May weather forecast
Brinnon, WA

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Weather in May

The last month of the spring, May, is a comfortable month in Brinnon, Washington, with an average temperature varying between 63.7°F (17.6°C) and 45.7°F (7.6°C).

Temperature

May witnesses a minor rise in the average high-temperature, transitioning from a refreshing 55.8°F (13.2°C) in April to an enjoyable 63.7°F (17.6°C). The nighttime temperature dips to a chilly 45.7°F (7.6°C) on average during May.

Humidity

In Brinnon, the average relative humidity in May is 75%.

Rainfall

In May, the rain falls for 14.2 days. Throughout May, 1.65" (42mm) of precipitation is accumulated. Throughout the year, there are 180.4 rainfall days, and 26.93" (684mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May is 15h and 10min.
On the first day of May, sunrise is at 5:52 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 9:01 pm PDT.

Sunshine

In May, the average sunshine is 9.6h.

UV index

In Brinnon, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, the maximum UV index of 4 translates into these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. To guard against the harmful effects of the Sun, minimize exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

May temperatures vary between a high-temperature of 63.7°F (17.6°C) and a low-temperature of 45.7°F (7.6°C).

What is the average humidity in May?

The average relative humidity in May is 75%.

How much does it rain in May?

In Brinnon, in May, it is raining for 14.2 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow?

In Brinnon, 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 Brinnon have in May?

The average day length in May is 15h and 10min.

What time are sunrise and sunset in May in Brinnon?

In May, on the first day of the month, sunrise is at 5:52 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 9:01 pm PDT.

How long on average sun shines in May?

In May, the average sunshine duration is 9.6h.

What is the UV index intensity in May?

In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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
Brinnon, WA

Average temperature in May - Brinnon, WA
  • Average high temperature in May: 63.7°F

The warmest month (with the highest average high temperature) is August (75.7°F).
The month with the lowest average high temperature is December (42.8°F).

  • Average low temperature in May: 45.7°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 (35.2°F).

Average pressure in May
Brinnon, WA

Average pressure in May - Brinnon, WA
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March and September (30.01"Hg).

Average wind speed in May
Brinnon, WA

Average wind speed in May - Brinnon, WA
  • Average wind speed in May: 3.9mph

The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are July and August (3.2mph).

Average humidity in May
Brinnon, WA

Average humidity in May - Brinnon, WA
  • Average humidity in May: 75%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (70%).

Average rainfall in May
Brinnon, WA

Average rainfall in May - Brinnon, WA
  • Average rainfall in May: 1.65"

The wettest month (with the highest rainfall) is January (4.33").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in May
Brinnon, WA

Average rainfall days in May - Brinnon, WA
  • Average rainfall days in May: 14.2 days

The month with the highest number of rainy days is March (20.1 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in May
Brinnon, WA

Average snowfall in May - Brinnon, WA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Brinnon, WA

Average snowfall days in May - Brinnon, WA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (3.1 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
Brinnon, WA

Average daylight in May / Average sunshine in May - Brinnon, WA
  • Average daylight in May: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in May: 9h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).

Average sunshine days in May
Brinnon, WA

Average sunshine days in May - Brinnon, WA
  • Average sunshine days in May: 14.5 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (8.7 days).

Average UV index in May
Brinnon, WA

Average UV index in May - Brinnon, WA
  • Average UV index in May: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Brinnon, WA

Average cloud cover in May - Brinnon, WA
  • Average cloud cover in May: 39

The months with the most cloud cover are January and December (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 23).

Average visibility in May
Brinnon, WA

Average visibility in May - Brinnon, WA
  • Average visibility in May: 6mi

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

Brinnon, Washington, USA

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