Climate and monthly weather forecastKeyport, WA
Climate and monthly weather forecast
Weather in January
January, like December, is another chilly winter month in Keyport, Washington, with an average temperature fluctuating between 45.1°F (7.3°C) and 37°F (2.8°C). With the onset of January, the average high-temperature registers at a still chilly 45.1°F (7.3°C), subtly different from December's 43.2°F (6.2°C). Weather in January »Weather in February
February, the last month of the winter in Keyport, is another chilly month, with an average temperature ranging between max 45.7°F (7.6°C) and min 36.1°F (2.3°C). The onset of February marks an average high-temperature of a still frosty 45.7°F (7.6°C), hardly differing from January's 45.1°F (7.3°C). Weather in February »Weather in March
March, the first month of the spring in Keyport, is also a frosty month, with temperature in the range of an average high of 49.6°F (9.8°C) and an average low of 38.7°F (3.7°C). March brings an average high-temperature of a still frosty 49.6°F (9.8°C), nearly identical to the preceding month. Weather in March »Weather in April
April is a cool spring month in Keyport, Washington, with an average temperature fluctuating between 41.5°F (5.3°C) and 55.2°F (12.9°C). As April sets, the average high-temperature shows a slight increase, moving up from a chilly 49.6°F (9.8°C) in March to a cool 55.2°F (12.9°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Keyport, Washington, with an average temperature varying between 46.4°F (8°C) and 63°F (17.2°C). Entering May, Keyport notices a subtle temperature elevation, with the average high-temperature advancing from April's fresh 55.2°F (12.9°C) to an enjoyable 63°F (17.2°C). Weather in May »Weather in June
The first month of the summer, June, is also an enjoyable month in Keyport, Washington, with temperature in the range of an average low of 49.8°F (9.9°C) and an average high of 66.7°F (19.3°C). Keyport experiences an average high-temperature of a still enjoyable 66.7°F (19.3°C) with the onset of June, subtly varied from May's 63°F (17.2°C). Weather in June »Weather in July
July is an agreeable summer month in Keyport, Washington, with an average temperature fluctuating between 73°F (22.8°C) and 54°F (12.2°C). As July begins, there's a slight increase in the average high-temperature, moving from a comfortable 66.7°F (19.3°C) in June to a pleasant 73°F (22.8°C). Weather in July »Weather in August
August, the last month of the summer in Keyport, is a moderately hot month, with temperature in the range of an average high of 73.6°F (23.1°C) and an average low of 54.9°F (12.7°C). The highest temperatures are recorded in August, with averages reaching a high of 73.6°F (23.1°C) and a low of 54.9°F (12.7°C). Weather in August »Weather in September
September, the first month of the autumn in Keyport, is still a comfortable month, with temperature in the range of an average high of 67.3°F (19.6°C) and an average low of 51.8°F (11°C). A mild drop in Keyport's average high-temperature is observed in September, transitioning from a warm 73.6°F (23.1°C) in August to a refreshing 67.3°F (19.6°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Keyport, Washington, with an average temperature varying between 46.2°F (7.9°C) and 58.1°F (14.5°C). Welcoming October, Keyport observes a shift in the average high-temperature, falling from September's comfortable 67.3°F (19.6°C) to a still refreshing 58.1°F (14.5°C). Weather in October »Weather in November
November, the last month of the autumn in Keyport, is another chilly month, with an average temperature varying between 48.4°F (9.1°C) and 40.5°F (4.7°C). The onset of November brings a small change in high-temperatures, falling from a mild 58.1°F (14.5°C) in October to a chilly 48.4°F (9.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a chilly month in Keyport, Washington, with an average temperature fluctuating between 36.3°F (2.4°C) and 43.2°F (6.2°C). December, characterized by an average high temperature of 43.2°F (6.2°C) and a low temperature of 36.3°F (2.4°C), is generally the coldest month. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Keyport, WA
The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is December (43.2°F).
The month with the highest average low temperature is August (54.9°F).
The coldest month (with the lowest average low temperature) is February (36.1°F).
Average pressure
Keyport, WA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.05"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:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"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
Keyport, WA
- Average wind speed in January:
5.6mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.8mph - Average wind speed in April:
5.1mph - Average wind speed in May:
4.1mph - Average wind speed in June:
3.8mph
- Average wind speed in July:
3.5mph - Average wind speed in August:
3.4mph - Average wind speed in September:
4mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5.8mph - Average wind speed in December:
5.3mph
The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity
Keyport, WA
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (71%).
Average rainfall
Keyport, WA
- Average rainfall in January:
3.74" - Average rainfall in February:
2.44" - Average rainfall in March:
2.68" - Average rainfall in April:
1.97" - Average rainfall in May:
1.73" - Average rainfall in June:
1.18"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.55" - Average rainfall in September:
1.22" - Average rainfall in October:
2.4" - Average rainfall in November:
2.99" - Average rainfall in December:
3.23"
The wettest month (with the highest rainfall) is January (3.74").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Keyport, WA
- Average rainfall days in January:
17.4 days - Average rainfall days in February:
16.8 days - Average rainfall days in March:
20.9 days - Average rainfall days in April:
18.7 days - Average rainfall days in May:
14.5 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
7.8 days - Average rainfall days in August:
6.3 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
15.3 days - Average rainfall days in November:
19.3 days - Average rainfall days in December:
17.7 days
The month with the highest number of rainy days is March (20.9 days).
The month with the least rainy days is August (6.3 days).
Average snowfall
Keyport, WA
The month with the highest snowfall is February (2.09").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Keyport, WA
- Average snowfall days in January:
1.8 days - Average snowfall days in February:
2.8 days - Average snowfall days in March:
1.3 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:
0.6 days - Average snowfall days in December:
1 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 daylight / Average sunshine
Keyport, WA
- Average daylight in January:
8h and 54min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 12min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
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 January:
4h and 48min - Average sunshine in February:
4h and 54min - Average sunshine in March:
6h and 48min - Average sunshine in April:
8h and 42min - Average sunshine in May:
9h and 36min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 54min - Average sunshine in September:
9h and 36min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The months with the least sunshine are January and December (Average sunshine: 4h and 48min).
Average sunshine days
Keyport, WA
- Average sunshine days in January:
10.2 days - Average sunshine days in February:
8.4 days - Average sunshine days in March:
7.8 days - Average sunshine days in April:
8.3 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
14.4 days
- Average sunshine days in July:
20.5 days - Average sunshine days in August:
21.7 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
13.2 days - Average sunshine days in November:
9.4 days - Average sunshine days in December:
10.6 days
The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is March (7.8 days).
Average UV index
Keyport, 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
Keyport, WA
The months with the most cloud cover are January and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility
Keyport, 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).





