May weather forecastGraham, WA

May

Weather in May

May, the last month of the spring in Graham, is a refreshing month, with temperature in the range of an average high of 64°F (17.8°C) and an average low of 42.8°F (6°C).

Temperature

Graham, Washington, observes a slight ascent in average high-temperatures during May, adjusting from a moderate 55.9°F (13.3°C) in April to an enjoyable 64°F (17.8°C). In Graham, an average low-temperature of 42.8°F (6°C) is recorded during May nights.

Humidity

In May, the average relative humidity is 76%.

Rainfall

In May, the rain falls for 13.8 days. Throughout May, 1.85" (47mm) of precipitation is accumulated. In Graham, during the entire year, the rain falls for 172.9 days and collects up to 32.28" (820mm) of precipitation.

Snowfall

In Graham, Washington, snow does not fall in May through October.

Daylight

In May, the average length of the day in Graham is 15h and 6min.
On the first day of May, sunrise is at 5:51 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:56 pm PDT.

Sunshine

In Graham, Washington, the average sunshine in May is 8.7h.

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 rays for average individuals.
Note: The daily high UV index of 4 in May translates into this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.

Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during May is 64°F (17.8°C) and the low-temperature is 42.8°F (6°C).

In Graham, the average relative humidity in May is 76%.

In Graham, in May, it is raining for 13.8 days, with typically 1.85" (47mm) of accumulated precipitation.

In Graham, snow does not fall in May through October.

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

In May, the average day length is 15h and 6min.

In May, on the first day of the month, sunrise is at 5:51 am and sunset at 8:20 pm. On the last day of the month, in Graham, sunrise is at 5:17 am and sunset at 8:56 pm PDT.

In May, the average sunshine duration is 8.7h.

In Graham, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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

55.9°F

64°F

69.3°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

5.1mph

4.6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

10.1

15.6

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Graham, WA

Average high temperature in May: 64°F

The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (42.8°F).

Average low temperature in May: 42.8°F

The month with the highest average low temperature is August (51.3°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).

Average pressure in May
Graham, WA

Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

Average wind speed in May
Graham, WA

Average wind speed in May: 4.2mph

The windiest months (with the highest average wind speed) are January and March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

Average humidity in May
Graham, WA

Average humidity in May: 76%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is July (70%).

Average rainfall in May
Graham, WA

Average rainfall in May: 1.85"

The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").

Average rainfall days in May
Graham, WA

Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (4.8 days).

Average snowfall in May
Graham, WA

Average snowfall in May: 0"

The month with the highest snowfall is February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Graham, WA

Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (4.1 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
Graham, WA

Average daylight in May: 15h and 6min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

Average sunshine in May: 8h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

Average sunshine days in May
Graham, WA

Average sunshine days in May: 15 days

The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is November (9.3 days).

Average UV index in May
Graham, WA

Average UV index in May: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).