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Caseyville Weather in May

May in Caseyville averages 25°C (77°F) during the day and 14°C (57°F) at night. Quite a bit of rainfall is typical this month, with around 134 mm (5.3 in) on average. An umbrella is a good idea.

Rainfall in Caseyville in May

This month experiences about 14 days of rain according to historical data, averaging 134 mm (5.3 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.

Temperature in Caseyville in May

In May, Caseyville sees high temperatures, with highs of 25°C (77°F). Nights drop to around 14°C (57°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 14°C (57°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Caseyville in May

The month enjoys around 269 hours of sunshine, creating mostly sunny days with good weather conditions.

Should you favor a climate that's both dry and comfortably warm, September and October typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Caseyville's climate page.

Caseyville Temperature in May

Min TemperatureMin Temperature 14°C (57°F)  
Max TemperatureMax Temperature 25°C (77°F)  
Chance of RainChance of Rain 47%  
PrecipitationPrecipitation 134 mm (5.3 in)  
Rainy daysRainy days 14 days  
HumidityHumidity 65% *  
SunshineSunshine 269 hours *  
Percentage SunshinePercentage Sunshine 60% *  
* Data from: St. Louis, the United States of America (14 KM, 9 Miles).

Best Places in the United States of America in May

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Caseyville in May

Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Caseyville in May

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
9/10
Cycling
9/10
Walking
9/10
Camping
6/10
Outdoor sports
9/10

Select a Month

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United States of America, check out our Caseyville's climate page.

More climate data for Caseyville