May weather forecast
Brightwood, OR

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Weather in May

The last month of the spring, May, is a refreshing month in Brightwood, Oregon, with an average temperature varying between 40.8°F (4.9°C) and 62.2°F (16.8°C).

Temperature

Brightwood's weather in May presents a rise in the average high-temperature, moving from a fresh 53.2°F (11.8°C) in April to a comfortable 62.2°F (16.8°C). During the month of May, an average temperature of 40.8°F (4.9°C) is noted during the nights.

Humidity

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

Rainfall

In Brightwood, during May, the rain falls for 14.8 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Brightwood, Oregon, during the entire year, the rain falls for 178.5 days and collects up to 41.65" (1058mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Brightwood aggregates 0.04" (1mm) of snow. In Brightwood, during the entire year, snow falls for 31.6 days and aggregates up to 33.86" (860mm) of snow.

Daylight

In May, the average length of the day is 14h and 55min.
On the first day of the month, sunrise is at 5:54 am and sunset at 8:15 pm. On the last day of May, sunrise is at 5:23 am and sunset at 8:48 pm PDT.

Sunshine

In Brightwood, the average sunshine in May is 8.6h.

UV index

In May, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: During May, 4 as the daily maximum UV index converts into the following advice:
Exercise prevention - Precautions against solar damage are endorsed. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Experience reduced UV exposure by about half when donning a wide-brim hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Brightwood in May?

The average high-temperature and low-temperature during May are 62.2°F (16.8°C) and 40.8°F (4.9°C) respectively.

What is the average humidity in May?

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

How many days does it rain in May?

In Brightwood, in May, it is raining for 14.8 days, with typically 2.44" (62mm) 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, Brightwood aggregates 0.04" (1mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 55min.

When is the sunrise / sunset in May in Brightwood?

In May, on the first day of the month, sunrise is at 5:54 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:48 pm PDT.

How many hours of sunshine does Brightwood have in May?

The average sunshine duration in May is 8.6h.

How high is the UV index in May?

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from 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
Brightwood, OR

Average temperature in May - Brightwood, OR
  • Average high temperature in May: 62.2°F

The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (40.6°F).

  • Average low temperature in May: 40.8°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 (30.7°F).

Average pressure in May
Brightwood, OR

Average pressure in May - Brightwood, OR
  • Average pressure in May: 30.02"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).

Average wind speed in May
Brightwood, OR

Average wind speed in May - Brightwood, OR
  • Average wind speed in May: 4.3mph

The windiest month (with the highest average wind speed) is January (6.7mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in May
Brightwood, OR

Average humidity in May - Brightwood, OR
  • Average humidity in May: 76%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (66%).

Average rainfall in May
Brightwood, OR

Average rainfall in May - Brightwood, OR
  • Average rainfall in May: 2.44"

The wettest month (with the highest rainfall) is December (6.42").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in May
Brightwood, OR

Average rainfall days in May - Brightwood, OR
  • Average rainfall days in May: 14.8 days

The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is July (6 days).

Average snowfall in May
Brightwood, OR

Average snowfall in May - Brightwood, OR
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (11.69").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
Brightwood, OR

Average snowfall days in May - Brightwood, OR
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is February (8.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Brightwood, 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 12min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

Average sunshine days in May
Brightwood, OR

Average sunshine days in May - Brightwood, OR
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is July (22.9 days).
The month with the least sunshine days is February (7.3 days).

Average UV index in May
Brightwood, OR

Average UV index in May - Brightwood, OR
  • Average UV index in May: 4

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in May
Brightwood, OR

Average cloud cover in May - Brightwood, OR
  • Average cloud cover in May: 49

The months with the most cloud cover are February and March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in May
Brightwood, OR

Average visibility in May - Brightwood, 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, May, June, July, September, October, November and December (5mi).

Brightwood, Oregon, USA

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