Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July's weather records an average high-temperature of an agreeable 70.5°F (21.4°C), showing little deviation from June. Lummi Island records a mean low-temperature of 52.5°F (11.4°C) in July.Humidity
With an average relative humidity of 74%, July is the least humid month.Rainfall
July is the month with the least rainfall. Rain falls for 7.8 days and accumulates 0.67" (17mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in July is 15h and 40min.On the first day of the month, sunrise is at 5:12 am and sunset at 9:17 pm. On the last day of July, sunrise is at 5:44 am and sunset at 8:49 pm PDT.
Sunshine
July and August, with an average of 10.5h of sunshine, are months with the most sunshine in Lummi Island, Washington.UV index
The months with the highest UV index in Lummi Island are June and July, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 during July translates into the following guidance:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in July?
What is the least humid month in Lummi Island?
What is the average humidity in July?
What is the driest month?
How much does it rain in July?
When it does not snow?
What is the average length of the day in July?
When is the sunrise / sunset in July?
What is the month with the most sunshine?
How long on average sun shines in July?
What are the months with the highest UV index?
What is the UV index reading in July?
Average temperature in July
Lummi Island, WA
- Average high temperature in July: 70.5°F
The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is December (41.9°F).
- Average low temperature in July: 52.5°F
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is February (35.2°F).
Average pressure in July
Lummi Island, WA
- Average pressure in July: 30.03"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 July
Lummi Island, WA
- Average wind speed in July: 4mph
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 July
Lummi Island, WA
- Average humidity in July: 74%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (74%).
Average rainfall in July
Lummi Island, WA
- Average rainfall in July: 0.67"
The wettest month (with the highest rainfall) is November (5.71").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in July
Lummi Island, WA
- Average rainfall days in July: 7.8 days
The month with the highest number of rainy days is November (20.1 days).
The month with the least rainy days is August (7.3 days).
Average snowfall in July
Lummi Island, WA
- Average snowfall in July: 0"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Lummi Island, WA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Lummi Island, WA
- Average daylight in July: 15h and 4min
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 July: 10h and 3min
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 July
Lummi Island, WA
- Average sunshine days in July: 21.8 days
The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in July
Lummi Island, WA
- Average UV index in July: 5
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Lummi Island, WA
- Average cloud cover in July: 26
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 July
Lummi Island, WA
- Average visibility in July: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Lummi Island, Washington, USA
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