May weather forecast
Brookings, SD

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Weather in May

May ensures the concluding stage of spring in Brookings, as daily temperature averages crest at an enjoyable 65.8°F (18.8°C). Nothing is quite as refreshing as the springtime bloom giving way to the hush of early summer. Rainfall reaches its peak of 2.72" (69mm) during this month, fostering the vegetation before summer takes over and starts searing the lush fields. The move from May to June reveals the start of long summer days. As the sun’s hold strengthens, the influx of the summer season is imminent.

Temperature

As May arrives, a rise in the average high-temperature is observed, moving from a fresh 53.1°F (11.7°C) in April to an enjoyable 65.8°F (18.8°C). Brookings cools down to an average low-temperature of 48.4°F (9.1°C) throughout the month of May.

Humidity

In May, the average relative humidity is 70%.

Rainfall

In Brookings, in May, during 16.4 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, there are 125.5 rainfall days, and 21.65" (550mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, Brookings aggregates 0.16" (4mm) of snow. In Brookings, during the entire year, snow falls for 61.5 days and aggregates up to 21.38" (543mm) of snow.

Daylight

The average length of the day in May is 14h and 48min.
On the first day of May, sunrise is at 6:16 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 9:03 pm CDT.

Sunshine

In May, the average sunshine is 8.8h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in May interprets into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.

Frequently asked questions

What are the temperatures in May?

An average high-temperature, in May, in Brookings, is 65.8°F (18.8°C) and the average low-temperature is 48.4°F (9.1°C).

What is the average humidity in May in Brookings?

In May, the average relative humidity in Brookings is 70%.

How many days does it rain in May?

In Brookings, in May, it is raining for 16.4 days, with typically 2.72" (69mm) of accumulated precipitation.

What is the last month it snows?

May is the last month it regularly snows in Brookings. During 0.4 snowfall days, in May, Brookings aggregates 0.16" (4mm) of snow.

How many hours of daylight does Brookings have in May?

In Brookings, the average day length in May is 14h and 48min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:16 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 9:03 pm CDT.

How long on average sun shines in May?

In Brookings, the average sunshine duration in May is 8.8h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
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
Brookings, SD

Average temperature in May - Brookings, SD
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in May: 48.4°F

The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7°F).

Average pressure in May
Brookings, SD

Average pressure in May - Brookings, SD
  • Average pressure in May: 29.92"Hg

The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in May
Brookings, SD

Average wind speed in May - Brookings, SD
  • Average wind speed in May: 10.1mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).

Average humidity in May
Brookings, SD

Average humidity in May - Brookings, SD
  • Average humidity in May: 70%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (68%).

Average rainfall in May
Brookings, SD

Average rainfall in May - Brookings, SD
  • Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is November (0.67").

Average rainfall days in May
Brookings, SD

Average rainfall days in May - Brookings, SD
  • Average rainfall days in May: 16.4 days

The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in May
Brookings, SD

Average snowfall in May - Brookings, SD
  • Average snowfall in May: 0.16"

The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Brookings, SD

Average snowfall days in May - Brookings, SD
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Brookings, 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: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Brookings, SD

Average sunshine days in May - Brookings, SD
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (8.3 days).

Average UV index in May
Brookings, SD

Average UV index in May - Brookings, 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 January (UV index 1).

Average cloud cover in May
Brookings, SD

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

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 28).

Average visibility in May
Brookings, SD

Average visibility in May - Brookings, SD
  • Average visibility in May: 6mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

Brookings, South Dakota, USA

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