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
As April transitions into May, a subtle temperature shift is observed, with average highs adjusting from a refreshing 66.9°F (19.4°C) to a warm 75.4°F (24.1°C). Throughout the nights in May, Derby experiences an average low-temperature of 57°F (13.9°C).Humidity
May is the most humid month, with an average relative humidity of 73%.Rainfall
May is the month with the most rainfall. Rain falls for 16.4 days and accumulates 4.65" (118mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Derby aggregates 0.04" (1mm) of snow. Throughout the year, there are 16.1 snowfall days, and 6.57" (167mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 13min.On the first day of May, sunrise is at 6:32 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:44 pm CDT.
Sunshine
In Derby, the average sunshine in May is 9.3h.UV index
In Derby, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 6 in May translates into this advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Derby in May?
What is the most humid month?
What is the average humidity in May?
What is the rainiest month?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Derby have in May?
When are sunrise and sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Derby, KS
- Average high temperature in May: 75.4°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in May: 57°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in May
Derby, KS
- Average pressure in May: 29.9"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in May
Derby, KS
- Average wind speed in May: 10.5mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in May
Derby, KS
- Average humidity in May: 73%
The month with the highest relative humidity is May (73%).
The months with the lowest relative humidity are July and October (62%).
Average rainfall in May
Derby, KS
- Average rainfall in May: 4.65"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in May
Derby, KS
- Average rainfall days in May: 16.4 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in May
Derby, KS
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Derby, KS
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Derby, KS
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 6min).
Average sunshine days in May
Derby, KS
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is January (22.8 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in May
Derby, KS
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Derby, KS
- Average cloud cover in May: 35
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in May
Derby, KS
- 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).
Derby, Kansas, USA
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