Climate and monthly weather forecastSummitview, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Summitview, Washington, with an average temperature fluctuating between 37.6°F (3.1°C) and 26.6°F (-3°C). The arrival of January sees a recorded average high-temperature of a still cold 37.6°F (3.1°C), showing little divergence from the previous month's conditions. Weather in January »Weather in February
February, the last month of the winter in Summitview, is also an icy month, with an average temperature ranging between min 28.9°F (-1.7°C) and max 41.5°F (5.3°C). As Summitview transitions from January to February, the average high-temperatures adjust to a still cold 41.5°F (5.3°C), nearly the same as the previous 37.6°F (3.1°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Summitview, Washington, with an average temperature fluctuating between 34.7°F (1.5°C) and 49.5°F (9.7°C). March's arrival coincides with a marginal rise in the average high-temperature, moving from February's wintry 41.5°F (5.3°C) to a chilly 49.5°F (9.7°C). Weather in March »Weather in April
April is a mild spring month in Summitview, Washington, with an average temperature varying between 40.1°F (4.5°C) and 59.2°F (15.1°C). An increase in the average high-temperature marks April, moving from March's chilly 49.5°F (9.7°C) to a moderate 59.2°F (15.1°C). Weather in April »Weather in May
May, the last month of the spring in Summitview, is a pleasant month, with an average temperature ranging between max 69.3°F (20.7°C) and min 47.5°F (8.6°C). As Summitview welcomes May, the average high-temperature sees a rise, transitioning from a mild 59.2°F (15.1°C) in April to an agreeable 69.3°F (20.7°C). Weather in May »Weather in June
June, the first month of the summer in Summitview, is a moderately hot month, with an average temperature fluctuating between 52.3°F (11.3°C) and 76.5°F (24.7°C). June's arrival brings a modest temperature shift, moving from a pleasant 69.3°F (20.7°C) in May to a moderately hot 76.5°F (24.7°C). Weather in June »Weather in July
July in Summitview, Washington, is a hot summer month, with an average temperature varying between 86.2°F (30.1°C) and 59.2°F (15.1°C). Summitview's transition into July sees a rise in the average high-temperature, advancing from a warm 76.5°F (24.7°C) in June to a hot 86.2°F (30.1°C). Weather in July »Weather in August
The last month of the summer, August, is another tropical month in Summitview, Washington, with an average temperature varying between 60.3°F (15.7°C) and 86.5°F (30.3°C). August is Summitview's warmest month, registering average high temperatures of 86.5°F (30.3°C) and lows of 60.3°F (15.7°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Summitview, Washington, with an average temperature ranging between max 74.8°F (23.8°C) and min 53.4°F (11.9°C). Summitview's September weather shows a moderate shift in high-temperatures, falling from August's hot 86.5°F (30.3°C) to a moderately hot 74.8°F (23.8°C). Weather in September »Weather in October
October, the same as September, in Summitview, Washington, is a moderate autumn month, with an average temperature ranging between min 42.6°F (5.9°C) and max 60.1°F (15.6°C). The average high-temperature exhibits a considerable decrease in October, dropping from a warm 74.8°F (23.8°C) in September to a mild 60.1°F (15.6°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Summitview, Washington, with temperature in the range of an average low of 32.7°F (0.4°C) and an average high of 46.8°F (8.2°C). Summitview's November weather comes with a decrease in average high-temperatures, moving from a moderate 60.1°F (15.6°C) in October to a frosty 46.8°F (8.2°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Summitview, Washington, with an average temperature varying between 36.9°F (2.7°C) and 25.5°F (-3.6°C). In Summitview, the lowest average temperatures are observed in December, with a high of 36.9°F (2.7°C) and a low of 25.5°F (-3.6°C). Weather in December »Updated: Feb 14, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the most humid month, with an average relative humidity of 81%.
January is the month with the most rainfall. Rain falls for 10.3 days and accumulates 0.87" (22mm) of precipitation.
Throughout the year, in Summitview, Washington, there are 82.2 rainfall days, and 5.43" (138mm) of precipitation is accumulated.
Months with snowfall in Summitview are January through March, September, November and December.
Throughout the year, there are 18.5 snowfall days, and 7.8" (198mm) of snow is accumulated.
The month with the least sunshine in Summitview is January, with an average of 5.6h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Summitview.
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 Summitview, snow does not fall in April through August and October.
The month with the longest days is June, with an average of 15h and 48min of daylight.
July and August, with an average relative humidity of 39%, are the least humid months in Summitview, Washington.
The month with the least rainfall in Summitview is July, when the rain falls for 2.1 days and typically collects 0.08" (2mm) of precipitation.
July and August, with an average of 12.1h of sunshine, are months with the most sunshine.
The month with the highest UV index in Summitview is July, with an average maximum UV index of 7.
August is the warmest month in Summitview, with the temperature often reaching an average high of 86.5°F (30.3°C) and an average low of 60.3°F (15.7°C).
Summitview's coldest month, December, registers temperatures that range from a high of 36.9°F (2.7°C) to a low of 25.5°F (-3.6°C).
The month with the most snowfall is December, when snow falls for 5.4 days and typically aggregates up to 2.76" (70mm) of snow.
December has the shortest days of the year, with an average of 8h and 36min of daylight.
Average temperature
Summitview, WA
The warmest month (with the highest average high temperature) is August (86.5°F).
The month with the lowest average high temperature is December (36.9°F).
The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure
Summitview, WA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.01"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.93"Hg).
Average wind speed
Summitview, WA
- Average wind speed in January:
4.5mph - Average wind speed in February:
4.9mph - Average wind speed in March:
5.9mph - Average wind speed in April:
6.8mph - Average wind speed in May:
6.8mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.5mph - Average wind speed in September:
6mph - Average wind speed in October:
5.3mph - Average wind speed in November:
5mph - Average wind speed in December:
4.4mph
The windiest month (with the highest average wind speed) is June (7.1mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity
Summitview, WA
The month with the highest relative humidity is January (81%).
The months with the lowest relative humidity are July and August (39%).
Average rainfall
Summitview, WA
- Average rainfall in January:
0.87" - Average rainfall in February:
0.59" - Average rainfall in March:
0.63" - Average rainfall in April:
0.31" - Average rainfall in May:
0.63" - Average rainfall in June:
0.24"
- Average rainfall in July:
0.08" - Average rainfall in August:
0.16" - Average rainfall in September:
0.24" - Average rainfall in October:
0.43" - Average rainfall in November:
0.43" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is January (0.87").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days
Summitview, WA
- Average rainfall days in January:
10.3 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
10.8 days - Average rainfall days in April:
7.8 days - Average rainfall days in May:
6.8 days - Average rainfall days in June:
4.8 days
- Average rainfall days in July:
2.1 days - Average rainfall days in August:
2 days - Average rainfall days in September:
3.9 days - Average rainfall days in October:
8 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
9.1 days
The month with the highest number of rainy days is March (10.8 days).
The month with the least rainy days is August (2 days).
Average snowfall
Summitview, WA
The month with the highest snowfall is December (2.76").
The months with the least snowfall are April, May, June, July, August and October (0").
Average snowfall days
Summitview, WA
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
4.3 days - Average snowfall days in March:
2.1 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:
0.1 days - Average snowfall days in October:
0 days - Average snowfall days in November:
2 days - Average snowfall days in December:
5.4 days
The month with the highest number of snowfall days is December (5.4 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight / Average sunshine
Summitview, WA
- 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 48min
- Average daylight in July:
15h and 24min - 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 24min - Average daylight in December:
8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
5h and 36min - Average sunshine in February:
6h and 12min - Average sunshine in March:
8h and 30min - Average sunshine in April:
11h and 0min - Average sunshine in May:
11h and 24min - Average sunshine in June:
11h and 54min
- Average sunshine in July:
12h and 6min - Average sunshine in August:
12h and 6min - Average sunshine in September:
11h and 6min - Average sunshine in October:
7h and 6min - Average sunshine in November:
6h and 48min - Average sunshine in December:
5h and 54min
The months with the most sunshine are July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days
Summitview, WA
- Average sunshine days in January:
17 days - Average sunshine days in February:
15.8 days - Average sunshine days in March:
16.4 days - Average sunshine days in April:
18.8 days - Average sunshine days in May:
21.2 days - Average sunshine days in June:
23 days
- Average sunshine days in July:
27.5 days - Average sunshine days in August:
27.4 days - Average sunshine days in September:
23.8 days - Average sunshine days in October:
20 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
17.3 days
The month with the most sunshine days is July (27.5 days).
The month with the least sunshine days is February (15.8 days).
Average UV index
Summitview, WA
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Summitview, WA
The month with the most cloud cover is January (Cloud cover 40).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility
Summitview, WA
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
