Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Graham in May?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index reading in May?
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 1min
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 4min
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).
Average cloud cover in May
Graham, WA
- Average cloud cover in May: 46
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Graham, WA
- Average visibility in May: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January and February (4mi).
Graham, Washington, USA
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