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United StatesThe weather in April in Saint Louis
It's pleasantly warm in April in Saint Louis with an average temperature of 20°C. Temperatures this month range from a low of 15°C to a high of 23°C. At night, you can expect temperatures between 3°C and 11°C.
Looking for sun? April isn’t a good month to be in Saint Louis. The temperature is nice, but there’s too much chance of rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in April for Saint Louis, Missouri. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 32°C in 2020, Saint Louis reached the highest temperature in April over the past 10 years. The lowest daytime temperature in this month was 5°C in 2018. The extreme nighttime temperatures ranged from a lowest recorded value of -4°C to a highest value of 19°C.
Precipitation and snowfall
In April, there is an average of 211 mm of precipitation, spread over 19 days. Of the total precipitation, about 0,1 cm falls as snow in April. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in April for Saint Louis
Click on any day in April to get detailed info about the usual weather on that day in Saint Louis. Check out the historical temperatures and precipitation over the past 10 years on this day.
April weather comparison
| Saint Louis | New York | |
|---|---|---|
| Average temperature | 20°C | 17°C |
| Max. temperature | 23°C | 22°C |
| Min. temperature | 3°C | -5°C |
| Total precipitation | 211 mm | 81 mm |
| Rainy days | 19 days | 11 days |
| Total snowfall | 0,1 cm | 0,4 cm |
| Snowy days | 1 day | 1 day |
Start of April
The month of April starts in Saint Louis with mild temps, averaging around 20°C during the day and nights around 8°C.
Mid April
By mid-April, daytime temps rise to around 21°C, with nights around 10°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of April
By the end of April, the average daytime temperature in Saint Louis is around 22°C, while nighttime temps are about 10°C. There’s a significant chance of many days with precipitation.
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UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Saint Louis for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in April in Saint Louis, Missouri. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in April in Saint Louis
Temperature in April in Saint Louis over the years
Precipitation charts
These charts show the average amount of precipitation in April in Saint Louis, Missouri. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in April in Saint Louis
Total precipitation in April in Saint Louis over the years
Daily Snowfall in April in Saint Louis
Snowfall in April in Saint Louis per year
Daily UV index in April in Saint Louis
This chart shows the average daily UV index in April in Saint Louis, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in April in Saint Louis
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Average weather in Saint Louis by month
Click on a month below to see detailed weather info for Saint Louis. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.