May weather forecast
Blue River, OR

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Weather in May

May, the last month of the spring in Blue River, is a refreshing month, with an average temperature fluctuating between 40.6°F (4.8°C) and 63.9°F (17.7°C).

Temperature

With the onset of May, Blue River experiences a subtle temperature shift, with the average high-temperature moving from a moderate 55.9°F (13.3°C) in April to an enjoyable 63.9°F (17.7°C). A notable decrease from the day's highest temperature marks May, culminating in an average low of 40.6°F (4.8°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

In Blue River, in May, during 13.8 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. In Blue River, during the entire year, the rain falls for 167.6 days and collects up to 36.54" (928mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Blue River, the average length of the day in May is 14h and 47min.
On the first day of the month, sunrise is at 5:59 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:45 pm PDT.

Sunshine

In Blue River, the average sunshine in May is 8.3h.

UV index

In Blue River, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, the maximum UV index of 4 transforms into these recommendations:
Exercise prevention - Warding off sunburn is urged. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What is the usual temperature for Blue River in May?

During May, Blue River experiences an average high-temperature of 63.9°F (17.7°C) and a low-temperature of 40.6°F (4.8°C).

What is the average humidity in May?

The average relative humidity in May is 78%.

How much does it rain in May?

In May, the rain falls for 13.8 days. Throughout May, 2.17" (55mm) of precipitation is accumulated.

When it does not snow?

In Blue River, snow does not fall in May through October.

Does it snow in May?

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

How many hours of daylight does Blue River have in May?

In Blue River, the average day length in May is 14h and 47min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:59 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:45 pm PDT.

How long on average sun shines in May in Blue River?

The average sunshine duration in May is 8.3h.

What is the UV index intensity in May?

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from unsafe 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
Blue River, OR

Average temperature in May - Blue River, OR
  • Average high temperature in May: 63.9°F

The warmest month (with the highest average high temperature) is August (79.5°F).
The month with the lowest average high temperature is December (44.4°F).

  • Average low temperature in May: 40.6°F

The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).

Average pressure in May
Blue River, OR

Average pressure in May - Blue River, OR
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in May
Blue River, OR

Average wind speed in May - Blue River, OR
  • Average wind speed in May: 4.1mph

The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in May
Blue River, OR

Average humidity in May - Blue River, OR
  • Average humidity in May: 78%

The months with the highest relative humidity are February, March and December (86%).
The month with the lowest relative humidity is August (66%).

Average rainfall in May
Blue River, OR

Average rainfall in May - Blue River, OR
  • Average rainfall in May: 2.17"

The wettest month (with the highest rainfall) is December (5.47").
The driest month (with the least rainfall) is July (0.24").

Average rainfall days in May
Blue River, OR

Average rainfall days in May - Blue River, OR
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is July (4.1 days).

Average snowfall in May
Blue River, OR

Average snowfall in May - Blue River, OR
  • Average snowfall in May: 0"

The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Blue River, OR

Average snowfall days in May - Blue River, OR
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Blue River, OR

Average daylight in May / Average sunshine in May - Blue River, OR
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).

Average sunshine days in May
Blue River, OR

Average sunshine days in May - Blue River, OR
  • Average sunshine days in May: 15.6 days

The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (8.4 days).

Average UV index in May
Blue River, OR

Average UV index in May - Blue River, OR
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in May
Blue River, OR

Average cloud cover in May - Blue River, OR
  • Average cloud cover in May: 49

The months with the most cloud cover are February and March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in May
Blue River, OR

Average visibility in May - Blue River, OR
  • Average visibility in May: 5mi

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

Blue River, Oregon, USA

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