May weather forecast
Lacey, WA

Weather in May

May, the last month of the spring in Lacey, is an enjoyable month, with an average temperature varying between 65.7°F (18.7°C) and 41.9°F (5.5°C).

Temperature

In Lacey, the average high-temperature in May slightly increases from a mild 57°F (13.9°C) in April to an enjoyable 65.7°F (18.7°C). The average low-temperature, is 41.9°F (5.5°C).

Humidity

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

Rainfall

In Lacey, Washington, during 13.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In Lacey, during the entire year, the rain falls for 177.4 days and collects up to 37.05" (941mm) of precipitation.

Snowfall

April through October are months without snowfall in Lacey.

Daylight

The average length of the day in May is 15h and 5min.
On the first day of May, sunrise is at 5:55 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:57 pm PDT.

Sunshine

In May, the average sunshine is 8.1h.

UV index

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 in May interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in May in Lacey?

The average high-temperature, in May, in Lacey, is 65.7°F (18.7°C), while the average low-temperature is 41.9°F (5.5°C).

What is the average humidity in May in Lacey?

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

How many days does it rain in May in Lacey?

In Lacey, Washington, during May, the rain falls for 13.5 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Lacey?

April through October are months without snowfall in Lacey, Washington.

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

The average day length in May is 15h and 5min.

When are sunrise and sunset in May in Lacey?

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:57 pm PDT.

How long on average sun shines in May in Lacey?

In May, the average sunshine duration is 8.1h.

How high is the UV index in May in Lacey?

In Lacey, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Lacey, WA

Average temperature in May - Lacey, WA
  • Average high temperature in May: 65.7°F

The warmest month (with the highest average high temperature) is August (78.6°F).
The month with the lowest average high temperature is December (43°F).

  • Average low temperature in May: 41.9°F

The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (33.4°F).

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Average pressure in May
Lacey, WA

Average pressure in May - Lacey, WA
  • Average pressure in May: 30.04"Hg

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

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Average wind speed in May
Lacey, WA

Average wind speed in May - Lacey, WA
  • Average wind speed in May: 4.3mph

The windiest months (with the highest average wind speed) are March and November (4.6mph).
The calmest month (with the lowest average wind speed) is September (3.8mph).

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Average humidity in May
Lacey, WA

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

The months with the highest relative humidity are January, November and December (89%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in May
Lacey, WA

Average rainfall in May - Lacey, WA
  • Average rainfall in May: 1.77"

The wettest month (with the highest rainfall) is December (5.79").
The driest month (with the least rainfall) is July (0.39").

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Average rainfall days in May
Lacey, WA

Average rainfall days in May - Lacey, WA
  • Average rainfall days in May: 13.5 days

The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (5.5 days).

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Average snowfall in May
Lacey, WA

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

The month with the highest snowfall is February (2.32").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Lacey, WA

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

The month with the highest number of snowfall days is February (3.3 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
Lacey, WA

Average daylight in May / Average sunshine in May - Lacey, WA
  • Average daylight in May: 15h and 5min

The month with the longest days is June (Average daylight: 15h and 50min).
The month with the shortest days is December (Average daylight: 8h and 35min).

  • Average sunshine in May: 8h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

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Average sunshine days in May
Lacey, WA

Average sunshine days in May - Lacey, WA
  • Average sunshine days in May: 15.8 days

The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is February (8.4 days).

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Average UV index in May
Lacey, WA

Average UV index in May - Lacey, 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
Lacey, WA

Average cloud cover in May - Lacey, WA
  • Average cloud cover in May: 53

The months with the most cloud cover are January and December (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 35).

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Average visibility in May
Lacey, WA

Average visibility in May - Lacey, WA
  • Average visibility in May: 4mi

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

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