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
In Delmont, stepping into May brings a temperature increase, moving up from April's mild 57.6°F (14.2°C) to an agreeable 68.5°F (20.3°C). In Delmont, the average temperature during the nights of May drops to a cool 50.5°F (10.3°C).Humidity
In Delmont, South Dakota, the average relative humidity in May is 69%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.2 days and typically aggregates up to 3.31" (84mm) of precipitation.Snowfall
In Delmont, snow does not fall in May through September.Daylight
In Delmont, South Dakota, the average length of the day in May is 14h and 42min.On the first day of the month, sunrise is at 6:24 am and sunset at 8:34 pm. On the last day of May, in Delmont, sunrise is at 5:55 am and sunset at 9:05 pm CDT.
Sunshine
The average sunshine in May is 8.9h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 5 during May translates into the following guidance:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What is the average May temperature in Delmont?
What is the average humidity in May in Delmont?
What is the rainiest month in Delmont?
How much does it rain in Delmont in May?
When it does not snow in Delmont?
Does it snow in Delmont in May?
What is the average length of the day in May in Delmont?
What time are sunrise and sunset in May in Delmont?
How many hours of sunshine does Delmont have in May?
What is the UV index intensity in May in Delmont?
Average temperature in May
Delmont, SD
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in May
Delmont, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Delmont, SD
- Average wind speed in May: 9.8mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in May
Delmont, SD
- Average humidity in May: 69%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (63%).
Average rainfall in May
Delmont, SD
- Average rainfall in May: 3.31"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in May
Delmont, SD
- Average rainfall days in May: 15.2 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in May
Delmont, SD
- Average snowfall in May: 0"
The month with the highest snowfall is December (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Delmont, SD
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Delmont, SD
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in May
Delmont, SD
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in May
Delmont, SD
- Average UV index in May: 5
The months with the highest UV index are 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
Delmont, SD
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in May
Delmont, 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).
Delmont, South Dakota, USA
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