May weather forecast
Lennox, SD

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Weather in May

May sees Lennox truly emerge into spring, characterized by warmer days and a bloom in vegetation. Although rainfall is at its peak, averaging at 2.6" (66mm), there's also an increase in sunshine hours. The frequency of rainfall enhances the growth and greenery of the land. The start of summer is just around the corner, and the excitement is palpable. Apart from the rains, weather conditions are mostly pleasant, drawing locals and visitors outdoors.

Temperature

The shift into May brings an increase in the average high-temperature, moving from a mild 56.7°F (13.7°C) in April to a pleasant 68.4°F (20.2°C). Lennox's average low-temperature during May nights is observed to be a cool 50.7°F (10.4°C).

Humidity

The average relative humidity in May is 69%.

Rainfall

In Lennox, in May, during 16 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Lennox, during the entire year, the rain falls for 111.7 days and collects up to 17.76" (451mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Lennox aggregates 0.12" (3mm) of snow. In Lennox, during the entire year, snow falls for 38.7 days and aggregates up to 12.76" (324mm) of snow.

Daylight

In May, the average length of the day is 14h and 43min.
On the first day of May, sunrise is at 6:19 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 9:00 pm CDT.

Sunshine

The average sunshine in May is 8.7h.

UV index

In Lennox, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 5 in May interprets into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.

Frequently asked questions

What is the usual temperature for Lennox in May?

In May, in Lennox, the average high-temperature is 68.4°F (20.2°C), and the average low-temperature is 50.7°F (10.4°C).

What is the average humidity in May?

In May, the average relative humidity is 69%.

How many days does it rain in May?

In Lennox, in May, during 16 rainfall days, 2.6" (66mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Lennox aggregates 0.12" (3mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 43min.

What time are sunrise and sunset in May?

On the first day of May in Lennox, sunrise is at 6:19 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 9:00 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.7h.

How high is the UV index in May?

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Lennox, SD

Average temperature in May - Lennox, SD
  • Average high temperature in May: 68.4°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in May: 50.7°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in May
Lennox, SD

Average pressure in May - Lennox, SD
  • Average pressure in May: 29.92"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
Lennox, SD

Average wind speed in May - Lennox, SD
  • Average wind speed in May: 9.7mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

Average humidity in May
Lennox, SD

Average humidity in May - Lennox, SD
  • Average humidity in May: 69%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (66%).

Average rainfall in May
Lennox, SD

Average rainfall in May - Lennox, SD
  • Average rainfall in May: 2.6"

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January, February and November (0.47").

Average rainfall days in May
Lennox, SD

Average rainfall days in May - Lennox, SD
  • Average rainfall days in May: 16 days

The months with the highest number of rainy days are May and June (16 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in May
Lennox, SD

Average snowfall in May - Lennox, SD
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Lennox, SD

Average snowfall days in May - Lennox, SD
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Lennox, SD

Average daylight in May / Average sunshine in May - Lennox, SD
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in May
Lennox, SD

Average sunshine days in May - Lennox, SD
  • Average sunshine days in May: 13 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.5 days).

Average UV index in May
Lennox, SD

Average UV index in May - Lennox, SD
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in May
Lennox, SD

Average cloud cover in May - Lennox, SD
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in May
Lennox, SD

Average visibility in May - Lennox, 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).

Lennox, South Dakota, USA

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