May weather - Spring 2024

Weather in May
Frequently asked questions
Average temperature in May
Average pressure in May
Average wind speed in May
Average humidity in May
Average rainfall in May
Average rainfall days in May
Average snowfall in May
Average snowfall days in May
Average daylight in May
Average sunshine in May
Average sunshine days in May
Average UV index in May
Average cloud cover in May
Average visibility in May

An evening shot of the leafy town of Salem in Oregon

Weather in May

In May, the city of Salem is in the full bloom of spring. This is underlined by a sharp reduction in rainfall (formed about 1.46") and an increased daylight period. May maintains a dry weather pattern, ensuring a vibrant outdoor ambiance. The comfortable weather conditions become favorable for a variety of outdoor public events and gatherings.

Temperature

The arrival of May brings a soft temperature shift, with the average high-temperature nudging from a mild 58.8°F in April to a still refreshing 66.7°F. Salem reports a significant contrast between daytime and nighttime temperatures, with an average low of 42.8°F in May.

Humidity

In May, the average relative humidity in Salem is 76%.

Rainfall

In Salem, in May, during 13.4 rainfall days, 1.46" of precipitation is typically accumulated. Throughout the year, in Salem, there are 162.5 rainfall days, and 25.08" of precipitation is accumulated.

Snowfall

In Salem, snow does not fall in April through October.

Daylight

In May, the average length of the day is 14h and 52min.
On the first day of the month, sunrise is at 6:01 am and sunset at 8:17 pm. On the last day of May, in Salem, Oregon, sunrise is at 5:29 am and sunset at 8:50 pm PDT.

Sunshine

In Salem, Oregon, the average sunshine in May is 8.6h.

UV index

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In May, a daily UV index of 4 turns into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.

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FAQ

What is the usual temperature for Salem in May?

The high-temperature during May is 66.7°F and the low-temperature is 42.8°F.

What is the average humidity in May in Salem?

In May, the average relative humidity in Salem is 76%.

How much does it rain in Salem in May?

In Salem, in May, during 13.4 rainfall days, 1.46" of precipitation is typically accumulated.

When it does not snow in Salem?

In Salem, snow does not fall in April through October.

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

In Salem, the average day length in May is 14h and 52min.

When are sunrise and sunset in May in Salem?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 8:17 pm. On the last day of the month, in Salem, Oregon, sunrise is at 5:29 am and sunset at 8:50 pm PDT.

How many hours of sunshine does Salem have in May?

The average sunshine duration in May in Salem is 8.6h.

What is the UV index intensity in May in Salem?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

58.8°F

66.7°F

72.3°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.7mph

5mph

4.9mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

17.7

13.4

10.8

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.3

16.3

17.2

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Salem, OR

Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (45.5°F).

Average low temperature in May: 42.8°F

The month with the highest average low temperature is August (54.1°F).
The coldest month (with the lowest average low temperature) is December (34.5°F).

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Average pressure in May
Salem, OR

Average pressure in May: 30.04"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in May
Salem, OR

Average wind speed in May: 4.5mph

The windiest months (with the highest average wind speed) are January, March and November (5.5mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in May
Salem, OR

Average humidity in May: 76%

The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in May
Salem, OR

Average rainfall in May: 1.46"

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is July (0.28").

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Average rainfall days in May
Salem, OR

Average rainfall days in May: 13.4 days

The month with the highest number of rainy days is March (19.6 days).
The month with the least rainy days is July (3.9 days).

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Average snowfall in May
Salem, OR

Average snowfall in May: 0"

The month with the highest snowfall is February (1.18").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Salem, OR

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Salem, OR

Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

Average sunshine in May: 8h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

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Average sunshine days in May
Salem, OR

Average sunshine days in May: 16.3 days

The month with the most sunshine days is July (26.3 days).
The month with the least sunshine days is March (8.8 days).

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Average UV index in May
Salem, OR

Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Salem, OR

Average cloud cover in May: 48

The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in May
Salem, OR

Average visibility in May: 5mi

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

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May weather forecast
Salem, OR

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