Climate and monthly weather forecastSummer Lake, OR
Climate and monthly weather forecast
Weather in January
January, like December, in Summer Lake, Oregon, is another cold winter month, with an average temperature ranging between max 36.9°F (2.7°C) and min 25.2°F (-3.8°C). In Summer Lake, January's average high-temperature stands at a still wintry 36.9°F (2.7°C), closely related to the preceding month. Weather in January »Weather in February
February, the last month of the winter in Summer Lake, is also an icy month, with temperature in the range of an average low of 25.7°F (-3.5°C) and an average high of 37.6°F (3.1°C). Upon the beginning of February, Summer Lake's high-temperatures register at a still wintry 37.6°F (3.1°C), closely mirroring the preceding month. Weather in February »Weather in March
The first month of the spring, March, is also an icy month in Summer Lake, Oregon, with an average temperature ranging between max 42.4°F (5.8°C) and min 28.9°F (-1.7°C). The advent of March signifies a minor shift to an average high-temperature of a still wintry 42.4°F (5.8°C), aligning closely with February. Weather in March »Weather in April
April in Summer Lake, Oregon, is a cool spring month, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 50.2°F (10.1°C). The shift into April is marked by a modest rise in the average high-temperature, moving from March's wintry 42.4°F (5.8°C) to a cool 50.2°F (10.1°C). Weather in April »Weather in May
May, the last month of the spring in Summer Lake, is a moderate month, with an average temperature ranging between min 39.7°F (4.3°C) and max 59.9°F (15.5°C). May's onset witnesses a shift in the average high-temperature, moving from a fresh 50.2°F (10.1°C) in April to a refreshing 59.9°F (15.5°C). Weather in May »Weather in June
June, the first month of the summer in Summer Lake, is a refreshing month, with an average temperature fluctuating between 45.7°F (7.6°C) and 67.8°F (19.9°C). In Summer Lake, the onset of June comes with a modest high-temperature shift, transitioning from May's mild 59.9°F (15.5°C) to a comfortable 67.8°F (19.9°C). Weather in June »Weather in July
July is a moderately hot summer month in Summer Lake, Oregon, with an average temperature varying between 79.3°F (26.3°C) and 51.8°F (11°C). With average high temperatures of 79.3°F (26.3°C) and lows of 51.8°F (11°C), July is the warmest month. Weather in July »Weather in August
The last month of the summer, August, is another warm month in Summer Lake, Oregon, with an average temperature fluctuating between 52.2°F (11.2°C) and 78.4°F (25.8°C). Summer Lake, Oregon, experiences a recorded average high-temperature of a still moderately hot 78.4°F (25.8°C) in August, closely aligned with July's 79.3°F (26.3°C). Weather in August »Weather in September
September, the first month of the autumn in Summer Lake, is still a pleasant month, with an average temperature varying between 69.8°F (21°C) and 45.9°F (7.7°C). Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a warm 78.4°F (25.8°C) to an agreeable 69.8°F (21°C). Weather in September »Weather in October
October, like September, in Summer Lake, Oregon, is another fresh autumn month, with an average temperature fluctuating between 37°F (2.8°C) and 54.5°F (12.5°C). The beginning of October signals a clear reduction in the average high-temperature, falling from a pleasant 69.8°F (21°C) in September to a fresh 54.5°F (12.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Summer Lake, Oregon, with temperature in the range of an average low of 30°F (-1.1°C) and an average high of 43°F (6.1°C). Stepping into November, Summer Lake observes a temperature decline, with the average high falling from October's fresh 54.5°F (12.5°C) to a frosty 43°F (6.1°C). Weather in November »Weather in December
December, the first month of the winter in Summer Lake, is also an icy month, with an average temperature varying between 23.7°F (-4.6°C) and 34.5°F (1.4°C). In Summer Lake, December is the month with the lowest recorded average temperatures, measuring a high of 34.5°F (1.4°C) and a low of 23.7°F (-4.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Summer Lake, OR
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (34.5°F).
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (23.7°F).
Average pressure
Summer Lake, OR
- Average pressure in January:
30.18"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.98"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.06"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.16"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.97"Hg).
Average wind speed
Summer Lake, OR
- Average wind speed in January:
7.6mph - Average wind speed in February:
7.6mph - Average wind speed in March:
7.7mph - Average wind speed in April:
7.5mph - Average wind speed in May:
7mph - Average wind speed in June:
6.6mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.5mph - Average wind speed in September:
5.7mph - Average wind speed in October:
6.6mph - Average wind speed in November:
7.6mph - Average wind speed in December:
7.5mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Summer Lake, OR
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (45%).
Average rainfall
Summer Lake, OR
- Average rainfall in January:
1.93" - Average rainfall in February:
2.13" - Average rainfall in March:
1.97" - Average rainfall in April:
1.54" - Average rainfall in May:
1.61" - Average rainfall in June:
0.91"
- Average rainfall in July:
0.2" - Average rainfall in August:
0.35" - Average rainfall in September:
0.63" - Average rainfall in October:
1.14" - Average rainfall in November:
1.26" - Average rainfall in December:
2.01"
The wettest month (with the highest rainfall) is February (2.13").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days
Summer Lake, OR
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
10.6 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
9.6 days
- Average rainfall days in July:
3.3 days - Average rainfall days in August:
3.5 days - Average rainfall days in September:
5.4 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
6.6 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall
Summer Lake, OR
- Average snowfall in January:
11.93" - Average snowfall in February:
16.06" - Average snowfall in March:
12.2" - Average snowfall in April:
6.54" - Average snowfall in May:
4.13" - Average snowfall in June:
0.2"
The month with the highest snowfall is February (16.06").
The months with the least snowfall are July and August (0").
Average snowfall days
Summer Lake, OR
- Average snowfall days in January:
15.3 days - Average snowfall days in February:
15.1 days - Average snowfall days in March:
16.4 days - Average snowfall days in April:
9.3 days - Average snowfall days in May:
5.1 days - Average snowfall days in June:
1.2 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0.7 days - Average snowfall days in October:
3.7 days - Average snowfall days in November:
11.4 days - Average snowfall days in December:
16.8 days
The month with the highest number of snowfall days is December (16.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight / Average sunshine
Summer Lake, OR
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
5h and 36min - Average sunshine in February:
5h and 48min - Average sunshine in March:
7h and 54min - Average sunshine in April:
10h and 0min - Average sunshine in May:
11h and 0min - Average sunshine in June:
11h and 30min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
11h and 54min - Average sunshine in September:
11h and 0min - Average sunshine in October:
6h and 48min - Average sunshine in November:
6h and 30min - Average sunshine in December:
5h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days
Summer Lake, OR
- Average sunshine days in January:
14.6 days - Average sunshine days in February:
11.5 days - Average sunshine days in March:
11.1 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
16.1 days - Average sunshine days in June:
18.8 days
- Average sunshine days in July:
25.1 days - Average sunshine days in August:
25 days - Average sunshine days in September:
22 days - Average sunshine days in October:
17.4 days - Average sunshine days in November:
15 days - Average sunshine days in December:
13.2 days
The month with the most sunshine days is July (25.1 days).
The month with the least sunshine days is March (11.1 days).
Average UV index
Summer Lake, OR
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Summer Lake, OR
The months with the most cloud cover are February and December (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility
Summer Lake, OR
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





