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
May's arrival brings a temperature shift, moving from a fresh 52°F (11.1°C) in April to a refreshing 64.2°F (17.9°C). Ralph experiences a nighttime temperature average of 45.9°F (7.7°C) during May.Humidity
In May, the average relative humidity is 62%.Rainfall
The month with the most rainfall in Ralph is May, when the rain falls for 15.3 days and typically aggregates up to 2.48" (63mm) of precipitation.Snowfall
Months with snowfall in Ralph, South Dakota, are January through June, October through December. In Ralph, South Dakota, in May, during 1.4 snowfall days, 2.01" (51mm) of snow is typically accumulated. In Ralph, South Dakota, during the entire year, snow falls for 67.2 days and aggregates up to 24.69" (627mm) of snow.Daylight
The average length of the day in May in Ralph, South Dakota, is 14h and 58min.On the first day of the month, sunrise is at 5:38 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:05 am and sunset at 8:34 pm MDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Ralph in May?
What is the average humidity in May in Ralph?
What is the wettest month in Ralph?
How much does it rain in Ralph in May?
How much does it snow in Ralph in May?
What is the average length of the day in May in Ralph?
When are sunrise and sunset in May in Ralph?
How many hours of sunshine does Ralph have in May?
How high is the UV index in May in Ralph?
Average temperature in May
Ralph, SD
- Average high temperature in May: 64.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in May: 45.9°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in May
Ralph, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Ralph, SD
- Average wind speed in May: 11mph
The windiest months (with the highest average wind speed) are January and October (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).
Average humidity in May
Ralph, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (50%).
Average rainfall in May
Ralph, SD
- Average rainfall in May: 2.48"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in May
Ralph, SD
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is November (3 days).
Average snowfall in May
Ralph, SD
- Average snowfall in May: 2.01"
The month with the highest snowfall is February (4.84").
The months with the least snowfall are July, August and September (0").
Average snowfall days in May
Ralph, SD
- Average snowfall days in May: 1.4 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in May /
Average sunshine in May
Ralph, SD
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Ralph, SD
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in May
Ralph, SD
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in May
Ralph, SD
- Average cloud cover in May: 37
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in May
Ralph, 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).
Ralph, South Dakota, USA
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