May weather forecastLemmon, SD
May
Weather in May
In May, Lemmon basks in the heart of spring, with weather conditions contrasting significantly from those of April. With an average high temperature reaching to 64.9°F (18.3°C), the city experiences an increased frequency of rain showers. The city receives the year's highest rainfall level, with up to 2.2" (56mm) of rain over about 14 days adding freshness to the verdant surroundings. The May weather is characterized by increased daylight hours, conducive to outdoor activities. The city enters a period of weather optimality, with a balanced combination of temperature, humidity, and precipitation.Temperature
In Lemmon, the average high-temperature in May rises, from a cool 52.3°F (11.3°C) in April, to an enjoyable 64.9°F (18.3°C). In May, Lemmon experiences a temperature dip to an average of 46.2°F (7.9°C) at night.Humidity
The average relative humidity in May is 62%.Rainfall
In Lemmon, South Dakota, in May, during 13.8 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. In Lemmon, South Dakota, during the entire year, the rain falls for 101.3 days and collects up to 14.25" (362mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 1.4 snowfall days, in May, Lemmon aggregates 1.34" (34mm) of snow. In Lemmon, during the entire year, snow falls for 65.8 days and aggregates up to 21.42" (544mm) of snow.Daylight
In Lemmon, the average length of the day in May is 14h and 58min.On the first day of the month, sunrise is at 5:34 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:01 am and sunset at 8:31 pm MDT.
Sunshine
In May, the average sunshine is 9.6h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 during May translates into the following guidance:
Guard yourself - An obligation to protect skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lemmon, SD
- Average high temperature in May: 64.9°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 (25.2°F).
- Average low temperature in May: 46.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in May
Lemmon, SD
- Average pressure in May: 29.92"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
Lemmon, SD
- Average wind speed in May: 11mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in May
Lemmon, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall in May
Lemmon, SD
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Lemmon, SD
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in May
Lemmon, SD
- Average snowfall in May: 1.34"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Lemmon, SD
- Average snowfall days in May: 1.4 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Lemmon, 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 36min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Lemmon, SD
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in May
Lemmon, SD
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Lemmon, SD
- Average cloud cover in May: 36
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
Lemmon, 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).
