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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January is a chilly winter month in Lummi Island, Washington, with an average temperature varying between 36°F (2.2°C) and 43.3°F (6.3°C). With January's arrival, Lummi Island notes an average high-temperature of a frosty 43.3°F (6.3°C), closely following the trend of the preceding month. Weather in January »
Weather in February
February, the last month of the winter in Lummi Island, is also a frosty month, with an average temperature fluctuating between 44.2°F (6.8°C) and 35.2°F (1.8°C). February's arrival shows an average high-temperature of a still frosty 44.2°F (6.8°C), hardly different from the previous month. Weather in February »
Weather in March
March, the first month of the spring in Lummi Island, is still a chilly month, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 48.7°F (9.3°C). The beginning of March records an average high-temperature of a still frosty 48.7°F (9.3°C), marking a negligible difference from February's 44.2°F (6.8°C). Weather in March »
Weather in April
April in Lummi Island, Washington, is a fresh spring month, with an average temperature fluctuating between 41°F (5°C) and 54.1°F (12.3°C). In April, the meteorological conditions subtly change with the average high-temperature edging from a chilly 48.7°F (9.3°C) in March to a fresh 54.1°F (12.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Lummi Island, Washington, with an average temperature fluctuating between 61.5°F (16.4°C) and 45.7°F (7.6°C). The arrival of May signals a slight increase in the average high-temperature, moving from a cool 54.1°F (12.3°C) in April to a comfortable 61.5°F (16.4°C). Weather in May »
Weather in June
The first month of the summer, June, is still a comfortable month in Lummi Island, Washington, with an average temperature ranging between min 48.9°F (9.4°C) and max 65.5°F (18.6°C). The advent of June presents an average high-temperature of a still enjoyable 65.5°F (18.6°C), maintaining a close correlation with the preceding month. Weather in June »
Weather in July
July is an agreeable summer month in Lummi Island, Washington, with an average temperature ranging between max 70.5°F (21.4°C) and min 52.5°F (11.4°C). July notes an average high-temperature of an agreeable 70.5°F (21.4°C), subtly differing from June's 65.5°F (18.6°C). Weather in July »
Weather in August
The last month of the summer, August, is also an agreeable month in Lummi Island, Washington, with an average temperature varying between 71.1°F (21.7°C) and 53.8°F (12.1°C). Lummi Island's temperatures peak on average in August, reaching 71.1°F (21.7°C) at their highest and 53.8°F (12.1°C) at their lowest. Weather in August »
Weather in September
September, the first month of the autumn in Lummi Island, is still a refreshing month, with an average temperature ranging between min 50.9°F (10.5°C) and max 65.3°F (18.5°C). September witnesses a gentle descent in average high-temperature, descending from August's pleasant 71.1°F (21.7°C) to an enjoyable 65.3°F (18.5°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Lummi Island, Washington, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 56.5°F (13.6°C). October signifies a gentle decline in Lummi Island's average high-temperature, easing from an enjoyable 65.3°F (18.5°C) in September to a still refreshing 56.5°F (13.6°C). Weather in October »
Weather in November
November, the last month of the autumn in Lummi Island, is also a frosty month, with temperature in the range of an average high of 47.7°F (8.7°C) and an average low of 39.9°F (4.4°C). During the shift to November, Lummi Island records a mild decrease in average high-temperature, moving from a mild 56.5°F (13.6°C) in October to a chilly 47.7°F (8.7°C). Weather in November »
Weather in December
December, the first month of the winter in Lummi Island, is also a wintry month, with an average temperature ranging between max 41.9°F (5.5°C) and min 35.4°F (1.9°C). Temperature records mark December as the coldest month, with highs averaging 41.9°F (5.5°C) and lows at 35.4°F (1.9°C). Weather in December »
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the most humid month?
January is the most humid month, with an average relative humidity of 84%.
How many days does it rain?
Throughout the year, there are 178.6 rainfall days, and 37.32" (948mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
How many days does it snow?
Throughout the year, there are 10.7 snowfall days, and 6.57" (167mm) of snow is accumulated.
What is the month with the least sunshine?
January and December, with an average of 4.2h of sunshine, are months with the least sunshine.
What are the months with the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the snowiest month in Lummi Island?
The month with the most snowfall is February, when snow falls for 3.8 days and typically aggregates up to 2.56" (65mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from PDT to PST.
When it does not snow?
May through October are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 16h and 6min of daylight.
What are the months with the highest UV index?
June and July, with an average maximum UV index of 5, are months with the highest UV index.
What is the least humid month?
With an average relative humidity of 74%, July is the least humid month.
What is the driest month?
July is the month with the least rainfall. Rain falls for 7.8 days and accumulates 0.67" (17mm) of precipitation.
What is the month with the most sunshine?
July and August, with an average of 10.5h of sunshine, are months with the most sunshine in Lummi Island.
What is the hottest time of year?
The month of August sees the average highest temperatures, reaching 71.1°F (21.7°C) at the peak and 53.8°F (12.1°C) at the low.
What is the rainiest month?
The month with the most rainfall is November, when the rain falls for 20.1 days and typically aggregates up to 5.71" (145mm) of precipitation.
What is the coldest month?
In Lummi Island, the average lowest temperatures are observed in December, with a high of 41.9°F (5.5°C) and a low of 35.4°F (1.9°C).
What is the month with the shortest days?
With an average of 8h and 24min of daylight, December has the shortest days of the year in Lummi Island.
Average temperature
Lummi Island, WA
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).
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
Lummi Island, WA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.02"Hg - Average pressure in December:
30.07"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
Lummi Island, WA
- Average wind speed in January:
6mph - Average wind speed in February:
6mph - Average wind speed in March:
5.8mph - Average wind speed in April:
5.2mph - Average wind speed in May:
4.2mph - Average wind speed in June:
4.3mph
- Average wind speed in July:
4mph - Average wind speed in August:
3.7mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.9mph - Average wind speed in November:
6.2mph - Average wind speed in December:
6.1mph
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
Lummi Island, WA
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is July (74%).
Average rainfall
Lummi Island, WA
- Average rainfall in January:
5" - Average rainfall in February:
3.35" - Average rainfall in March:
4.09" - Average rainfall in April:
2.8" - Average rainfall in May:
1.97" - Average rainfall in June:
1.34"
- Average rainfall in July:
0.67" - Average rainfall in August:
1.02" - Average rainfall in September:
2.52" - Average rainfall in October:
4.09" - Average rainfall in November:
5.71" - Average rainfall in December:
4.76"
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
Lummi Island, WA
- Average rainfall days in January:
17.3 days - Average rainfall days in February:
15.8 days - Average rainfall days in March:
20 days - Average rainfall days in April:
17.8 days - Average rainfall days in May:
12.6 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
7.3 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
16.4 days - Average rainfall days in November:
20.1 days - Average rainfall days in December:
18.3 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
Lummi Island, WA
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
Lummi Island, WA
- Average snowfall days in January:
2.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.7 days - Average snowfall days in December:
1.8 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 / Average sunshine
Lummi Island, WA
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 1min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 2min - Average daylight in June:
16h and 1min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 2min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 1min - Average daylight in December:
8h 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 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 5min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 4min - Average sunshine in December:
4h and 1min
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
Lummi Island, WA
- Average sunshine days in January:
11.7 days - Average sunshine days in February:
9.4 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
16.7 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
21.8 days - Average sunshine days in August:
21.9 days - Average sunshine days in September:
15.3 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
8.5 days - Average sunshine days in December:
11.2 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
Lummi Island, WA
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
Lummi Island, WA
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
Lummi Island, WA
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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