May weather forecastFall City, WA

May

Weather in May

The last month of the spring, May, is an enjoyable month in Fall City, Washington, with temperature in the range of an average high of 61.9°F (16.6°C) and an average low of 40.1°F (4.5°C).

Temperature

May marks a rise in the average high-temperature, moving from April's cool 52.9°F (11.6°C) to a comfortable 61.9°F (16.6°C). Fall City records a marked divergence from the day's high temperatures, with nights in May averaging at a cold 40.1°F (4.5°C).

Humidity

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

Rainfall

In Fall City, Washington, in May, it is raining for 14.7 days, with typically 1.93" (49mm) of accumulated precipitation. In Fall City, during the entire year, the rain falls for 184.9 days and collects up to 39.96" (1015mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Fall City, Washington, the average length of the day in May is 15h and 9min.
On the first day of May in Fall City, sunrise is at 5:48 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:13 am and sunset at 8:56 pm PDT.

Sunshine

In Fall City, the average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. To guard against the harmful effects of the Sun, minimize exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature in Fall City during May is 61.9°F (16.6°C) and the low-temperature is 40.1°F (4.5°C).

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

In Fall City, Washington, in May, during 14.7 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

May through October are months without snowfall.

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

In Fall City, the average day length in May is 15h and 9min.

In May, on the first day of the month, sunrise is at 5:48 am and sunset at 8:20 pm. On the last day of the month, in Fall City, Washington, sunrise is at 5:13 am and sunset at 8:56 pm PDT.

In Fall City, Washington, the average sunshine duration in May is 8.6h.

In Fall City, Washington, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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
Fall City, WA

  • Average high temperature in May: 61.9°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 (39.7°F).

  • Average low temperature in May: 40.1°F

The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).

Average pressure in May
Fall City, WA

  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).

Average wind speed in May
Fall City, WA

  • Average wind speed in May: 3.5mph

The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).

Average humidity in May
Fall City, WA

  • Average humidity in May: 77%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (71%).

Average rainfall in May
Fall City, WA

  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is January (6.1").
The driest months (with the least rainfall) are July and August (0.59").

Average rainfall days in May
Fall City, WA

  • Average rainfall days in May: 14.7 days

The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.4 days).

Average snowfall in May
Fall City, WA

  • Average snowfall in May: 0"

The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Fall City, WA

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (5.4 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
Fall City, WA

  • Average daylight in May: 15h and 12min

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 36min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).

Average sunshine days in May
Fall City, WA

  • Average sunshine days in May: 13.4 days

The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is February (7.8 days).

Average UV index in May
Fall City, WA

  • Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).

Average cloud cover in May
Fall City, WA

  • Average cloud cover in May: 49

The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May
Fall City, WA

  • Average visibility in May: 5mi

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