May weather forecast
Montrose, SD

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Weather in May

May, the last month of the spring in Montrose, is an enjoyable month, with an average temperature varying between 50°F (10°C) and 67.3°F (19.6°C).

Temperature

An escalation in the average high-temperature is seen with the onset of May, moving from a moderate 55.4°F (13°C) in April to a still refreshing 67.3°F (19.6°C). Montrose's temperature drops to an average low of 50°F (10°C) during the nights of May.

Humidity

In Montrose, the average relative humidity in May is 69%.

Rainfall

In Montrose, during May, the rain falls for 17.1 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Montrose, during the entire year, the rain falls for 118.3 days and collects up to 22.76" (578mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Montrose aggregates 0.24" (6mm) of snow. In Montrose, during the entire year, snow falls for 45.4 days and aggregates up to 19.33" (491mm) of snow.

Daylight

In May, the average length of the day is 14h and 44min.
On the first day of the month, sunrise is at 6:19 am and sunset at 8:31 pm. On the last day of May, sunrise is at 5:49 am and sunset at 9:03 pm CDT.

Sunshine

The average sunshine in May is 8.7h.

UV index

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Montrose in May?

The high-temperature, in May, in Montrose, is 67.3°F (19.6°C), while the low-temperature averages to 50°F (10°C).

What is the average humidity in May in Montrose?

In Montrose, the average relative humidity in May is 69%.

How many days does it rain in May?

In Montrose, South Dakota, in May, during 17.1 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows in Montrose, South Dakota. During 0.2 snowfall days, in May, Montrose aggregates 0.24" (6mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 44min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 6:19 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 9:03 pm CDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.7h.

What is the UV index reading in May?

In Montrose, South Dakota, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Montrose, SD

Average temperature in May - Montrose, SD
  • Average high temperature in May: 67.3°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in May: 50°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 (9.3°F).

Average pressure in May
Montrose, SD

Average pressure in May - Montrose, 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 (29.85"Hg).

Average wind speed in May
Montrose, SD

Average wind speed in May - Montrose, SD
  • Average wind speed in May: 9.9mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in May
Montrose, SD

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

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).

Average rainfall in May
Montrose, SD

Average rainfall in May - Montrose, SD
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is February (0.63").

Average rainfall days in May
Montrose, SD

Average rainfall days in May - Montrose, SD
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in May
Montrose, SD

Average snowfall in May - Montrose, SD
  • Average snowfall in May: 0.24"

The month with the highest snowfall is December (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Montrose, SD

Average snowfall days in May - Montrose, SD
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Montrose, 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 0min).

Average sunshine days in May
Montrose, SD

Average sunshine days in May - Montrose, SD
  • Average sunshine days in May: 12.1 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in May
Montrose, SD

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Montrose, SD

Average cloud cover in May - Montrose, SD
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in May
Montrose, SD

Average visibility in May - Montrose, 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).

Montrose, South Dakota, USA

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