 7.9 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, in Keystone, there are 120.5 rainfall days, and 9.45" (240mm) of precipitation is accumulated.Daylight
In Keystone, the average length of the day in April is 12h and 52min.On the first day of the month, sunrise is at 7:19 am and sunset at 7:48 pm. On the last day of April, sunrise is at 6:50 am and sunset at 8:04 pm EDT.
Sunshine
In April, the average sunshine is 9.6h.UV index
The average daily maximum UV index in April is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In April, the maximum UV index of 6 suggests these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How many days does it rain in April?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
How high is the UV index in April?
Average temperature in April
Keystone, FL
- Average high temperature in April: 78.4°F
The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (66°F).
- Average low temperature in April: 67.3°F
The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (54.5°F).
Average pressure in April
Keystone, FL
- Average pressure in April: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in April
Keystone, FL
- Average wind speed in April: 8.9mph
The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in April
Keystone, FL
- Average humidity in April: 73%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is May (72%).
Average rainfall in April
Keystone, FL
- Average rainfall in April: 0.51"
The wettest month (with the highest rainfall) is July (1.77").
The driest month (with the least rainfall) is March (0.2").
Average rainfall days in April
Keystone, FL
- Average rainfall days in April: 7.9 days
The month with the highest number of rainy days is August (17.9 days).
The month with the least rainy days is November (5.5 days).
Average daylight in April /
Average sunshine in April
Keystone, FL
- Average daylight in April: 12h and 5min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in April: 9h and 4min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in April
Keystone, FL
- Average sunshine days in April: 21 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is July (6.7 days).
Average UV index in April
Keystone, FL
- Average UV index in April: 6
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in April
Keystone, FL
- Average cloud cover in April: 23
The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).
Average visibility in April
Keystone, FL
- 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).
Keystone, Florida, USA
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