May weather forecast
Martin, SD

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Weather in May

May, the last month of the spring in Martin, is a refreshing month, with temperature in the range of an average high of 65.1°F (18.4°C) and an average low of 47.1°F (8.4°C).

Temperature

As May arrives, a rise in the average high-temperature is observed, moving from 55.4°F (13°C) in April to a still refreshing 65.1°F (18.4°C). An average minimum temperature of 47.1°F (8.4°C) marks the month of May.

Humidity

In Martin, the average relative humidity in May is 62%.

Rainfall

May is the month with the most rainfall. Rain falls for 15 days and accumulates 2.4" (61mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 1.6 snowfall days, in May, Martin aggregates 2.17" (55mm) of snow. In Martin, during the entire year, snow falls for 47.3 days and aggregates up to 19.76" (502mm) of snow.

Daylight

In Martin, the average length of the day in May is 14h and 41min.
On the first day of the month, sunrise is at 5:39 am and sunset at 7:48 pm. On the last day of May, sunrise is at 5:09 am and sunset at 8:19 pm MDT.

Sunshine

In Martin, the average sunshine in May is 9.9h.

UV index

The average daily maximum UV index in May in Martin is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Jun 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

May temperatures vary between a high-temperature of 65.1°F (18.4°C) and a low-temperature of 47.1°F (8.4°C).

What is the average humidity in May?

In Martin, the average relative humidity in May is 62%.

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 15 days and accumulates 2.4" (61mm) of precipitation.

How many days does it rain in May?

In Martin, during May, the rain falls for 15 days and regularly aggregates up to 2.4" (61mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 1.6 snowfall days, in May, Martin aggregates 2.17" (55mm) of snow.

What is the average length of the day in May in Martin?

The average day length in May is 14h and 41min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:39 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 5:09 am and sunset at 8:19 pm MDT.

How many hours of sunshine does Martin have in May?

In May, the average sunshine duration is 9.9h.

What is the UV index intensity in May?

In Martin, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's 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
Martin, SD

Average temperature in May - Martin, SD
  • Average high temperature in May: 65.1°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in May: 47.1°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure in May
Martin, SD

Average pressure in May - Martin, SD
  • Average pressure in May: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in May
Martin, SD

Average wind speed in May - Martin, SD
  • Average wind speed in May: 11.9mph

The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).

Average humidity in May
Martin, SD

Average humidity in May - Martin, SD
  • Average humidity in May: 62%

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are August and September (51%).

Average rainfall in May
Martin, SD

Average rainfall in May - Martin, SD
  • Average rainfall in May: 2.4"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in May
Martin, SD

Average rainfall days in May - Martin, SD
  • Average rainfall days in May: 15 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is December (2.8 days).

Average snowfall in May
Martin, SD

Average snowfall in May - Martin, SD
  • Average snowfall in May: 2.17"

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July and August (0").

Average snowfall days in May
Martin, SD

Average snowfall days in May - Martin, SD
  • Average snowfall days in May: 1.6 days

The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Martin, 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 6min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

Average sunshine days in May
Martin, SD

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

The month with the most sunshine days is December (21 days).
The month with the least sunshine days is July (11.8 days).

Average UV index in May
Martin, SD

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Martin, SD

Average cloud cover in May - Martin, SD
  • Average cloud cover in May: 35

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in May
Martin, SD

Average visibility in May - Martin, 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).

Martin, South Dakota, USA

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