May weather forecastColville, WA

May

Weather in May

The last month of the spring, May, is a comfortable month in Colville, Washington, with an average temperature ranging between min 37.9°F (3.3°C) and max 64.9°F (18.3°C).

Temperature

In May, the meteorological conditions change with the average high-temperature moving from a fresh 52.7°F (11.5°C) in April to an enjoyable 64.9°F (18.3°C). A significant temperature decrease to an average an icy 37.9°F (3.3°C) characterizes Colville's nighttime temperatures during May.

Humidity

In May, the average relative humidity is 65%.

Rainfall

In Colville, in May, it is raining for 13.2 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, there are 128.8 rainfall days, and 13.62" (346mm) of precipitation is accumulated.

Snowfall

May through August are months without snowfall.

Daylight

In May, the average length of the day is 15h and 16min.
On the first day of May, sunrise is at 5:30 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 4:53 am and sunset at 8:44 pm PDT.

Sunshine

In May, the average sunshine is 10.6h.

UV index

In Colville, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The UV index of 4 during May leads to these advisories:
Exercise prevention - Protecting skin and eyes from harm is required. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Updated: Aug 6, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Colville in May has an average high-temperature of 64.9°F (18.3°C) and an average low-temperature of 37.9°F (3.3°C).

The average relative humidity in May is 65%.

In Colville, in May, it is raining for 13.2 days, with typically 1.5" (38mm) of accumulated precipitation.

In Colville, snow does not fall in May through August.

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

In Colville, the average day length in May is 15h and 16min.

In May, on the first day of the month, sunrise is at 5:30 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 4:53 am and sunset at 8:44 pm PDT.

In Colville, the average sunshine duration in May is 10.6h.

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

52.7°F

64.9°F

71.1°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.5mph

4.2mph

4.3mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

11.5

15.7

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Colville, WA

Average high temperature in May: 64.9°F

The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (29.3°F).

Average low temperature in May: 37.9°F

The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).

Average pressure in May
Colville, 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 June (29.91"Hg).

Average wind speed in May
Colville, WA

Average wind speed in May: 3.9mph

The windiest month (with the highest average wind speed) is April (4mph).
The calmest months (with the lowest average wind speed) are January and December (3.1mph).

Average humidity in May
Colville, WA

Average humidity in May: 65%

The month with the highest relative humidity is January (95%).
The month with the lowest relative humidity is August (49%).

Average rainfall in May
Colville, WA

Average rainfall in May: 1.5"

The wettest months (with the highest rainfall) are November and December (1.54").
The driest month (with the least rainfall) is August (0.28").

Average rainfall days in May
Colville, WA

Average rainfall days in May: 13.2 days

The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is August (4.1 days).

Average snowfall in May
Colville, WA

Average snowfall in May: 0"

The month with the highest snowfall is January (7.8").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in May
Colville, WA

Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in May: 15h and 18min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

Average sunshine in May: 10h and 36min

The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in May
Colville, WA

Average sunshine days in May: 15.7 days

The month with the most sunshine days is August (24.8 days).
The month with the least sunshine days is March (11.2 days).

Average UV index in May
Colville, WA

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 1).