May weather forecast
Bothell, WA

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Weather in May

May brings a refreshing change in climate, with the Bothell terrain transitioning towards summer. Trees in full bloom, gentle breezes, and growing daylight hours mark the month. A unique characteristic of May is the minimal rainfall with an average of 1.34" (34mm). Amid the bloom and butterflies, the weather steadily morphs, paving the way for the early summer days of June. In hindsight, the beauty of May acts as the perfect interlude between the coolness of departing spring and the upcoming warm summer months.

Temperature

Bothell's May weather indicates a minor ascent in high-temperatures, adjusting from a refreshing 55.4°F (13°C) in April to a comfortable 63.7°F (17.6°C). An average minimum temperature of 44.2°F (6.8°C) is recorded during the month of May.

Humidity

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

Rainfall

In May, the rain falls for 13.3 days. Throughout May, 1.34" (34mm) of precipitation is accumulated. In Bothell, during the entire year, the rain falls for 166.9 days and collects up to 21.93" (557mm) of precipitation.

Snowfall

In Bothell, Washington, snow does not fall in May through October.

Daylight

In Bothell, the average length of the day in May is 15h and 11min.
On the first day of the month, sunrise is at 5:49 am and sunset at 8:22 pm. On the last day of May, in Bothell, sunrise is at 5:14 am and sunset at 8:58 pm PDT.

Sunshine

The average sunshine in May is 9.3h.

UV index

In May, the average daily maximum UV index in Bothell, Washington, is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 4 in May leads to these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What are the temperatures in Bothell in May?

The average high-temperature and low-temperature in Bothell during May are 63.7°F (17.6°C) and 44.2°F (6.8°C) respectively.

What is the average humidity in May in Bothell?

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

How many days does it rain in May in Bothell?

In Bothell, in May, during 13.3 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow in Bothell?

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

Does it snow in Bothell in May?

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

What is the average length of the day in May in Bothell?

In May, the average day length in Bothell, Washington, is 15h and 11min.

When are sunrise and sunset in May in Bothell?

In May, on the first day of the month, sunrise is at 5:49 am and sunset at 8:22 pm. On the last day of the month, in Bothell, Washington, sunrise is at 5:14 am and sunset at 8:58 pm PDT.

How long on average sun shines in May in Bothell?

In May, the average sunshine duration is 9.3h.

How high is the UV index in May in Bothell?

The average daily maximum UV index in May in Bothell, Washington, is 4. A UV Index reading of 3 to 5 represents a medium health risk 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
Bothell, WA

Average temperature in May - Bothell, WA
  • Average high temperature in May: 63.7°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 (42.6°F).

  • Average low temperature in May: 44.2°F

The month with the highest average low temperature is August (53.1°F).
The coldest months (with the lowest average low temperature) are February and December (35.1°F).

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Average pressure in May
Bothell, WA

Average pressure in May - Bothell, 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).

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Average wind speed in May
Bothell, WA

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

The windiest months (with the highest average wind speed) are January and March (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).

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Average humidity in May
Bothell, WA

Average humidity in May - Bothell, WA
  • Average humidity in May: 76%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in May
Bothell, WA

Average rainfall in May - Bothell, WA
  • Average rainfall in May: 1.34"

The wettest month (with the highest rainfall) is January (2.87").
The driest month (with the least rainfall) is July (0.43").

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Average rainfall days in May
Bothell, WA

Average rainfall days in May - Bothell, WA
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is November (17.9 days).
The month with the least rainy days is August (6.9 days).

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Average snowfall in May
Bothell, WA

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

The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Bothell, WA

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

The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Bothell, WA

Average daylight in May / Average sunshine in May - Bothell, 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 2min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 24min).

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Average sunshine days in May
Bothell, WA

Average sunshine days in May - Bothell, WA
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is April (10.5 days).

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Average UV index in May
Bothell, WA

Average UV index in May - Bothell, 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).

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Average cloud cover in May
Bothell, WA

Average cloud cover in May - Bothell, WA
  • Average cloud cover in May: 41

The months with the most cloud cover are January and December (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in May
Bothell, WA

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

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

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Bothell, Washington, USA

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