May weather forecast
Grants Pass, OR

Colorful balloons rise from the scenic grounds in a field near Grant Pass, Oregon
Colorful balloons rise from the scenic grounds in a field near Grant Pass, Oregon

Weather in May

May, the last month of the spring in Grants Pass, is a comfortable month, with an average temperature ranging between min 39.7°F (4.3°C) and max 66.7°F (19.3°C).

Temperature

In Grants Pass, the average high-temperature in May slightly increases from a moderate 57.9°F (14.4°C) in April to an enjoyable 66.7°F (19.3°C). In Grants Pass, in May, the average low-temperature is 39.7°F (4.3°C).

Humidity

In May, the average relative humidity is 74%.

Rainfall

In Grants Pass, it is raining for 11.8 days, with typically 1.69" (43mm) of accumulated precipitation. In Grants Pass, during the entire year, the rain falls for 135.3 days and collects up to 23.54" (598mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Grants Pass, the average length of the day in May is 14h and 38min.
On the first day of May, sunrise is at 6:07 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:43 pm PDT.

Sunshine

The average sunshine in May in Grants Pass is 9.9h.

UV index

In May, the average daily maximum UV index in Grants Pass is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in May in Grants Pass?

In Grants Pass, Oregon, the average relative humidity in May is 74%.

How much does it rain in Grants Pass in May?

In Grants Pass, in May, during 11.8 rainfall days, 1.69" (43mm) of precipitation is typically accumulated.

When it does not snow in Grants Pass?

In Grants Pass, Oregon, snow does not fall in May through October.

Does it snow in Grants Pass in May?

In May, in Grants Pass, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Grants Pass have in May?

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

When are sunrise and sunset in May in Grants Pass?

On the first day of May in Grants Pass, sunrise is at 6:07 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:43 pm PDT.

How long on average sun shines in May in Grants Pass?

In May, the average sunshine duration in Grants Pass, Oregon, is 9.9h.

What is the UV index intensity in May in Grants Pass?

In May, the average daily maximum UV index in Grants Pass, Oregon, is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.

Average temperature in May
Grants Pass, OR

Average temperature in May - Grants Pass, OR
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is August (84.7°F).
The month with the lowest average high temperature is December (46°F).

  • Average low temperature in May: 39.7°F

The month with the highest average low temperature is August (49.1°F).
The coldest month (with the lowest average low temperature) is December (31.5°F).

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Average pressure in May
Grants Pass, OR

Average pressure in May - Grants Pass, OR
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

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Average wind speed in May
Grants Pass, OR

Average wind speed in May - Grants Pass, OR
  • Average wind speed in May: 3.7mph

The windiest month (with the highest average wind speed) is March (4mph).
The calmest month (with the lowest average wind speed) is August (3.2mph).

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Average humidity in May
Grants Pass, OR

Average humidity in May - Grants Pass, OR
  • Average humidity in May: 74%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (63%).

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Average rainfall in May
Grants Pass, OR

Average rainfall in May - Grants Pass, OR
  • Average rainfall in May: 1.69"

The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is July (0.12").

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Average rainfall days in May
Grants Pass, OR

Average rainfall days in May - Grants Pass, OR
  • Average rainfall days in May: 11.8 days

The month with the highest number of rainy days is March (18.7 days).
The month with the least rainy days is August (2.5 days).

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Average snowfall in May
Grants Pass, OR

Average snowfall in May - Grants Pass, OR
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Grants Pass, OR

Average snowfall days in May - Grants Pass, OR
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Grants Pass, OR

Average daylight in May / Average sunshine in May - Grants Pass, OR
  • Average daylight in May: 14h and 38min

The month with the longest days is June (Average daylight: 15h and 14min).
The month with the shortest days is December (Average daylight: 9h and 8min).

  • Average sunshine in May: 9.9h

The months with the most sunshine are July and August (Average sunshine: 11.8h).
The month with the least sunshine is December (Average sunshine: 4.7h).

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Average sunshine days in May
Grants Pass, OR

Average sunshine days in May - Grants Pass, OR
  • Average sunshine days in May: 16.3 days

The month with the most sunshine days is July (26.7 days).
The month with the least sunshine days is March (10.8 days).

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Average UV index in May
Grants Pass, OR

Average UV index in May - Grants Pass, 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
Grants Pass, OR

Average cloud cover in May - Grants Pass, OR
  • Average cloud cover in May: 40

The month with the most cloud cover is March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in May
Grants Pass, OR

Average visibility in May - Grants Pass, OR
  • Average visibility in May: 5mi

The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).

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