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 sea temperature 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
The embrace of May brings a minor uplift in the average high-temperature in Bellingham, shifting from a cool 54°F (12.2°C) in April to an enjoyable 61.3°F (16.3°C). May is noted for a mean low-temperature of 45°F (7.2°C).Humidity
The average relative humidity in May in Bellingham is 77%.Rainfall
In Bellingham, in May, it is raining for 12.3 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, in Bellingham, Washington, there are 158 rainfall days, and 18.7" (475mm) of precipitation is accumulated.Snowfall
In Bellingham, snow does not fall in May through October.Ocean temperature
In May, the average ocean temperature in Bellingham is 46°F (7.8°C).Note: Caution: 46°F (7.8°C) temperatures below 50°F (10°C) during swimming can result in intense cold shock and quickened breathing.
Daylight
In Bellingham, the average length of the day in May is 15h and 17min.On the first day of the month, sunrise is at 5:47 am and sunset at 8:25 pm. On the last day of May, in Bellingham, Washington, sunrise is at 5:11 am and sunset at 9:04 pm PDT.
Sunshine
In Bellingham, the average sunshine in May is 9.3h.UV index
In May, the average daily maximum UV index in Bellingham is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a regular UV index of 4 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. It's recommended to limit sun exposure when its radiation is at its peak during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Bellingham in May?
What is the average humidity in May in Bellingham?
How many days does it rain in May in Bellingham?
When it does not snow in Bellingham?
Does it snow in Bellingham in May?
What is the ocean temperature in May in Bellingham?
What is the average length of the day in May in Bellingham?
When are sunrise and sunset in May in Bellingham?
How many hours of sunshine does Bellingham have in May?
What is the UV index intensity in May in Bellingham?
Average temperature in May
Bellingham, WA
- Average high temperature in May: 61.3°F
The warmest months (with the highest average high temperature) are July and August (70.3°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in May: 45°F
The month with the highest average low temperature is August (53.2°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).
Average pressure in May
Bellingham, WA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed in May
Bellingham, WA
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is November (6.2mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in May
Bellingham, WA
- Average humidity in May: 77%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (74%).
Average rainfall in May
Bellingham, WA
- Average rainfall in May: 1.54"
The wettest month (with the highest rainfall) is November (2.64").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in May
Bellingham, WA
- Average rainfall days in May: 12.3 days
The month with the highest number of rainy days is March (17.3 days).
The month with the least rainy days is August (7.1 days).
Average snowfall in May
Bellingham, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Bellingham, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Bellingham, WA
- Average sea temperature in May: 45.9°F
The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).
Average daylight in May /
Average sunshine in May
Bellingham, WA
- Average daylight in May: 15h and 2min
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 18min).
- Average sunshine in May: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in May
Bellingham, WA
- Average sunshine days in May: 16 days
The month with the most sunshine days is July (22.3 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in May
Bellingham, 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, November and December (UV index 2).
Average cloud cover in May
Bellingham, WA
- Average cloud cover in May: 40
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Bellingham, WA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Bellingham, Washington, USA
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