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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, like December, is another chilly winter month in Foster, Oregon, with temperature in the range of an average low of 34.3°F (1.3°C) and an average high of 46.9°F (8.3°C). Foster's average high-temperature in January sits at a still frosty 46.9°F (8.3°C), showing little difference from the previous month. Weather in January »
Weather in February
February, the last month of the winter in Foster, is another chilly month, with an average temperature varying between 33.8°F (1°C) and 47.3°F (8.5°C). Foster observes a minor difference in average high-temperatures between January's 46.9°F (8.3°C) and February's 47.3°F (8.5°C). Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Foster, Oregon, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 50.2°F (10.1°C). March's weather records an average high-temperature of a fresh 50.2°F (10.1°C), showing little deviation from February. Weather in March »
Weather in April
April in Foster, Oregon, is a refreshing spring month, with temperature in the range of an average high of 55.9°F (13.3°C) and an average low of 36.9°F (2.7°C). The shift from March to April sees a slight increase in the average high-temperature, transitioning from a cool 50.2°F (10.1°C) to a refreshing 55.9°F (13.3°C). Weather in April »
Weather in May
May, the last month of the spring in Foster, is an enjoyable month, with an average temperature varying between 63.9°F (17.7°C) and 40.6°F (4.8°C). May's onset is marked by a subtle temperature increase, moving from a moderate 55.9°F (13.3°C) in April to an enjoyable 63.9°F (17.7°C). Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Foster, Oregon, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 44.2°F (6.8°C). Foster observes a slight uplift in the average high-temperature with the onset of June, adjusting from May's refreshing 63.9°F (17.7°C) to a pleasant 69.4°F (20.8°C). Weather in June »
Weather in July
July is a warm summer month in Foster, Oregon, with temperature in the range of an average low of 48°F (8.9°C) and an average high of 78.4°F (25.8°C). The rise of average high-temperatures is seen in July, with an increase from an agreeable 69.4°F (20.8°C) in June to a warm 78.4°F (25.8°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Foster, Oregon, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 49.8°F (9.9°C). August is the warmest month, with an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 49.8°F (9.9°C). Weather in August »
Weather in September
September, the first month of the autumn in Foster, is also an agreeable month, with an average temperature ranging between min 47.3°F (8.5°C) and max 72.3°F (22.4°C). September sees a slight reduction in average high-temperature, with a shift from a warm 79.5°F (26.4°C) in August to an agreeable 72.3°F (22.4°C). Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Foster, Oregon, with temperature in the range of an average high of 61.5°F (16.4°C) and an average low of 42.8°F (6°C). With October's arrival, Foster sees a decrease in average high-temperatures, moving from an agreeable 72.3°F (22.4°C) in September to a comfortable 61.5°F (16.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Foster, is also a fresh month, with an average temperature ranging between max 50.7°F (10.4°C) and min 38.1°F (3.4°C). November ushers in a slight temperature change, with average high-temperatures reducing from October's comfortable 61.5°F (16.4°C) to a cool 50.7°F (10.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Foster, Oregon, with an average temperature ranging between max 44.4°F (6.9°C) and min 32.9°F (0.5°C). In Foster, Oregon, the lowest average temperatures are observed in December, with a high of 44.4°F (6.9°C) and a low of 32.9°F (0.5°C). Weather in December »
[Resources]Frequently asked questions
How many days does it rain in Foster?
In Foster, during the entire year, the rain falls for 167.6 days and collects up to 36.54" (928mm) of precipitation.
When does it snow in Foster?
Months with snowfall are January through April, November and December.
How many days does it snow in Foster?
In Foster, during the entire year, snow falls for 7.9 days and aggregates up to 7.76" (197mm) of snow.
What is the most humid month in Foster?
February, March and December, with an average relative humidity of 86%, are most humid months in Foster.
When does it snow the most in Foster?
February is the month with the most snowfall. Snow falls for 3.4 days and accumulates 3.7" (94mm) of snow.
What is the month with the least sunshine in Foster?
The month with the least sunshine is February, with an average of 4.1h of sunshine.
When is Daylight Saving Time (DST) in Foster?
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 in Foster?
In Foster, snow does not fall in May through October.
When are the longest days in Foster?
June has the longest days of the year in Foster, with an average of 15h and 30min of daylight.
What is the driest month in Foster?
July is the month with the least rainfall in Foster. Rain falls for 4.1 days and accumulates 0.24" (6mm) of precipitation.
When is the highest UV index in Foster?
With an average maximum UV index of 6, July is the month with the highest UV index.
What is the warmest month in Foster?
Foster's temperatures tend to reach their peak averages in August, with a high of 79.5°F (26.4°C) and a low of 49.8°F (9.9°C).
What is the least humid month in Foster?
August is the least humid month in Foster, Oregon, with an average relative humidity of 66%.
What month has the most sunshine in Foster?
With an average of 11.3h of sunshine, August has the most sunshine of the year in Foster, Oregon.
When is the lowest UV index in Foster?
With an average maximum UV index of 1, November is the month with the lowest UV index in Foster.
What is the coldest month in Foster?
December is the month when Foster experiences its coldest temperatures, averaging a high of 44.4°F (6.9°C) and a low of 32.9°F (0.5°C).
What is the rainiest month in Foster?
The month with the most rainfall in Foster is December, when the rain falls for 18.9 days and typically aggregates up to 5.47" (139mm) of precipitation.
What is the month with the shortest days in Foster?
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Foster, OR
The warmest month (with the highest average high temperature) is August (79.5°F).
The month with the lowest average high temperature is December (44.4°F).
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure
Foster, OR
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
30.07"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
Foster, OR
- Average wind speed in January:
5.1mph - Average wind speed in February:
4.8mph - Average wind speed in March:
4.9mph - Average wind speed in April:
4.5mph - Average wind speed in May:
4.1mph - Average wind speed in June:
4mph
- Average wind speed in July:
3.9mph - Average wind speed in August:
3.7mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.3mph - Average wind speed in November:
5mph - Average wind speed in December:
5mph
The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity
Foster, OR
The months with the highest relative humidity are February, March and December (86%).
The month with the lowest relative humidity is August (66%).
Average rainfall
Foster, OR
- Average rainfall in January:
4.92" - Average rainfall in February:
4.45" - Average rainfall in March:
4.49" - Average rainfall in April:
4.06" - Average rainfall in May:
2.17" - Average rainfall in June:
1.5"
- Average rainfall in July:
0.24" - Average rainfall in August:
0.31" - Average rainfall in September:
1.61" - Average rainfall in October:
3.23" - Average rainfall in November:
4.09" - Average rainfall in December:
5.47"
The wettest month (with the highest rainfall) is December (5.47").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days
Foster, OR
- Average rainfall days in January:
17.4 days - Average rainfall days in February:
17.8 days - Average rainfall days in March:
21.1 days - Average rainfall days in April:
18.7 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
10.7 days
- Average rainfall days in July:
4.1 days - Average rainfall days in August:
4.2 days - Average rainfall days in September:
9 days - Average rainfall days in October:
14.1 days - Average rainfall days in November:
17.8 days - Average rainfall days in December:
18.9 days
The month with the highest number of rainy days is March (21.1 days).
The month with the least rainy days is July (4.1 days).
Average snowfall
Foster, OR
The month with the highest snowfall is February (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Foster, OR
- Average snowfall days in January:
1.5 days - Average snowfall days in February:
3.4 days - Average snowfall days in March:
1.6 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:
0.1 days - Average snowfall days in December:
1 days
The month with the highest number of snowfall days is February (3.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Foster, OR
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 3min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
8h and 5min
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:
4h and 2min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 2min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
11h and 2min - Average sunshine in September:
9h and 3min - Average sunshine in October:
5h and 4min - Average sunshine in November:
4h and 5min - Average sunshine in December:
4h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days
Foster, OR
- Average sunshine days in January:
12.3 days - Average sunshine days in February:
8.4 days - Average sunshine days in March:
8.6 days - Average sunshine days in April:
9.8 days - Average sunshine days in May:
15.6 days - Average sunshine days in June:
17.4 days
- Average sunshine days in July:
25.7 days - Average sunshine days in August:
24.8 days - Average sunshine days in September:
19.3 days - Average sunshine days in October:
15.9 days - Average sunshine days in November:
11 days - Average sunshine days in December:
11 days
The month with the most sunshine days is July (25.7 days).
The month with the least sunshine days is February (8.4 days).
Average UV index
Foster, OR
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover
Foster, OR
The months with the most cloud cover are February and March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility
Foster, OR
The month with the highest visibility is August (6mi).
The months with the lowest visibility are February and April (4mi).
Foster, Oregon, USA
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