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
May's arrival sees a mild rise in the average high-temperature, transitioning from April's mild 56.7°F (13.7°C) to an enjoyable 65.1°F (18.4°C). Manchester's nighttime temperature in May drops to an average of 45°F (7.2°C).Humidity
In May, the average relative humidity is 75%.Rainfall
In Manchester, in May, it is raining for 11.8 days, with typically 0.83" (21mm) of accumulated precipitation. Throughout the year, in Manchester, there are 138.9 rainfall days, and 12.24" (311mm) of precipitation is accumulated.Snowfall
In Manchester, snow does not fall in April through October.Ocean temperature
In Manchester, the average seawater temperature in May is 46.6°F (8.1°C).Note: Swimming in 46.6°F (8.1°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.
Daylight
In Manchester, the average length of the day in May is 15h and 9min.On the first day of May, sunrise is at 5:51 am and sunset at 8:22 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:59 pm PDT.
Sunshine
In Manchester, the average sunshine in May is 9.2h.UV index
In May, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 4 in May translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
How cold is the water in May?
How many hours of daylight does Manchester have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Manchester have in May?
What is the UV index intensity in May?
Average temperature in May
Manchester, WA
- Average high temperature in May: 65.1°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 (43.2°F).
- Average low temperature in May: 45°F
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).
Average pressure in May
Manchester, WA
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed in May
Manchester, WA
- Average wind speed in May: 4.2mph
The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).
Average humidity in May
Manchester, WA
- Average humidity in May: 75%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in May
Manchester, WA
- Average rainfall in May: 0.83"
The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in May
Manchester, WA
- Average rainfall days in May: 11.8 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).
Average snowfall in May
Manchester, WA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Manchester, WA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Manchester, WA
- Average sea temperature in May: 46.6°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 (45.3°F).
Average daylight in May /
Average sunshine in May
Manchester, WA
- Average daylight in May: 15h and 1min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in May: 9h and 1min
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
Manchester, WA
- Average sunshine days in May: 16.4 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in May
Manchester, 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 2).
Average cloud cover in May
Manchester, WA
- Average cloud cover in May: 42
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in May
Manchester, WA
- Average visibility in May: 6mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
Manchester, Washington, USA
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