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 average high-temperature increases in May, moving from a moderate 56.5°F (13.6°C) in April to an agreeable 68.2°F (20.1°C). Hayes's average low-temperature in May is measured at a frosty 49.6°F (9.8°C).Humidity
In May, the average relative humidity is 60%.Rainfall
May is the month with the most rainfall in Hayes. Rain falls for 13.5 days and accumulates 2.09" (53mm) of precipitation.Snowfall
Months with snowfall in Hayes are January through May, October through December. May is the last month it regularly snows in Hayes. During 0.6 snowfall days, in May, Hayes aggregates 0.75" (19mm) of snow. In Hayes, during the entire year, snow falls for 38.8 days and aggregates up to 16.1" (409mm) of snow.Daylight
In Hayes, the average length of the day in May is 14h and 49min.On the first day of May in Hayes, sunrise is at 5:33 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:02 am and sunset at 8:20 pm MDT.
Sunshine
In May, the average sunshine in Hayes is 9.8h.UV index
In May, the average daily maximum UV index in Hayes is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Undertake protective steps - Preventing sun damage is advised. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the usual temperature for Hayes in May?
What is the average humidity in May in Hayes?
What is the wettest month in Hayes?
How many days does it rain in May in Hayes?
What is the last month it snows in Hayes?
What is the average length of the day in May in Hayes?
When is the sunrise / sunset in May in Hayes?
How long on average sun shines in May in Hayes?
What is the UV index intensity in May in Hayes?
Average temperature in May
Hayes, SD
- Average high temperature in May: 68.2°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in May: 49.6°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 (16.7°F).
Average pressure in May
Hayes, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Hayes, SD
- Average wind speed in May: 11.3mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is February (10.1mph).
Average humidity in May
Hayes, SD
- Average humidity in May: 60%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is September (47%).
Average rainfall in May
Hayes, SD
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in May
Hayes, SD
- Average rainfall days in May: 13.5 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in May
Hayes, SD
- Average snowfall in May: 0.75"
The month with the highest snowfall is February (3.15").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Hayes, SD
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is February (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Hayes, SD
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in May
Hayes, SD
- Average sunshine days in May: 15 days
The month with the most sunshine days is December (21.1 days).
The months with the least sunshine days are April and June (14.1 days).
Average UV index in May
Hayes, SD
- Average UV index in May: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Hayes, SD
- Average cloud cover in May: 35
The month with the most cloud cover is January (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in May
Hayes, SD
- 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).
Hayes, South Dakota, USA
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