May weather forecast
Snoqualmie, WA

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Weather in May

May, the last month of the spring in Snoqualmie, is a comfortable month, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 61.9°F (16.6°C).

Temperature

The arrival of May brings a change in Snoqualmie's weather, with average high-temperatures moving from April's cool 52.9°F (11.6°C) to a comfortable 61.9°F (16.6°C). Snoqualmie notes a substantial temperature decline from the daytime peaks throughout May, with an average nighttime temperature of 40.1°F (4.5°C).

Humidity

The average relative humidity in May in Snoqualmie is 77%.

Rainfall

In Snoqualmie, during May, the rain falls for 14.7 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, there are 184.9 rainfall days, and 39.96" (1015mm) of precipitation is accumulated.

Snowfall

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

Daylight

In May, the average length of the day in Snoqualmie is 15h and 9min.
On the first day of the month, sunrise is at 5:48 am and sunset at 8:19 pm. On the last day of May, in Snoqualmie, sunrise is at 5:13 am and sunset at 8:56 pm PDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

In Snoqualmie, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 4 during May leads to these instructions:
Guard yourself - Precautionary measures against sun damage are advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Snoqualmie in May?

The average high-temperature, in May, in Snoqualmie, is 61.9°F (16.6°C), while the average low-temperature is 40.1°F (4.5°C).

What is the average humidity in May in Snoqualmie?

In May, the average relative humidity in Snoqualmie, Washington, is 77%.

How much does it rain in Snoqualmie in May?

In Snoqualmie, during May, the rain falls for 14.7 days and regularly aggregates up to 1.93" (49mm) of precipitation.

When it does not snow in Snoqualmie?

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

Does it snow in Snoqualmie in May?

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

How many hours of daylight does Snoqualmie have in May?

In May, the average day length in Snoqualmie, Washington, is 15h and 9min.

When is the sunrise / sunset in May in Snoqualmie?

In May, on the first day of the month, sunrise is at 5:48 am and sunset at 8:19 pm. On the last day of the month, in Snoqualmie, sunrise is at 5:13 am and sunset at 8:56 pm PDT.

How many hours of sunshine does Snoqualmie have in May?

In Snoqualmie, the average sunshine duration in May is 8.6h.

How high is the UV index in May in Snoqualmie?

The average daily maximum UV index in May in Snoqualmie, Washington, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Snoqualmie, WA

Average temperature in May - Snoqualmie, WA
  • Average high temperature in May: 61.9°F

The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (39.7°F).

  • Average low temperature in May: 40.1°F

The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).

Average pressure in May
Snoqualmie, WA

Average pressure in May - Snoqualmie, WA
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

Average wind speed in May
Snoqualmie, WA

Average wind speed in May - Snoqualmie, WA
  • Average wind speed in May: 3.5mph

The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

Average humidity in May
Snoqualmie, WA

Average humidity in May - Snoqualmie, WA
  • Average humidity in May: 77%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (71%).

Average rainfall in May
Snoqualmie, WA

Average rainfall in May - Snoqualmie, WA
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is January (6.1").
The driest months (with the least rainfall) are July and August (0.59").

Average rainfall days in May
Snoqualmie, WA

Average rainfall days in May - Snoqualmie, WA
  • Average rainfall days in May: 14.7 days

The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.4 days).

Average snowfall in May
Snoqualmie, WA

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

The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Snoqualmie, WA

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

The month with the highest number of snowfall days is February (5.4 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
Snoqualmie, WA

Average daylight in May / Average sunshine in May - Snoqualmie, 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: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).

Average sunshine days in May
Snoqualmie, WA

Average sunshine days in May - Snoqualmie, WA
  • Average sunshine days in May: 13.4 days

The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is February (7.8 days).

Average UV index in May
Snoqualmie, WA

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

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in May
Snoqualmie, WA

Average cloud cover in May - Snoqualmie, WA
  • Average cloud cover in May: 49

The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May
Snoqualmie, WA

Average visibility in May - Snoqualmie, WA
  • Average visibility in May: 5mi

The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).

Snoqualmie, Washington, USA

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