April weather forecast
Webster Groves, MO

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Weather in April

In April, Webster Groves witnesses a definitive transition from winter to spring. The weather becomes more temperate, heralding the bloom of spring flowers across the city. However, increased rainfall characterizes this month, totaling at an average of 3.31" (84mm). Longer days, with excess of 13 hours of light and nearly nine hours of sunshine, invite residents outdoors. A shift in wardrobe is evident as lighter coats and rain gear start replacing heavy winter wear.

Temperature

April brings a temperature increase, with average high-temperatures moving from March's fresh 54.3°F (12.4°C) to an enjoyable 65.5°F (18.6°C). Webster Groves observes an average nighttime temperature of 48°F (8.9°C) during April.

Humidity

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

Rainfall

In Webster Groves, in April, it is raining for 14.8 days, with typically 3.31" (84mm) of accumulated precipitation. In Webster Groves, during the entire year, the rain falls for 144.8 days and collects up to 30.59" (777mm) of precipitation.

Snowfall

In Webster Groves, snow does not fall in April through October.

Daylight

The average length of the day in April is 13h and 14min.
On the first day of April, sunrise is at 6:44 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.

Sunshine

In Webster Groves, the average sunshine in April is 8.6h.

UV index

In Webster Groves, the average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 5 in April translates into the following recommendations:
Take precautions - Protection against sun damage is advised. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in April?

The high-temperature, in April, in Webster Groves, records 65.5°F (18.6°C), while the low-temperature is 48°F (8.9°C).

What is the average humidity in April?

The average relative humidity in April is 75%.

How much does it rain in Webster Groves in April?

In April, the rain falls for 14.8 days. Throughout April, 3.31" (84mm) of precipitation is accumulated.

When it does not snow?

In Webster Groves, snow does not fall in April through October.

Does it snow 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?

The average day length in April is 13h and 14min.

When is the sunrise / sunset in April?

In April, on the first day of the month, sunrise is at 6:44 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 long on average sun shines in April?

The average sunshine duration in April is 8.6h.

How high is the UV index in April?

In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Webster Groves, MO

Average temperature in April - Webster Groves, MO
  • Average high temperature in April: 65.5°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 (37.8°F).

  • Average low temperature in April: 48°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in April
Webster Groves, MO

Average pressure in April - Webster Groves, 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).

Average wind speed in April
Webster Groves, MO

Average wind speed in April - Webster Groves, MO
  • Average wind speed in April: 8.9mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in April
Webster Groves, MO

Average humidity in April - Webster Groves, 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 (70%).

Average rainfall in April
Webster Groves, MO

Average rainfall in April - Webster Groves, MO
  • Average rainfall in April: 3.31"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

Average rainfall days in April
Webster Groves, MO

Average rainfall days in April - Webster Groves, MO
  • Average rainfall days in April: 14.8 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

Average snowfall in April
Webster Groves, MO

Average snowfall in April - Webster Groves, 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").

Average snowfall days in April
Webster Groves, MO

Average snowfall days in April - Webster Groves, MO
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in April /
Average sunshine in April
Webster Groves, MO

Average daylight in April / Average sunshine in April - Webster Groves, 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 4min

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
Webster Groves, MO

Average sunshine days in April - Webster Groves, MO
  • Average sunshine days in April: 14.2 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

Average UV index in April
Webster Groves, MO

Average UV index in April - Webster Groves, 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).

Average cloud cover in April
Webster Groves, MO

Average cloud cover in April - Webster Groves, MO
  • Average cloud cover in April: 41

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in April
Webster Groves, MO

Average visibility in April - Webster Groves, 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).

Webster Groves, Missouri, USA

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