May weather forecast
Spokane, WA

Rocks and cliffs around the scenic Spokane Falls in Washington, leading to the vast Spokane River and a view of the high bridge out front
Rocks and cliffs around the scenic Spokane Falls in Washington, leading to the vast Spokane River and a view of the high bridge out front

Weather in May

The last month of the spring, May, is a comfortable month in Spokane, Washington, with an average temperature varying between 65.8°F (18.8°C) and 43.3°F (6.3°C).

Temperature

In Spokane, the average high-temperature in May rises from a cool 54.9°F (12.7°C) in April to an enjoyable 65.8°F (18.8°C). In May, the average low-temperature is 43.3°F (6.3°C).

Humidity

In Spokane, the average relative humidity in May is 62%.

Rainfall

In May, in Spokane, the rain falls for 13.4 days. Throughout May, 1.65" (42mm) of precipitation is accumulated. Throughout the year, in Spokane, Washington, there are 127.8 rainfall days, and 16.93" (430mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Spokane aggregates 0.08" (2mm) of snow. In Spokane, during the entire year, snow falls for 62.3 days and aggregates up to 37.83" (961mm) of snow.

Daylight

The average length of the day in May is 15h and 10min.
On the first day of May in Spokane, Washington, sunrise is at 5:31 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 4:56 am and sunset at 8:38 pm PDT.

Sunshine

In May, the average sunshine in Spokane, Washington, is 10.3h.

UV index

In Spokane, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 4 in May transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the temperature in May in Spokane?

In Spokane, Washington, in May, the average high-temperature is 65.8°F (18.8°C), and the average low-temperature is 43.3°F (6.3°C).

What is the average humidity in May in Spokane?

The average relative humidity in May in Spokane, Washington, is 62%.

How much does it rain in Spokane in May?

In Spokane, in May, during 13.4 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

What is the last month it snows in Spokane?

May is the last month it regularly snows in Spokane. During 0.3 snowfall days, in May, Spokane aggregates 0.08" (2mm) of snow.

How many hours of daylight does Spokane have in May?

In Spokane, the average day length in May is 15h and 10min.

When are sunrise and sunset in May in Spokane?

In May, on the first day of the month, sunrise is at 5:31 am and sunset at 8:01 pm. On the last day of the month, in Spokane, sunrise is at 4:56 am and sunset at 8:38 pm PDT.

How long on average sun shines in May in Spokane?

In Spokane, Washington, the average sunshine duration in May is 10.3h.

How high is the UV index in May in Spokane?

In Spokane, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Spokane, WA

Average temperature in May - Spokane, WA
  • Average high temperature in May: 65.8°F

The warmest months (with the highest average high temperature) are July and August (83.7°F).
The month with the lowest average high temperature is December (32.2°F).

  • Average low temperature in May: 43.3°F

The month with the highest average low temperature is August (59°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).

[Resources]

Average pressure in May
Spokane, WA

Average pressure in May - Spokane, WA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.9"Hg).

[Resources]

Average wind speed in May
Spokane, WA

Average wind speed in May - Spokane, WA
  • Average wind speed in May: 6.4mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

[Resources]

Average humidity in May
Spokane, WA

Average humidity in May - Spokane, WA
  • Average humidity in May: 62%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (38%).

[Resources]

Average rainfall in May
Spokane, WA

Average rainfall in May - Spokane, WA
  • Average rainfall in May: 1.65"

The wettest month (with the highest rainfall) is March (2.13").
The driest month (with the least rainfall) is August (0.35").

[Resources]

Average rainfall days in May
Spokane, WA

Average rainfall days in May - Spokane, WA
  • Average rainfall days in May: 13.4 days

The month with the highest number of rainy days is April (16.3 days).
The month with the least rainy days is July (4.9 days).

[Resources]

Average snowfall in May
Spokane, WA

Average snowfall in May - Spokane, WA
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (10.39").
The months with the least snowfall are June, July and August (0").

[Resources]

Average snowfall days in May
Spokane, WA

Average snowfall days in May - Spokane, WA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is December (15.6 days).
The months with the least snowfall days are June, July and August (0 days).

[Resources]

Average daylight in May /
Average sunshine in May
Spokane, WA

Average daylight in May / Average sunshine in May - Spokane, WA
  • Average daylight in May: 15h and 10min

The month with the longest days is June (Average daylight: 15h and 56min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in May: 10h and 18min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).

[Resources]

Average sunshine days in May
Spokane, WA

Average sunshine days in May - Spokane, WA
  • Average sunshine days in May: 14.9 days

The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is March (9.8 days).

[Resources]

Average UV index in May
Spokane, WA

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February and December (UV index 1).

[Resources]

Average cloud cover in May
Spokane, WA

Average cloud cover in May - Spokane, WA
  • Average cloud cover in May: 33

The months with the most cloud cover are January and December (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 13).

[Resources]

Average visibility in May
Spokane, WA

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

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location