May weather forecast
Lafayette, OR

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Weather in May

May, the last month of the spring in Lafayette, is a refreshing month, with an average temperature varying between 66°F (18.9°C) and 43.3°F (6.3°C).

Temperature

Lafayette's weather in May shows a minor rise in the average high-temperature, moving slightly up from April's moderate 57.7°F (14.3°C) to an enjoyable 66°F (18.9°C). Despite substantial daily fluctuations, the average low-temperature is a chilly 43.3°F (6.3°C) during May.

Humidity

In May, the average relative humidity is 76%.

Rainfall

In Lafayette, in May, it is raining for 13.3 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 172.2 rainfall days, and 28.9" (734mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Lafayette.

Daylight

In Lafayette, the average length of the day in May is 14h and 54min.
On the first day of May, sunrise is at 5:59 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:52 pm PDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The UV index of 4 during May translates into the following guidance:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
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Frequently asked questions

What are the temperatures in Lafayette in May?

The high-temperature, in May, in Lafayette, is 66°F (18.9°C), while the low-temperature averages to 43.3°F (6.3°C).

What is the average humidity in May in Lafayette?

The average relative humidity in May in Lafayette, Oregon, is 76%.

How many days does it rain in May in Lafayette?

In Lafayette, Oregon, in May, it is raining for 13.3 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow in Lafayette?

April through October are months without snowfall in Lafayette, Oregon.

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

In May, the average day length in Lafayette is 14h and 54min.

What time are sunrise and sunset in May in Lafayette?

On the first day of May in Lafayette, sunrise is at 5:59 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:52 pm PDT.

How many hours of sunshine does Lafayette have in May?

In Lafayette, the average sunshine duration in May is 8.5h.

What is the UV index intensity in May in Lafayette?

In May, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Lafayette, OR

Average temperature in May - Lafayette, OR
  • Average high temperature in May: 66°F

The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (44.1°F).

  • Average low temperature in May: 43.3°F

The month with the highest average low temperature is August (54.3°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).

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Average pressure in May
Lafayette, OR

Average pressure in May - Lafayette, OR
  • Average pressure in May: 30.04"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).

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Average wind speed in May
Lafayette, OR

Average wind speed in May - Lafayette, OR
  • Average wind speed in May: 4.3mph

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).

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Average humidity in May
Lafayette, OR

Average humidity in May - Lafayette, OR
  • Average humidity in May: 76%

The months with the highest relative humidity are February and December (87%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in May
Lafayette, OR

Average rainfall in May - Lafayette, OR
  • Average rainfall in May: 1.65"

The wettest month (with the highest rainfall) is December (4.49").
The driest months (with the least rainfall) are July and August (0.35").

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Average rainfall days in May
Lafayette, OR

Average rainfall days in May - Lafayette, OR
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (4.6 days).

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Average snowfall in May
Lafayette, OR

Average snowfall in May - Lafayette, OR
  • Average snowfall in May: 0"

The month with the highest snowfall is February (1.38").
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
Lafayette, OR

Average snowfall days in May - Lafayette, OR
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Lafayette, OR

Average daylight in May / Average sunshine in May - Lafayette, OR
  • Average daylight in May: 14h and 5min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).

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Average sunshine days in May
Lafayette, OR

Average sunshine days in May - Lafayette, OR
  • Average sunshine days in May: 15.8 days

The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.4 days).

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Average UV index in May
Lafayette, OR

Average UV index in May - Lafayette, OR
  • Average UV index in May: 4

The month with the highest UV index is July (UV index 6).
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
Lafayette, OR

Average cloud cover in May - Lafayette, OR
  • Average cloud cover in May: 48

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in May
Lafayette, OR

Average visibility in May - Lafayette, OR
  • Average visibility in May: 5mi

The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Lafayette, Oregon, USA

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