May weather forecast
Amboy, WA

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Weather in May

The last month of the spring, May, is a refreshing month in Amboy, Washington, with an average temperature varying between 41.5°F (5.3°C) and 63.5°F (17.5°C).

Temperature

May's arrival brings a temperature shift, moving from a fresh 54.3°F (12.4°C) in April to a refreshing 63.5°F (17.5°C). Nightly average temperatures in May reveal a significant dip from daytime highs in Amboy, registering a consistent an icy 41.5°F (5.3°C).

Humidity

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

Rainfall

In Amboy, during May, the rain falls for 14.3 days and regularly aggregates up to 2.68" (68mm) of precipitation. Throughout the year, in Amboy, there are 182.3 rainfall days, and 48.11" (1222mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall in Amboy.

Daylight

The average length of the day in May is 14h and 58min.
On the first day of the month, sunrise is at 5:55 am and sunset at 8:18 pm. On the last day of May, in Amboy, sunrise is at 5:22 am and sunset at 8:52 pm PDT.

Sunshine

In Amboy, the average sunshine in May is 7.7h.

UV index

The average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In May, an average UV index of 4 transforms into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Amboy?

In Amboy, 63.5°F (17.5°C) is the average high-temperature and 41.5°F (5.3°C) is the average low-temperature during May.

What is the average humidity in May in Amboy?

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

How many days does it rain in May in Amboy?

In Amboy, Washington, in May, it is raining for 14.3 days, with typically 2.68" (68mm) of accumulated precipitation.

When it does not snow in Amboy?

In Amboy, snow does not fall in April through October.

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

In Amboy, the average day length in May is 14h and 58min.

When is the sunrise / sunset in May in Amboy?

On the first day of May in Amboy, sunrise is at 5:55 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:52 pm PDT.

How long on average sun shines in May in Amboy?

In May, the average sunshine duration is 7.7h.

What is the UV index intensity in May in Amboy?

The average daily maximum UV index in May 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
Amboy, WA

Average temperature in May - Amboy, WA
  • Average high temperature in May: 63.5°F

The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (40.6°F).

  • Average low temperature in May: 41.5°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 (30.7°F).

Average pressure in May
Amboy, WA

Average pressure in May - Amboy, WA
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).

Average wind speed in May
Amboy, WA

Average wind speed in May - Amboy, WA
  • Average wind speed in May: 4.4mph

The windiest month (with the highest average wind speed) is January (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in May
Amboy, WA

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

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are July and August (69%).

Average rainfall in May
Amboy, WA

Average rainfall in May - Amboy, WA
  • Average rainfall in May: 2.68"

The wettest month (with the highest rainfall) is January (7.64").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in May
Amboy, WA

Average rainfall days in May - Amboy, WA
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (5.6 days).

Average snowfall in May
Amboy, WA

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

The month with the highest snowfall is February (4.02").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Amboy, WA

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

The month with the highest number of snowfall days is February (4.2 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
Amboy, WA

Average daylight in May / Average sunshine in May - Amboy, WA
  • Average daylight in May: 15h and 0min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in May: 7h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).

Average sunshine days in May
Amboy, WA

Average sunshine days in May - Amboy, WA
  • Average sunshine days in May: 15 days

The month with the most sunshine days is August (23.4 days).
The month with the least sunshine days is February (8.1 days).

Average UV index in May
Amboy, WA

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

The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in May
Amboy, WA

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

The months with the most cloud cover are February and December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in May
Amboy, WA

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

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

Amboy, Washington, USA

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