May weather forecastPacific, WA

May

Weather in May

May, the last month of the spring in Pacific, is a refreshing month, with an average temperature fluctuating between 63.1°F (17.3°C) and 42.8°F (6°C).

Temperature

In May, the average high-temperature marginally rises from a fresh 54.9°F (12.7°C) in April to a comfortable 63.1°F (17.3°C). In Pacific, an average nighttime temperature of 42.8°F (6°C) is expected during May.

Humidity

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

Rainfall

In Pacific, during May, the rain falls for 13.1 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Pacific, during the entire year, the rain falls for 162.5 days and collects up to 17.87" (454mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Pacific, Washington, the average length of the day in May is 15h and 7min.
On the first day of May, sunrise is at 5:51 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:56 pm PDT.

Sunshine

In Pacific, Washington, the average sunshine in May is 9.1h.

UV index

In Pacific, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 4 during May leads to these advisories:
Take precautions - Protection against sunburn is recommended. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In May, in Pacific, the average high-temperature is 63.1°F (17.3°C), and the average low-temperature is 42.8°F (6°C).

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

In Pacific, Washington, in May, it is raining for 13.1 days, with typically 1.1" (28mm) of accumulated precipitation.

In Pacific, snow does not fall in May through October.

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

In May, the average day length is 15h and 7min.

In May, on the first day of the month, sunrise is at 5:51 am and sunset at 8:20 pm. On the last day of the month, in Pacific, Washington, sunrise is at 5:16 am and sunset at 8:56 pm PDT.

In May, the average sunshine duration in Pacific is 9.1h.

In Pacific, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

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

Apr

May

Jun

Average high temperature

54.9°F

63.1°F

68.5°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.8mph

4.3mph

4.2mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.5

15.6

14.9

Average UV index

Average cloud cover

52%

44%

Average visibility

5mi

Average temperature in May
Pacific, WA

Average high temperature in May: 63.1°F

The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (41.9°F).

Average low temperature in May: 42.8°F

The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (32.5°F).

Average pressure in May
Pacific, WA

Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in May
Pacific, WA

Average wind speed in May: 3.9mph

The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

Average humidity in May
Pacific, WA

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 July (69%).

Average rainfall in May
Pacific, WA

Average rainfall in May: 1.1"

The wettest month (with the highest rainfall) is January (2.6").
The driest month (with the least rainfall) is July (0.39").

Average rainfall days in May
Pacific, WA

Average rainfall days in May: 13.1 days

The month with the highest number of rainy days is November (17.5 days).
The month with the least rainy days is August (6.3 days).

Average snowfall in May
Pacific, WA

Average snowfall in May: 0"

The month with the highest snowfall is February (0.79").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Pacific, WA

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.7 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
Pacific, WA

Average daylight in May: 15h and 6min

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 36min).

Average sunshine in May: 9h and 6min

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 18min).

Average sunshine days in May
Pacific, WA

Average sunshine days in May: 15.6 days

The month with the most sunshine days is August (21.8 days).
The month with the least sunshine days is February (10.3 days).

Average UV index in May
Pacific, WA

Average UV index in May: 4

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