April weather forecast
Arnold, MO

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Weather in April

April in Arnold, Missouri, is a refreshing spring month, with an average temperature ranging between max 65.7°F (18.7°C) and min 48°F (8.9°C).

Temperature

Arnold in April shows a temperature shift, moving from an average high of a cool 54.5°F (12.5°C) in March to an enjoyable 65.7°F (18.7°C). The temperature in Arnold lowers to an average of 48°F (8.9°C) during April nights.

Humidity

In April, the average relative humidity in Arnold is 75%.

Rainfall

In Arnold, during April, the rain falls for 14.7 days and regularly aggregates up to 3.43" (87mm) of precipitation. Throughout the year, there are 146.1 rainfall days, and 32.36" (822mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Arnold, Missouri.

Daylight

In April, the average length of the day in Arnold, Missouri, is 13h and 14min.
On the first day of the month, sunrise is at 6:45 am and sunset at 7:25 pm. On the last day of April, sunrise is at 6:04 am and sunset at 7:52 pm CDT.

Sunshine

The average sunshine in April in Arnold is 8.4h.

UV index

In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 5 in April translates into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the temperature in April in Arnold?

The average high-temperature and low-temperature in Arnold during April are 65.7°F (18.7°C) and 48°F (8.9°C) respectively.

What is the average humidity in April in Arnold?

In Arnold, Missouri, the average relative humidity in April is 75%.

How many days does it rain in April in Arnold?

In April, in Arnold, the rain falls for 14.7 days. Throughout April, 3.43" (87mm) of precipitation is accumulated.

When it does not snow in Arnold?

April through October are months without snowfall.

Does it snow in Arnold in April?

In April, it doesn't snow. March is the latest month when it typically snows.

What is the average length of the day in April in Arnold?

In Arnold, Missouri, the average day length in April is 13h and 14min.

When are sunrise and sunset in April in Arnold?

On the first day of April in Arnold, Missouri, sunrise is at 6:45 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:52 pm CDT.

How many hours of sunshine does Arnold have in April?

In April, the average sunshine duration in Arnold is 8.4h.

What is the UV index intensity in April in Arnold?

The average daily maximum UV index in April in Arnold, Missouri, is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Arnold, MO

Average temperature in April - Arnold, MO
  • Average high temperature in April: 65.7°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in April: 48°F

The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25°F).

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Average pressure in April
Arnold, MO

Average pressure in April - Arnold, MO
  • 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
Arnold, MO

Average wind speed in April - Arnold, MO
  • Average wind speed in April: 8.8mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in April
Arnold, MO

Average humidity in April - Arnold, MO
  • Average humidity in April: 75%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in April
Arnold, MO

Average rainfall in April - Arnold, MO
  • Average rainfall in April: 3.43"

The wettest month (with the highest rainfall) is May (3.94").
The driest months (with the least rainfall) are February and November (1.77").

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Average rainfall days in April
Arnold, MO

Average rainfall days in April - Arnold, MO
  • Average rainfall days in April: 14.7 days

The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and February (6.8 days).

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Average snowfall in April
Arnold, MO

Average snowfall in April - Arnold, MO
  • Average snowfall in April: 0"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in April
Arnold, MO

Average snowfall days in April - Arnold, MO
  • Average snowfall days in April: 0.1 days

The months with the highest number of snowfall days are January and February (4.8 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
Arnold, MO

Average daylight in April / Average sunshine in April - Arnold, MO
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in April: 8h and 2min

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

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Average sunshine days in April
Arnold, MO

Average sunshine days in April - Arnold, MO
  • Average sunshine days in April: 14 days

The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is June (11.6 days).

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Average UV index in April
Arnold, MO

Average UV index in April - Arnold, MO
  • 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).

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Average cloud cover in April
Arnold, MO

Average cloud cover in April - Arnold, MO
  • Average cloud cover in April: 41

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in April
Arnold, MO

Average visibility in April - Arnold, MO
  • 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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Arnold, Missouri, USA

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