May weather forecast
Royal Oak, MI

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Weather in May

May reveals the face of spring in full bloom in Royal Oak, Michigan. It's the time of the year when temperatures start to rise significantly, reaching up to a comfortable 67.6°F (19.8°C). This month experiences almost no snow, with just 0.43" (11mm), signalling the definitive end of the winter season. It also heralds the arrival of outdoor activities suitable for warm conditions. From farmers markets to bankside picnics along the Red Run Drain River, the city comes alive under the longer May daylight hours.

Temperature

May's arrival in Royal Oak coincides with a rise in the average high-temperature, moving from April's cool 54.1°F (12.3°C) to a refreshing 67.6°F (19.8°C). Throughout the month of May, the average temperature dips to a chilly 49.8°F (9.9°C) at night.

Humidity

In Royal Oak, the average relative humidity in May is 74%.

Rainfall

May is the month with the most rainfall. Rain falls for 17.3 days and accumulates 2.72" (69mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Royal Oak, Michigan. May is the last month it regularly snows. During 0.1 snowfall days, in May, Royal Oak aggregates 0.43" (11mm) of snow. In Royal Oak, during the entire year, snow falls for 53 days and aggregates up to 15.43" (392mm) of snow.

Daylight

In Royal Oak, Michigan, the average length of the day in May is 14h and 38min.
On the first day of the month, sunrise is at 6:26 am and sunset at 8:32 pm. On the last day of May, sunrise is at 5:57 am and sunset at 9:02 pm EDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

In Royal Oak, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the usual temperature for Royal Oak in May?

In Royal Oak, in May, the average high-temperature is 67.6°F (19.8°C), and the average low-temperature is 49.8°F (9.9°C).

What is the average humidity in May in Royal Oak?

In May, the average relative humidity is 74%.

What is the rainiest month in Royal Oak?

May is the month with the most rainfall in Royal Oak. Rain falls for 17.3 days and accumulates 2.72" (69mm) of precipitation.

How many days does it rain in May in Royal Oak?

In Royal Oak, Michigan, in May, it is raining for 17.3 days, with typically 2.72" (69mm) of accumulated precipitation.

What is the last month it snows in Royal Oak?

May is the last month it regularly snows in Royal Oak, Michigan. During 0.1 snowfall days, in May, Royal Oak aggregates 0.43" (11mm) of snow.

How many hours of daylight does Royal Oak have in May?

In May, the average day length is 14h and 38min.

When is the sunrise / sunset in May in Royal Oak?

On the first day of May in Royal Oak, Michigan, sunrise is at 6:26 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 9:02 pm EDT.

How long on average sun shines in May in Royal Oak?

In May, the average sunshine duration in Royal Oak is 8.6h.

What is the UV index reading in May in Royal Oak?

In Royal Oak, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Royal Oak, MI

Average temperature in May - Royal Oak, MI
  • Average high temperature in May: 67.6°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in May: 49.8°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).

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Average pressure in May
Royal Oak, MI

Average pressure in May - Royal Oak, MI
  • Average pressure in May: 29.98"Hg

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Royal Oak, MI

Average wind speed in May - Royal Oak, MI
  • Average wind speed in May: 8.1mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

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Average humidity in May
Royal Oak, MI

Average humidity in May - Royal Oak, MI
  • Average humidity in May: 74%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (72%).

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Average rainfall in May
Royal Oak, MI

Average rainfall in May - Royal Oak, MI
  • Average rainfall in May: 2.72"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (1.3").

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Average rainfall days in May
Royal Oak, MI

Average rainfall days in May - Royal Oak, MI
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (6.4 days).

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Average snowfall in May
Royal Oak, MI

Average snowfall in May - Royal Oak, MI
  • Average snowfall in May: 0.43"

The month with the highest snowfall is February (4.37").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Royal Oak, MI

Average snowfall days in May - Royal Oak, MI
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Royal Oak, MI

Average daylight in May / Average sunshine in May - Royal Oak, MI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in May
Royal Oak, MI

Average sunshine days in May - Royal Oak, MI
  • Average sunshine days in May: 12 days

The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (10.3 days).

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Average UV index in May
Royal Oak, MI

Average UV index in May - Royal Oak, MI
  • Average UV index in May: 5

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

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Average cloud cover in May
Royal Oak, MI

Average cloud cover in May - Royal Oak, MI
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in May
Royal Oak, MI

Average visibility in May - Royal Oak, MI
  • Average visibility in May: 6mi

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

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Royal Oak, Michigan, USA

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