Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
With the arrival of May in Chesterfield, the average high-temperature transitions from a comfortable 65.8°F (18.8°C) in April to a warm 75°F (23.9°C). Chesterfield, during the month of May, experiences an average low-temperature of 57°F (13.9°C).Humidity
With an average relative humidity of 78%, May is the most humid month in Chesterfield.Rainfall
The month with the most rainfall in Chesterfield is May, when the rain falls for 16.3 days and typically aggregates up to 3.19" (81mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Chesterfield, the average length of the day in May is 14h and 18min.On the first day of the month, sunrise is at 6:03 am and sunset at 7:54 pm. On the last day of May, in Chesterfield, sunrise is at 5:39 am and sunset at 8:20 pm CDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
In Chesterfield, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 6 in May translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Frequently asked questions
What is the usual temperature for Chesterfield in May?
What is the most humid month in Chesterfield?
What is the average humidity in May in Chesterfield?
What is the wettest month in Chesterfield?
How much does it rain in Chesterfield in May?
When it does not snow in Chesterfield?
How many hours of daylight does Chesterfield have in May?
When is the sunrise / sunset in May in Chesterfield?
How long on average sun shines in May in Chesterfield?
How high is the UV index in May in Chesterfield?
Average temperature in May
Chesterfield, MO
- Average high temperature in May: 75°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in May: 57°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in May
Chesterfield, MO
- Average pressure in May: 29.95"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 May
Chesterfield, MO
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).
Average humidity in May
Chesterfield, MO
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Chesterfield, MO
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (1.3").
Average rainfall days in May
Chesterfield, MO
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in May
Chesterfield, MO
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Chesterfield, MO
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Chesterfield, MO
- Average daylight in May: 14h and 2min
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 May: 9h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in May
Chesterfield, MO
- Average sunshine days in May: 12.8 days
The months with the most sunshine days are January and December (20.2 days).
The month with the least sunshine days is June (12 days).
Average UV index in May
Chesterfield, MO
- Average UV index in May: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Chesterfield, MO
- Average cloud cover in May: 36
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in May
Chesterfield, MO
- Average visibility in May: 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).
Chesterfield, Missouri, USA
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