Climate and monthly weather forecastOrcas, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Orcas, Washington, is another chilly winter month, with an average temperature varying between 45.3°F (7.4°C) and 41°F (5°C). The months of January, February and December see the lowest levels of Orcas's temperatures, averaging a high of 45.3°F (7.4°C). Weather in January »Weather in February
February, the last month of the winter in Orcas, is another chilly month, with temperature in the range of an average high of 45.3°F (7.4°C) and an average low of 40.5°F (4.7°C). The coldest months are January, February and December, with an average high-temperature of 45.3°F (7.4°C). Weather in February »Weather in March
March, the first month of the spring in Orcas, is still a chilly month, with an average temperature fluctuating between 43°F (6.1°C) and 48.4°F (9.1°C). Orcas's weather in March, with an average high-temperature of a still chilly 48.4°F (9.1°C), subtly shifts from February's 45.3°F (7.4°C). Weather in March »Weather in April
April is a fresh spring month in Orcas, Washington, with an average temperature varying between 46.2°F (7.9°C) and 52.2°F (11.2°C). April's advent denotes a minor fluctuation in the average high-temperature to a fresh 52.2°F (11.2°C) from March's 48.4°F (9.1°C). Weather in April »Weather in May
The last month of the spring, May, is a mild month in Orcas, Washington, with temperature in the range of an average low of 50.9°F (10.5°C) and an average high of 57.7°F (14.3°C). With the onset of May, Orcas's weather sees a minor temperature rise, transitioning from a cool 52.2°F (11.2°C) in April to a refreshing 57.7°F (14.3°C). Weather in May »Weather in June
June, the first month of the summer in Orcas, is a comfortable month, with an average temperature varying between 61.3°F (16.3°C) and 54°F (12.2°C). Orcas sees the arrival of June with an average high-temperature of a comfortable 61.3°F (16.3°C), indicating a subtle variation from May. Weather in June »Weather in July
July, the same as June, is another refreshing summer month in Orcas, Washington, with an average temperature varying between 64.9°F (18.3°C) and 57.2°F (14°C). The warmest time of the year is July, with temperatures averaging a high of 64.9°F (18.3°C) and a low of 57.2°F (14°C). Weather in July »Weather in August
August, the last month of the summer in Orcas, is another comfortable month, with an average temperature fluctuating between 64.4°F (18°C) and 57.7°F (14.3°C). The transition into August shows a subtle variation to a still refreshing 64.4°F (18°C) from July's 64.9°F (18.3°C) in the average high-temperature. Weather in August »Weather in September
The first month of the autumn, September, is still a comfortable month in Orcas, Washington, with temperature in the range of an average low of 55.6°F (13.1°C) and an average high of 61.3°F (16.3°C). The weather during September records an average high-temperature of a still enjoyable 61.3°F (16.3°C), closely mirroring the preceding month. Weather in September »Weather in October
October, like September, is another refreshing autumn month in Orcas, Washington, with an average temperature varying between 55.4°F (13°C) and 50.9°F (10.5°C). October sees a slight reduction in average high-temperature, with a shift from a refreshing 61.3°F (16.3°C) in September to a moderate 55.4°F (13°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Orcas, Washington, with an average temperature fluctuating between 50.2°F (10.1°C) and 45.5°F (7.5°C). October's transformation into November witnesses an average high-temperature of a fresh 50.2°F (10.1°C), noting a minor change from the preceding month. Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Orcas, Washington, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 45.3°F (7.4°C). Orcas's coldest season falls during January, February and December, averaging a high-temperature of 45.3°F (7.4°C). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Orcas, WA
The warmest month (with the highest average high temperature) is July (64.9°F).
The months with the lowest average high temperature are January, February and December (45.3°F).
The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is February (40.5°F).
Average pressure
Orcas, WA
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.05"Hg - Average pressure in August:
30.02"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:
30.06"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed
Orcas, WA
- Average wind speed in January:
9.7mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.4mph - Average wind speed in April:
8.5mph - Average wind speed in May:
6.2mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.7mph - Average wind speed in October:
7.7mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.5mph
The windiest month (with the highest average wind speed) is November (10.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity
Orcas, WA
The months with the highest relative humidity are January, August and September (79%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Orcas, WA
- Average rainfall in January:
3.15" - Average rainfall in February:
2.87" - Average rainfall in March:
2.17" - Average rainfall in April:
1.69" - Average rainfall in May:
1.34" - Average rainfall in June:
0.91"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.71" - Average rainfall in September:
1.34" - Average rainfall in October:
2.48" - Average rainfall in November:
3.43" - Average rainfall in December:
2.95"
The wettest month (with the highest rainfall) is November (3.43").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Orcas, WA
- Average rainfall days in January:
17.3 days - Average rainfall days in February:
16.8 days - Average rainfall days in March:
20.2 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
9.6 days
- Average rainfall days in July:
6.1 days - Average rainfall days in August:
5.3 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
15.5 days - Average rainfall days in November:
19.1 days - Average rainfall days in December:
17.6 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall
Orcas, WA
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Orcas, WA
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
2.7 days - Average snowfall days in March:
0.7 days - Average snowfall days in April:
0.2 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:
0.5 days - Average snowfall days in December:
1.3 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Orcas, WA
- Average daylight in January:
8h and 48min - Average daylight in February:
10h and 12min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 18min - Average daylight in June:
16h and 6min
- Average daylight in July:
15h and 42min - Average daylight in August:
14h and 18min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 12min - Average daylight in December:
8h and 24min
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 12min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 24min - Average sunshine in May:
9h and 36min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
10h and 48min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 30min - Average sunshine in November:
4h and 42min - Average sunshine in December:
4h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days
Orcas, WA
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
8.9 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
17.1 days - Average sunshine days in June:
18.1 days
- Average sunshine days in July:
24.3 days - Average sunshine days in August:
24.7 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
8.7 days - Average sunshine days in December:
10.6 days
The month with the most sunshine days is August (24.7 days).
The month with the least sunshine days is November (8.7 days).
Average UV index
Orcas, WA
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
Orcas, WA
The months with the most cloud cover are February and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility
Orcas, WA
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).





