April weather forecastMarion, IL
April
Weather in April
Temperatures continue to climb in Marion during April, indicating a full swing of spring. The city experiences an impressive leap in temperatures with high averages reaching 66.4°F (19.1°C) and lows rising to 48.7°F (9.3°C). April shows a blend of spring showers and lengthening daylight hours, encouraging outdoor activities. Even though April experiences the highest average rainfall, the increased sunshine duration mitigates its dampness. As April gives way to May, anticipate a significant rise in temperatures and even longer daylight hours.Temperature
As March transitions into April, a change in temperatures is observed, with average highs moving from a fresh 55.2°F (12.9°C) to an enjoyable 66.4°F (19.1°C). Throughout April, a steady low-temperature average of 48.7°F (9.3°C) is noted.Humidity
In April, the average relative humidity in Marion is 77%.Rainfall
April is the month with the most rainfall. Rain falls for 13.8 days and accumulates 3.11" (79mm) of precipitation.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, Marion aggregates 0.08" (2mm) of snow. Throughout the year, there are 14.5 snowfall days, and 4.13" (105mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 12min.On the first day of April, sunrise is at 6:39 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:45 pm CDT.
Sunshine
In Marion, the average sunshine in April is 8.6h.UV index
The average daily maximum UV index in April is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 5 in April translates into these instructions:
Take precautions - Protection against sun damage is advised. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Marion, IL
- Average high temperature in April: 66.4°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in April: 48.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in April
Marion, IL
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Marion, IL
- Average wind speed in April: 9.1mph
The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in April
Marion, IL
- Average humidity in April: 77%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Marion, IL
- Average rainfall in April: 3.11"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in April
Marion, IL
- Average rainfall days in April: 13.8 days
The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in April
Marion, IL
- Average snowfall in April: 0.08"
The months with the highest snowfall are January and February (0.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Marion, IL
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is February (4.3 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
Marion, IL
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in April: 8h and 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in April
Marion, IL
- Average sunshine days in April: 13.7 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in April
Marion, IL
- 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 and December (UV index 2).
Average cloud cover in April
Marion, IL
- Average cloud cover in April: 41
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).
Average visibility in April
Marion, 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).
