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
The transition from April to May brings a temperature rise, with average high-temperatures increasing from a comfortable 65.5°F (18.6°C) to a moderately hot 74.7°F (23.7°C). During May, Defiance consistently records a temperature low averaging a refreshing 56.7°F (13.7°C).Humidity
With an average relative humidity of 79%, May is the most humid month.Rainfall
In May, the rain falls for 17.2 days. Throughout May, 3.78" (96mm) of precipitation is accumulated. Throughout the year, there are 152.1 rainfall days, and 32.01" (813mm) of precipitation is accumulated.Snowfall
In Defiance, snow does not fall in May through October.Daylight
The average length of the day in May is 14h and 17min.On the first day of May, sunrise is at 6:04 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:21 pm CDT.
Sunshine
The average sunshine in May is 9.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 6 in May translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the most humid month?
What is the average humidity in May in Defiance?
How much does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Defiance, MO
- Average high temperature in May: 74.7°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in May: 56.7°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in May
Defiance, 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
Defiance, MO
- Average wind speed in May: 7.1mph
The windiest months (with the highest average wind speed) are January and February (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Defiance, MO
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Defiance, MO
- Average rainfall in May: 3.78"
The wettest month (with the highest rainfall) is April (3.82").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in May
Defiance, MO
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Defiance, MO
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Defiance, MO
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.3 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
Defiance, 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 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 42min).
Average sunshine days in May
Defiance, MO
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in May
Defiance, MO
- Average UV index in May: 6
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, November and December (UV index 2).
Average cloud cover in May
Defiance, MO
- Average cloud cover in May: 36
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 May
Defiance, 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).
Defiance, Missouri, USA
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