April weather forecastRockport, IL
April
Weather in April
April in Rockport, Illinois, is a refreshing spring month, with an average temperature ranging between max 64°F (17.8°C) and min 45.9°F (7.7°C).Temperature
April brings an increase in the average high-temperature, progressing from a fresh 52.2°F (11.2°C) in March to a refreshing 64°F (17.8°C). An average low-temperature of 45.9°F (7.7°C) is recorded in the month of April in Rockport.Humidity
In April, the average relative humidity is 75%.Rainfall
In Rockport, in April, during 14.8 rainfall days, 2.83" (72mm) of precipitation is typically accumulated. Throughout the year, there are 142.7 rainfall days, and 27.64" (702mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 0.5 snowfall days, in April, Rockport aggregates 0.04" (1mm) of snow. In Rockport, during the entire year, snow falls for 26.1 days and aggregates up to 9.45" (240mm) of snow.Daylight
The average length of the day in April is 13h and 16min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:28 pm. On the last day of April, sunrise is at 6:05 am and sunset at 7:57 pm CDT.
Sunshine
The average sunshine in April is 8.1h.UV index
In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In April, the maximum UV index of 4 suggests these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. To cut down UV radiation exposure by about half, sport a wide-brim hat. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Rockport, IL
- Average high temperature in April: 64°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in April: 45.9°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in April
Rockport, IL
- Average pressure in April: 29.93"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Rockport, IL
- Average wind speed in April: 9.6mph
The windiest months (with the highest average wind speed) are January and February (9.7mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in April
Rockport, IL
- Average humidity in April: 75%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Rockport, IL
- Average rainfall in April: 2.83"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in April
Rockport, IL
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in April
Rockport, IL
- Average snowfall in April: 0.04"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Rockport, IL
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (8.5 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
Rockport, IL
- Average daylight in April: 13h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 8h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in April
Rockport, IL
- Average sunshine days in April: 13.3 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in April
Rockport, IL
- 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
Rockport, IL
- Average cloud cover in April: 43
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility in April
Rockport, IL
- 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).
