Climate and monthly weather forecastDeer Island, OR
Climate and monthly weather forecast
Weather in January
January is a frosty winter month in Deer Island, Oregon, with an average temperature varying between 33.4°F (0.8°C) and 44.4°F (6.9°C). Deer Island in January witnesses an average high-temperature of a chilly 44.4°F (6.9°C), indicating a slight variation from December's 42.6°F (5.9°C). Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Deer Island, Oregon, with temperature in the range of an average high of 45.9°F (7.7°C) and an average low of 34°F (1.1°C). During February, the average high-temperature is a still chilly 45.9°F (7.7°C), maintaining a close resemblance to that of the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Deer Island, Oregon, with an average temperature varying between 35.6°F (2°C) and 50.5°F (10.3°C). With the start of March, Deer Island measures an average high-temperature of a fresh 50.5°F (10.3°C), not significantly differing from February's 45.9°F (7.7°C). Weather in March »Weather in April
April is a mild spring month in Deer Island, Oregon, with an average temperature ranging between max 56.3°F (13.5°C) and min 37.6°F (3.1°C). Deer Island in April denotes a subtle temperature transition, adjusting from an average high of a cool 50.5°F (10.3°C) in March to a moderate 56.3°F (13.5°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Deer Island, Oregon, with an average temperature fluctuating between 42.1°F (5.6°C) and 65.1°F (18.4°C). May comes with a subtle rise, with the average high-temperature adjusting from a moderate 56.3°F (13.5°C) in April to a still refreshing 65.1°F (18.4°C). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Deer Island, Oregon, with an average temperature varying between 70.3°F (21.3°C) and 45.9°F (7.7°C). The dawn of June sees an average high-temperature of a pleasant 70.3°F (21.3°C), subtly contrasting with May's 65.1°F (18.4°C). Weather in June »Weather in July
July in Deer Island, Oregon, is a moderately hot summer month, with an average temperature fluctuating between 50.4°F (10.2°C) and 78.1°F (25.6°C). Observing a slight rise in July, the average high-temperature shifts from June's agreeable 70.3°F (21.3°C) to a moderately hot 78.1°F (25.6°C). Weather in July »Weather in August
August, the last month of the summer in Deer Island, is also a moderately hot month, with an average temperature ranging between min 51.6°F (10.9°C) and max 79.3°F (26.3°C). Deer Island's August weather, with an average high temperature of 79.3°F (26.3°C) and an average low temperature of 51.6°F (10.9°C), tends to be the warmest of the year. Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Deer Island, Oregon, with an average temperature varying between 71.6°F (22°C) and 48.7°F (9.3°C). September indicates a minor shift in the average high-temperature, from August's moderately hot 79.3°F (26.3°C) to a pleasant 71.6°F (22°C). Weather in September »Weather in October
October, the same as September, in Deer Island, Oregon, is another refreshing autumn month, with an average temperature ranging between max 59.5°F (15.3°C) and min 43.2°F (6.2°C). Deer Island experiences a temperature shift at the start of October, with average high-temperatures adjusting from a pleasant 71.6°F (22°C) in September to a refreshing 59.5°F (15.3°C). Weather in October »Weather in November
November, the last month of the autumn in Deer Island, is another chilly month, with temperature in the range of an average low of 38.1°F (3.4°C) and an average high of 48.9°F (9.4°C). A change in temperatures is noted as October gives way to November, with average highs reducing from a moderate 59.5°F (15.3°C) to a chilly 48.9°F (9.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Deer Island, Oregon, with an average temperature varying between 32.9°F (0.5°C) and 42.6°F (5.9°C). December is the month when Deer Island sees the lowest average temperatures, with a high of 42.6°F (5.9°C) and a low of 32.9°F (0.5°C). Weather in December »Updated: Aug 27, 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
The month with the most rainfall is January, when the rain falls for 18.8 days and typically aggregates up to 5.43" (138mm) of precipitation.
Throughout the year, there are 180.2 rainfall days, and 36.77" (934mm) of precipitation is accumulated.
Months with snowfall are January through March, November and December.
January is the month with the most snowfall. Snow falls for 1.7 days and accumulates 2.01" (51mm) of snow.
In Deer Island, during the entire year, snow falls for 7.6 days and aggregates up to 5.79" (147mm) of snow.
The months with the least sunshine are January and February, with an average of 3.7h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
The months with the highest humidity are February and November, with an average relative humidity of 87%.
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.
In Deer Island, snow does not fall in April through October.
With an average of 15h and 42min of daylight, June has the longest days of the year.
July and August, with an average relative humidity of 70%, are the least humid months.
July is the month with the least rainfall. Rain falls for 5.2 days and accumulates 0.35" (9mm) of precipitation.
The month with the highest UV index is July, with an average maximum UV index of 6.
The average temperatures in Deer Island reach their apex in August, averaging 79.3°F (26.3°C) at the high end and 51.6°F (10.9°C) at the low end.
August has the most sunshine of the year in Deer Island, with an average of 10.7h of sunshine.
December, having an average high-temperature of 42.6°F (5.9°C) and an average low-temperature of 32.9°F (0.5°C), is the coldest month.
December has the shortest days of the year, with an average of 8h and 42min of daylight.
Average temperature
Deer Island, OR
The warmest month (with the highest average high temperature) is August (79.3°F).
The month with the lowest average high temperature is December (42.6°F).
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure
Deer Island, OR
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.04"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:
30.1"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
Deer Island, OR
- Average wind speed in January:
4.9mph - Average wind speed in February:
4.7mph - Average wind speed in March:
4.8mph - Average wind speed in April:
4.5mph - Average wind speed in May:
4.2mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
4.4mph - Average wind speed in August:
4.1mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.2mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.7mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is September (3.9mph).
Average humidity
Deer Island, OR
The months with the highest relative humidity are February and November (87%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall
Deer Island, OR
- Average rainfall in January:
5.43" - Average rainfall in February:
3.94" - Average rainfall in March:
4.13" - Average rainfall in April:
3.27" - Average rainfall in May:
2.2" - Average rainfall in June:
1.57"
- Average rainfall in July:
0.35" - Average rainfall in August:
0.43" - Average rainfall in September:
1.69" - Average rainfall in October:
4.13" - Average rainfall in November:
4.37" - Average rainfall in December:
5.24"
The wettest month (with the highest rainfall) is January (5.43").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days
Deer Island, OR
- Average rainfall days in January:
18.8 days - Average rainfall days in February:
17.3 days - Average rainfall days in March:
21 days - Average rainfall days in April:
19.3 days - Average rainfall days in May:
14.6 days - Average rainfall days in June:
11.8 days
- Average rainfall days in July:
5.2 days - Average rainfall days in August:
5.6 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
16.5 days - Average rainfall days in November:
19.5 days - Average rainfall days in December:
19.5 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is July (5.2 days).
Average snowfall
Deer Island, OR
The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Deer Island, OR
- Average snowfall days in January:
1.7 days - Average snowfall days in February:
2.9 days - Average snowfall days in March:
1.5 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:
0.6 days - Average snowfall days in December:
0.8 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Deer Island, OR
- Average daylight in January:
9h and 6min - Average daylight in February:
10h and 24min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 0min - Average daylight in June:
15h and 42min
- Average daylight in July:
15h and 18min - Average daylight in August:
14h and 6min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 30min - Average daylight in December:
8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 12min - Average sunshine in April:
6h and 48min - Average sunshine in May:
8h and 18min - Average sunshine in June:
8h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 42min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 0min - Average sunshine in November:
4h and 0min - Average sunshine in December:
3h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days
Deer Island, OR
- Average sunshine days in January:
10.6 days - Average sunshine days in February:
8.3 days - Average sunshine days in March:
8.4 days - Average sunshine days in April:
8.8 days - Average sunshine days in May:
15.2 days - Average sunshine days in June:
15.7 days
- Average sunshine days in July:
24.4 days - Average sunshine days in August:
23.8 days - Average sunshine days in September:
17 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
9 days - Average sunshine days in December:
10.4 days
The month with the most sunshine days is July (24.4 days).
The month with the least sunshine days is February (8.3 days).
Average UV index
Deer Island, OR
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Deer Island, OR
The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Deer Island, OR
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
