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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 a freezing cold winter month in Sumpter, Oregon, with an average temperature fluctuating between 31.8°F (-0.1°C) and 19.4°F (-7°C). Sumpter notes an average high-temperature of a still freezing cold 31.8°F (-0.1°C) in January, displaying minor variation from December. Weather in January »
Weather in February
February, the last month of the winter in Sumpter, is a wintry month, with an average temperature ranging between max 34.3°F (1.3°C) and min 22.6°F (-5.2°C). In Sumpter, February's average high-temperature stands at an icy 34.3°F (1.3°C), closely related to the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Sumpter, is still a cold month, with an average temperature ranging between max 41.9°F (5.5°C) and min 27.3°F (-2.6°C). March's arrival signals a modest temperature shift, moving from a cold 34.3°F (1.3°C) in February to a still icy 41.9°F (5.5°C). Weather in March »
Weather in April
April is a cool spring month in Sumpter, Oregon, with temperature in the range of an average high of 50.5°F (10.3°C) and an average low of 31.1°F (-0.5°C). With the onset of April, Sumpter's weather sees a minor temperature rise, transitioning from a cold 41.9°F (5.5°C) in March to a cool 50.5°F (10.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Sumpter, Oregon, with an average temperature varying between 60.8°F (16°C) and 38.3°F (3.5°C). With the onset of May, the average high-temperature slightly shifts from April's fresh 50.5°F (10.3°C) to a refreshing 60.8°F (16°C). Weather in May »
Weather in June
June, the first month of the summer in Sumpter, is a pleasant month, with an average temperature ranging between max 69.4°F (20.8°C) and min 44.4°F (6.9°C). In June, the meteorological conditions subtly change with the average high-temperature edging from a comfortable 60.8°F (16°C) in May to a pleasant 69.4°F (20.8°C). Weather in June »
Weather in July
July is a moderately hot summer month in Sumpter, Oregon, with temperature in the range of an average high of 81.7°F (27.6°C) and an average low of 52.3°F (11.3°C). With average temperatures fluctuating between a high of 81.7°F (27.6°C) and a low of 52.3°F (11.3°C), July stands out as the warmest month. The heat index value during July is evaluated at 80.6°F (27°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Sumpter, Oregon, with temperature in the range of an average low of 53.8°F (12.1°C) and an average high of 81.3°F (27.4°C). Entering August, the average high-temperature is recorded at a still warm 81.3°F (27.4°C), exhibiting a minimal shift from July's 81.7°F (27.6°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Sumpter, Oregon, with an average temperature fluctuating between 71.2°F (21.8°C) and 47.3°F (8.5°C). Sumpter in September demonstrates a small temperature transition, adjusting from an average high of a moderately hot 81.3°F (27.4°C) in August to an agreeable 71.2°F (21.8°C). Weather in September »
Weather in October
October, the same as September, is a cool autumn month in Sumpter, Oregon, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 36.5°F (2.5°C). October signals a clear decrease in the average high-temperature, dropping from September's pleasant 71.2°F (21.8°C) to a cool 55.2°F (12.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Sumpter, is another cold month, with an average temperature varying between 40.5°F (4.7°C) and 27°F (-2.8°C). Sumpter's weather experiences a significant temperature drop with the arrival of November, falling from a cool 55.2°F (12.9°C) in October to a cold 40.5°F (4.7°C). Weather in November »
Weather in December
The first month of the winter, December, is still a freezing cold month in Sumpter, Oregon, with an average temperature varying between 30.7°F (-0.7°C) and 18.5°F (-7.5°C). In Sumpter, the lowest temperatures are generally noted in December, averaging a high of 30.7°F (-0.7°C) and a low of 18.5°F (-7.5°C). Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Sumpter?
The most humid month is January, with an average relative humidity of 88%.
How many days does it rain in Sumpter?
Throughout the year, there are 113.5 rainfall days, and 12.56" (319mm) of precipitation is accumulated.
When does it snow in Sumpter?
Months with snowfall are January through May, October through December.
How much does it snow in Sumpter?
Throughout the year, in Sumpter, Oregon, there are 65.1 snowfall days, and 38.9" (988mm) of snow is accumulated.
What is the month with the least sunshine in Sumpter?
January has the least sunshine of the year, with an average of 4.8h of sunshine.
When is the lowest UV index in Sumpter?
January is the month with the lowest UV index in Sumpter, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Sumpter?
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 Sumpter?
June through September are months without snowfall.
When are the longest days in Sumpter?
The month with the longest days is June, with an average of 15h and 30min of daylight.
What month is the hottest in Sumpter?
July, recognised by an average high temperature of 81.7°F (27.6°C) and a low of 52.3°F (11.3°C), is Sumpter's warmest month.
When is the highest UV index in Sumpter?
The month with the highest UV index in Sumpter, Oregon, is July, with an average maximum UV index of 6.
What is the least humid month in Sumpter?
With an average relative humidity of 40%, August is the least humid month.
What is the driest month in Sumpter?
August is the month with the least rainfall. Rain falls for 4.4 days and accumulates 0.31" (8mm) of precipitation.
What month has the most sunshine in Sumpter?
August has the most sunshine of the year in Sumpter, Oregon, with an average of 12.1h of sunshine.
What month is the coldest in Sumpter?
The lowest temperatures are recorded in December, with averages reaching a high of 30.7°F (-0.7°C) and a low of 18.5°F (-7.5°C).
What is the wettest month in Sumpter?
The month with the most rainfall in Sumpter, Oregon, is December, when the rain falls for 8.6 days and typically aggregates up to 1.77" (45mm) of precipitation.
What is the snowiest month in Sumpter?
December is the month with the most snowfall in Sumpter. Snow falls for 14.7 days and accumulates 10.59" (269mm) of snow.
What is the month with the shortest days in Sumpter?
The month with the shortest days is December, with an average of 8h and 54min of daylight.
Average temperature
Sumpter, OR
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is December (30.7°F).
The month with the highest average low temperature is August (53.8°F).
The coldest month (with the lowest average low temperature) is December (18.5°F).
Average pressure
Sumpter, OR
- Average pressure in January:
30.22"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.19"Hg
The month with the highest atmospheric pressure is January (30.22"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed
Sumpter, OR
- Average wind speed in January:
5.5mph - Average wind speed in February:
5.5mph - Average wind speed in March:
5.8mph - Average wind speed in April:
6.2mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.4mph - Average wind speed in October:
5.4mph - Average wind speed in November:
5.7mph - Average wind speed in December:
5.8mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are September and October (5.4mph).
Average humidity
Sumpter, OR
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is August (40%).
Average rainfall
Sumpter, OR
- Average rainfall in January:
1.61" - Average rainfall in February:
1.54" - Average rainfall in March:
1.57" - Average rainfall in April:
1.02" - Average rainfall in May:
1.22" - Average rainfall in June:
0.79"
- Average rainfall in July:
0.35" - Average rainfall in August:
0.31" - Average rainfall in September:
0.43" - Average rainfall in October:
0.91" - Average rainfall in November:
1.02" - Average rainfall in December:
1.77"
The wettest month (with the highest rainfall) is December (1.77").
The driest month (with the least rainfall) is August (0.31").
Average rainfall days
Sumpter, OR
- Average rainfall days in January:
7.9 days - Average rainfall days in February:
9 days - Average rainfall days in March:
15.6 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
9.9 days
- Average rainfall days in July:
4.8 days - Average rainfall days in August:
4.4 days - Average rainfall days in September:
6.5 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
8.6 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (4.4 days).
Average snowfall
Sumpter, OR
- Average snowfall in January:
9.76" - Average snowfall in February:
8.03" - Average snowfall in March:
4.25" - Average snowfall in April:
1.18" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is December (10.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Sumpter, OR
- Average snowfall days in January:
14.3 days - Average snowfall days in February:
13.8 days - Average snowfall days in March:
9.1 days - Average snowfall days in April:
3.5 days - Average snowfall days in May:
0.4 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:
0.2 days - Average snowfall days in October:
1.6 days - Average snowfall days in November:
7.5 days - Average snowfall days in December:
14.7 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Sumpter, 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 5min - Average sunshine in February:
4h and 5min - Average sunshine in March:
7h and 2min - Average sunshine in April:
10h and 2min - Average sunshine in May:
11h and 1min - Average sunshine in June:
11h and 3min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 1min - Average sunshine in September:
10h and 4min - Average sunshine in October:
7h and 3min - Average sunshine in November:
6h and 1min - Average sunshine in December:
5h and 1min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days
Sumpter, OR
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
11.3 days - Average sunshine days in March:
11.3 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
17.3 days
- Average sunshine days in July:
22.7 days - Average sunshine days in August:
21.9 days - Average sunshine days in September:
21.4 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
15.7 days - Average sunshine days in December:
13.9 days
The month with the most sunshine days is July (22.7 days).
The months with the least sunshine days are February and March (11.3 days).
Average UV index
Sumpter, OR
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Sumpter, OR
The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility
Sumpter, OR
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Sumpter, Oregon, USA
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