May weather forecast
Clearwater, WA

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Weather in May

The last month of the spring, May, is a mild month in Clearwater, Washington, with an average temperature ranging between min 45.5°F (7.5°C) and max 57.2°F (14°C).

Temperature

The arrival of May introduces a minor uplift in high-temperatures, adjusting from a fresh 50.9°F (10.5°C) in April to a mild 57.2°F (14°C). An average temperature of 45.5°F (7.5°C) marks the nights in May.

Humidity

With an average relative humidity of 80%, May is the least humid month.

Rainfall

In Clearwater, in May, it is raining for 10.8 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 169.3 rainfall days, and 37.83" (961mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in May is 15h and 10min.
On the first day of the month, sunrise is at 5:58 am and sunset at 8:29 pm. On the last day of May, sunrise is at 5:23 am and sunset at 9:06 pm PDT.

Sunshine

In Clearwater, the average sunshine in May is 8.7h.

UV index

May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 4 in May translates into these instructions:
Adopt protective measures - It is advised to guard against sun damage. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The average high-temperature, in May, in Clearwater, is 57.2°F (14°C), while the average low-temperature is 45.5°F (7.5°C).

What is the least humid month?

With an average relative humidity of 80%, May is the least humid month.

What is the average humidity in May?

In Clearwater, the average relative humidity in May is 80%.

How much does it rain in May?

In Clearwater, in May, during 10.8 rainfall days, 0.98" (25mm) of precipitation is typically accumulated.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in May?

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

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 8:29 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 9:06 pm PDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.7h.

When is the highest UV index?

The months with the highest UV index in Clearwater are May through September, with an average maximum UV index of 4.

What is the UV index reading in May?

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

Average temperature in May - Clearwater, WA
  • Average high temperature in May: 57.2°F

The warmest month (with the highest average high temperature) is August (65.8°F).
The month with the lowest average high temperature is December (45.1°F).

  • Average low temperature in May: 45.5°F

The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is February (38.7°F).

Average pressure in May
Clearwater, WA

Average pressure in May - Clearwater, WA
  • Average pressure in May: 30.05"Hg

The month with the highest atmospheric pressure is July (30.08"Hg).
The month with the lowest atmospheric pressure is March (29.99"Hg).

Average wind speed in May
Clearwater, WA

Average wind speed in May - Clearwater, WA
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in May
Clearwater, WA

Average humidity in May - Clearwater, WA
  • Average humidity in May: 80%

The months with the highest relative humidity are January, November and December (84%).
The month with the lowest relative humidity is May (80%).

Average rainfall in May
Clearwater, WA

Average rainfall in May - Clearwater, WA
  • Average rainfall in May: 0.98"

The wettest month (with the highest rainfall) is January (6.89").
The driest month (with the least rainfall) is July (0.51").

Average rainfall days in May
Clearwater, WA

Average rainfall days in May - Clearwater, WA
  • Average rainfall days in May: 10.8 days

The month with the highest number of rainy days is November (19.4 days).
The month with the least rainy days is August (6.8 days).

Average snowfall in May
Clearwater, WA

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

The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in May
Clearwater, WA

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

The month with the highest number of snowfall days is February (1.5 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
Clearwater, WA

Average daylight in May / Average sunshine in May - Clearwater, 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 months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in May
Clearwater, WA

Average sunshine days in May - Clearwater, WA
  • Average sunshine days in May: 16.9 days

The month with the most sunshine days is August (21.4 days).
The month with the least sunshine days is November (9.4 days).

Average UV index in May
Clearwater, WA

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

The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Clearwater, WA

Average cloud cover in May - Clearwater, WA
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in May
Clearwater, WA

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

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

Clearwater, Washington, USA

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