May weather forecastMarcus, WA

May

Weather in May

The last month of the spring, May, is an enjoyable month in Marcus, Washington, with an average temperature ranging between max 64°F (17.8°C) and min 38.1°F (3.4°C).

Temperature

As Marcus transitions into May, the average high-temperature shows a change, moving from a cool 51.6°F (10.9°C) in April to a comfortable 64°F (17.8°C). Nighttime temperatures in Marcus exhibit a substantial dip from daytime highs during May, averaging at a cold 38.1°F (3.4°C).

Humidity

In May, the average relative humidity in Marcus is 65%.

Rainfall

May is the month with the most rainfall in Marcus. Rain falls for 16.4 days and accumulates 1.93" (49mm) of precipitation.

Snowfall

May through August are months without snowfall.

Daylight

The average length of the day in May in Marcus is 15h and 17min.
On the first day of the month, sunrise is at 5:30 am and sunset at 8:07 pm. On the last day of May, in Marcus, Washington, sunrise is at 4:54 am and sunset at 8:46 pm PDT.

Sunshine

The average sunshine in May is 10.7h.

UV index

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, an average UV index of 4 transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature in Marcus during May is 64°F (17.8°C) and the low-temperature is 38.1°F (3.4°C).

In Marcus, the average relative humidity in May is 65%.

May is the month with the most rainfall. Rain falls for 16.4 days and accumulates 1.93" (49mm) of precipitation.

In Marcus, in May, during 16.4 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

May through August are months without snowfall.

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

In Marcus, the average day length in May is 15h and 17min.

In May, on the first day of the month, sunrise is at 5:30 am and sunset at 8:07 pm. On the last day of the month, in Marcus, Washington, sunrise is at 4:54 am and sunset at 8:46 pm PDT.

In May, the average sunshine duration in Marcus, Washington, is 10.7h.

The average daily maximum UV index in May in Marcus is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

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

Apr

May

Jun

Average high temperature

51.6°F

64°F

70.2°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

4.3mph

4.1mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

17.8

16.4

Average snowfall

0.43"

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

9.3

11.8

12.4

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Marcus, WA

Average high temperature in May: 64°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 (28.9°F).

Average low temperature in May: 38.1°F

The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is February (16°F).

Average pressure in May
Marcus, WA

Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).

Average wind speed in May
Marcus, WA

Average wind speed in May: 3.7mph

The windiest month (with the highest average wind speed) is April (3.9mph).
The calmest months (with the lowest average wind speed) are January, February and December (3mph).

Average humidity in May
Marcus, WA

Average humidity in May: 65%

The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (50%).

Average rainfall in May
Marcus, WA

Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is August (0.39").

Average rainfall days in May
Marcus, WA

Average rainfall days in May: 16.4 days

The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (6.1 days).

Average snowfall in May
Marcus, WA

Average snowfall in May: 0"

The month with the highest snowfall is January (6.61").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in May
Marcus, WA

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is December (13.7 days).
The months with the least snowfall days are May, June, July and August (0 days).

Average daylight in May /
Average sunshine in May
Marcus, 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 42min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Marcus, WA

Average sunshine days in May: 11.8 days

The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is March (9 days).

Average UV index in May
Marcus, 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).