Climate and monthly weather forecastAlsea, OR
Climate and monthly weather forecast
Weather in January
January, the same as December, in Alsea, Oregon, is another chilly winter month, with an average temperature fluctuating between 46.4°F (8°C) and 34.3°F (1.3°C). Alsea's weather in January displays an average high-temperature of a still chilly 46.4°F (8°C), showing minor disparity from December's 44.2°F (6.8°C). Weather in January »Weather in February
February, the last month of the winter in Alsea, 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 34.3°F (1.3°C). February's arrival registers an average high-temperature of a still frosty 47.7°F (8.7°C), closely aligning with the temperature of the previous month. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Alsea, Oregon, with an average temperature varying between 36°F (2.2°C) and 51.3°F (10.7°C). As March takes hold, the average high-temperature is a cool 51.3°F (10.7°C), nearly mirroring that of the previous month. Weather in March »Weather in April
April is a mild spring month in Alsea, Oregon, with an average temperature fluctuating between 56.8°F (13.8°C) and 36.9°F (2.7°C). The start of April signals a slight increase in the average high-temperature, moving from a cool 51.3°F (10.7°C) in March to a mild 56.8°F (13.8°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Alsea, Oregon, with an average temperature ranging between max 64.6°F (18.1°C) and min 41.5°F (5.3°C). The shift into May is marked by a modest rise in the average high-temperature, moving from April's 56.8°F (13.8°C) to a still refreshing 64.6°F (18.1°C). Weather in May »Weather in June
June, the first month of the summer in Alsea, is an agreeable month, with an average temperature ranging between max 69.8°F (21°C) and min 45.5°F (7.5°C). The ushering in of June brings an average high-temperature of an agreeable 69.8°F (21°C), closely mirroring the 64.6°F (18.1°C) of May. Weather in June »Weather in July
July in Alsea, Oregon, is a warm summer month, with temperature in the range of an average high of 78.1°F (25.6°C) and an average low of 50.2°F (10.1°C). July introduces a marginal temperature uplift, with average high-temperatures adjusting from June's pleasant 69.8°F (21°C) to a warm 78.1°F (25.6°C). Weather in July »Weather in August
August, the last month of the summer in Alsea, is also a moderately hot month, with an average temperature varying between 51.4°F (10.8°C) and 79.7°F (26.5°C). August temperatures tend to peak at an average high of 79.7°F (26.5°C) and dip to a low of 51.4°F (10.8°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Alsea, Oregon, with an average temperature fluctuating between 48.4°F (9.1°C) and 72.3°F (22.4°C). September ushers in a minor alteration in Alsea's climate, with the average high-temperature moving from August's warm 79.7°F (26.5°C) to an agreeable 72.3°F (22.4°C). Weather in September »Weather in October
October, like September, in Alsea, Oregon, is another comfortable autumn month, with an average temperature ranging between max 60.8°F (16°C) and min 43.5°F (6.4°C). October implies a gentle temperature shift, with average high-temperatures reducing from September's agreeable 72.3°F (22.4°C) to a refreshing 60.8°F (16°C). Weather in October »Weather in November
November, the last month of the autumn in Alsea, is another cool month, with temperature in the range of an average low of 38.5°F (3.6°C) and an average high of 50.7°F (10.4°C). Arrival of November comes with a reduction in the average high-temperature, falling from a comfortable 60.8°F (16°C) in October to a cool 50.7°F (10.4°C). Weather in November »Weather in December
December, the first month of the winter in Alsea, is still a chilly month, with an average temperature fluctuating between 44.2°F (6.8°C) and 33.6°F (0.9°C). Alsea's December weather, with an average high temperature of 44.2°F (6.8°C) and an average low temperature of 33.6°F (0.9°C), tends to be the coldest of the year. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Alsea, OR
The warmest month (with the highest average high temperature) is August (79.7°F).
The month with the lowest average high temperature is December (44.2°F).
The month with the highest average low temperature is August (51.4°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure
Alsea, OR
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
30.08"Hg - Average pressure in May:
30.04"Hg - Average pressure in June:
30.05"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:
30.05"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed
Alsea, OR
- Average wind speed in January:
4.5mph - Average wind speed in February:
4.5mph - Average wind speed in March:
4.7mph - Average wind speed in April:
4.7mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
3.7mph - Average wind speed in September:
3.8mph - Average wind speed in October:
4.2mph - Average wind speed in November:
4.5mph - Average wind speed in December:
4.3mph
The windiest months (with the highest average wind speed) are March and April (4.7mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity
Alsea, OR
The month with the highest relative humidity is December (90%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall
Alsea, OR
- Average rainfall in January:
4.92" - Average rainfall in February:
3.94" - Average rainfall in March:
4.29" - Average rainfall in April:
3.11" - Average rainfall in May:
2.01" - Average rainfall in June:
1.26"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.51" - Average rainfall in September:
1.46" - Average rainfall in October:
3.07" - Average rainfall in November:
3.9" - Average rainfall in December:
5.31"
The wettest month (with the highest rainfall) is December (5.31").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Alsea, OR
- Average rainfall days in January:
18.2 days - Average rainfall days in February:
17.4 days - Average rainfall days in March:
20.6 days - Average rainfall days in April:
18.5 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
10.9 days
- Average rainfall days in July:
4.8 days - Average rainfall days in August:
4.6 days - Average rainfall days in September:
9.6 days - Average rainfall days in October:
15 days - Average rainfall days in November:
18.4 days - Average rainfall days in December:
18.5 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.6 days).
Average snowfall
Alsea, OR
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Alsea, OR
- Average snowfall days in January:
1 days - Average snowfall days in February:
2 days - Average snowfall days in March:
1.1 days - Average snowfall days in April:
0.1 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:
0.2 days - Average snowfall days in December:
0.5 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Alsea, OR
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 18min - Average sunshine in March:
4h and 48min - Average sunshine in April:
6h and 12min - Average sunshine in May:
7h and 36min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 6min - Average sunshine in December:
3h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).
Average sunshine days
Alsea, OR
- Average sunshine days in January:
11.7 days - Average sunshine days in February:
8.3 days - Average sunshine days in March:
8.8 days - Average sunshine days in April:
9.4 days - Average sunshine days in May:
15.7 days - Average sunshine days in June:
16.9 days
- Average sunshine days in July:
24.8 days - Average sunshine days in August:
23.9 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
13.6 days - Average sunshine days in November:
10.5 days - Average sunshine days in December:
10.7 days
The month with the most sunshine days is July (24.8 days).
The month with the least sunshine days is February (8.3 days).
Average UV index
Alsea, OR
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
Alsea, OR
The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility
Alsea, OR
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).





