April weather forecast
Bethalto, IL

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Weather in April

April in Bethalto, Illinois, is a comfortable spring month, with an average temperature varying between 46.9°F (8.3°C) and 64.4°F (18°C).

Temperature

The arrival of April brings a change in Bethalto's weather, with average high-temperatures moving from March's cool 53.4°F (11.9°C) to an enjoyable 64.4°F (18°C). Bethalto, during the month of April, experiences an average low-temperature of 46.9°F (8.3°C).

Humidity

In Bethalto, the average relative humidity in April is 76%.

Rainfall

In April, the rain falls for 13.4 days. Throughout April, 2.4" (61mm) of precipitation is accumulated. Throughout the year, in Bethalto, there are 138 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Bethalto, Illinois, are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Bethalto aggregates 0.04" (1mm) of snow. In Bethalto, during the entire year, snow falls for 18.6 days and aggregates up to 4.53" (115mm) of snow.

Daylight

The average length of the day in April in Bethalto is 13h and 15min.
On the first day of the month, sunrise is at 6:43 am and sunset at 7:24 pm. On the last day of April, in Bethalto, sunrise is at 6:02 am and sunset at 7:52 pm CDT.

Sunshine

In April, the average sunshine in Bethalto is 8.5h.

UV index

The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 4 in April translates into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the temperature in April in Bethalto?

The high-temperature, in April, in Bethalto, records 64.4°F (18°C), while the low-temperature is 46.9°F (8.3°C).

What is the average humidity in April in Bethalto?

In Bethalto, Illinois, the average relative humidity in April is 76%.

How many days does it rain in April in Bethalto?

In Bethalto, during April, the rain falls for 13.4 days and regularly aggregates up to 2.4" (61mm) of precipitation.

What is the last month it snows in Bethalto?

April is the last month it regularly snows in Bethalto, Illinois. During 0.3 snowfall days, in April, Bethalto aggregates 0.04" (1mm) of snow.

How many hours of daylight does Bethalto have in April?

In April, the average day length is 13h and 15min.

When is the sunrise / sunset in April in Bethalto?

On the first day of April, sunrise is at 6:43 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:02 am and sunset at 7:52 pm CDT.

How many hours of sunshine does Bethalto have in April?

In Bethalto, Illinois, the average sunshine duration in April is 8.5h.

What is the UV index intensity in April in Bethalto?

In Bethalto, Illinois, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Bethalto, IL

Average temperature in April - Bethalto, IL
  • Average high temperature in April: 64.4°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in April: 46.9°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 (23.4°F).

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Average pressure in April
Bethalto, IL

Average pressure in April - Bethalto, IL
  • Average pressure in April: 29.94"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in April
Bethalto, IL

Average wind speed in April - Bethalto, IL
  • Average wind speed in April: 9.3mph

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average humidity in April
Bethalto, IL

Average humidity in April - Bethalto, IL
  • Average humidity in April: 76%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in April
Bethalto, IL

Average rainfall in April - Bethalto, IL
  • Average rainfall in April: 2.4"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").

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Average rainfall days in April
Bethalto, IL

Average rainfall days in April - Bethalto, IL
  • Average rainfall days in April: 13.4 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall in April
Bethalto, IL

Average snowfall in April - Bethalto, IL
  • Average snowfall in April: 0.04"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in April
Bethalto, IL

Average snowfall days in April - Bethalto, IL
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Bethalto, IL

Average daylight in April / Average sunshine in April - Bethalto, IL
  • Average daylight in April: 13h and 1min

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 30min).

  • Average sunshine in April: 8h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).

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Average sunshine days in April
Bethalto, IL

Average sunshine days in April - Bethalto, IL
  • Average sunshine days in April: 15.3 days

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index in April
Bethalto, IL

Average UV index in April - Bethalto, IL
  • Average UV index in April: 4

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, November and December (UV index 2).

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Average cloud cover in April
Bethalto, IL

Average cloud cover in April - Bethalto, IL
  • Average cloud cover in April: 42

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).

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Average visibility in April
Bethalto, IL

Average visibility in April - Bethalto, 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).

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Bethalto, Illinois, USA

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