May weather forecast
Monroe, SD

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Weather in May

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

Temperature

May's onset is marked by a temperature increase, moving from a mild 55.4°F (13°C) in April to an enjoyable 67.3°F (19.6°C). The average nighttime temperature lowers to a cool 50°F (10°C) throughout May.

Humidity

In May, the average relative humidity is 69%.

Rainfall

In Monroe, during May, the rain falls for 17.1 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Monroe, 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, Monroe aggregates 0.24" (6mm) of snow. In Monroe, during the entire year, snow falls for 45.4 days and aggregates up to 19.33" (491mm) of snow.

Daylight

In Monroe, the average length of the day in May is 14h and 43min.
On the first day of May, sunrise is at 6:20 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 9:02 pm CDT.

Sunshine

The average sunshine in May is 8.7h.

UV index

In Monroe, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 5 during May morphs into the following directions:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. It's recommended to limit sun exposure when its radiation is at its peak during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.

Frequently asked questions

What are May temperatures?

The high-temperature, in May, in Monroe, 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 Monroe?

The average relative humidity in May is 69%.

How many days does it rain in May?

In Monroe, in May, it is raining for 17.1 days, with typically 3.19" (81mm) of accumulated precipitation.

What is the last month it snows?

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

What is the average length of the day in May?

In Monroe, South Dakota, the average day length in May is 14h and 43min.

When is the sunrise / sunset in May?

On the first day of May in Monroe, sunrise is at 6:20 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 9:02 pm CDT.

How long on average sun shines in May?

In Monroe, the average sunshine duration in May is 8.7h.

What is the UV index intensity in May?

The average daily maximum UV index in May 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Monroe, SD

Average temperature in May - Monroe, 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
Monroe, SD

Average pressure in May - Monroe, 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
Monroe, SD

Average wind speed in May - Monroe, 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
Monroe, SD

Average humidity in May - Monroe, 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
Monroe, SD

Average rainfall in May - Monroe, 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
Monroe, SD

Average rainfall days in May - Monroe, 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
Monroe, SD

Average snowfall in May - Monroe, 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
Monroe, SD

Average snowfall days in May - Monroe, 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
Monroe, SD

Average daylight in May / Average sunshine in May - Monroe, 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
Monroe, SD

Average sunshine days in May - Monroe, 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
Monroe, SD

Average UV index in May - Monroe, 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
Monroe, SD

Average cloud cover in May - Monroe, 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
Monroe, SD

Average visibility in May - Monroe, 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).

Monroe, South Dakota, USA

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