Climate and monthly weather forecastSudden Valley, WA
Climate and monthly weather forecast
Weather in January
January in Sudden Valley, Washington, is a chilly winter month, with an average temperature ranging between max 42.8°F (6°C) and min 34.9°F (1.6°C). Sudden Valley's January reports an average high-temperature of a frosty 42.8°F (6°C), exhibiting a minor difference from December. Weather in January »Weather in February
February, the last month of the winter in Sudden Valley, is also a frosty month, with an average temperature fluctuating between 43.5°F (6.4°C) and 34.3°F (1.3°C). Sudden Valley starts February with an average high-temperature of a still frosty 43.5°F (6.4°C), a minor shift from January's 42.8°F (6°C). Weather in February »Weather in March
The first month of the spring, March, is also a frosty month in Sudden Valley, Washington, with an average temperature fluctuating between 37°F (2.8°C) and 48°F (8.9°C). The transition into March is marked with an average high-temperature of a still chilly 48°F (8.9°C), showing an insignificant shift from February's 43.5°F (6.4°C). Weather in March »Weather in April
April in Sudden Valley, Washington, is a cool spring month, with an average temperature varying between 53.8°F (12.1°C) and 40.1°F (4.5°C). The arrival of April signals a slight increase in the average high-temperature, moving from a chilly 48°F (8.9°C) in March to a cool 53.8°F (12.1°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Sudden Valley, Washington, with an average temperature ranging between min 44.6°F (7°C) and max 61.5°F (16.4°C). May marks a minor ascent in the average high-temperature, adjusting from April's fresh 53.8°F (12.1°C) to a refreshing 61.5°F (16.4°C). Weather in May »Weather in June
The first month of the summer, June, is also an enjoyable month in Sudden Valley, Washington, with temperature in the range of an average low of 47.8°F (8.8°C) and an average high of 65.1°F (18.4°C). Entering June, the average high-temperature is recorded at a still enjoyable 65.1°F (18.4°C), exhibiting a minimal shift from May's 61.5°F (16.4°C). Weather in June »Weather in July
July is an agreeable summer month in Sudden Valley, Washington, with temperature in the range of an average low of 51.4°F (10.8°C) and an average high of 70.5°F (21.4°C). In Sudden Valley, the average high-temperature in July slightly increases from a comfortable 65.1°F (18.4°C) in June to a pleasant 70.5°F (21.4°C). Weather in July »Weather in August
The last month of the summer, August, is also an agreeable month in Sudden Valley, Washington, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 52.7°F (11.5°C). August, noted for its average high-temperature of 71.1°F (21.7°C) and an average low-temperature of 52.7°F (11.5°C), is considered the warmest month. Weather in August »Weather in September
September, the first month of the autumn in Sudden Valley, is still a refreshing month, with an average temperature varying between 65.3°F (18.5°C) and 49.5°F (9.7°C). With the commencement of September, Sudden Valley records a moderate temperature decline, with the average high easing from August's agreeable 71.1°F (21.7°C) to an enjoyable 65.3°F (18.5°C). Weather in September »Weather in October
October, the same as September, in Sudden Valley, Washington, is a moderate autumn month, with an average temperature ranging between min 44.8°F (7.1°C) and max 55.9°F (13.3°C). October brings a minor decrease, with the average high-temperature reducing from an enjoyable 65.3°F (18.5°C) in September to a moderate 55.9°F (13.3°C). Weather in October »Weather in November
November, the last month of the autumn in Sudden Valley, is also a frosty month, with an average temperature fluctuating between 39.2°F (4°C) and 46.9°F (8.3°C). In Sudden Valley, the average high-temperature in November decreases from a moderate 55.9°F (13.3°C) in October to a frosty 46.9°F (8.3°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Sudden Valley, Washington, with an average temperature ranging between min 34.3°F (1.3°C) and max 41.7°F (5.4°C). The coldest time of the year is December, with temperatures averaging a high of 41.7°F (5.4°C) and a low of 34.3°F (1.3°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Sudden Valley, WA
The warmest month (with the highest average high temperature) is August (71.1°F).
The month with the lowest average high temperature is December (41.7°F).
The month with the highest average low temperature is August (52.7°F).
The coldest months (with the lowest average low temperature) are February and December (34.3°F).
Average pressure
Sudden Valley, WA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30"Hg - Average pressure in April:
30.03"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.07"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30"Hg).
Average wind speed
Sudden Valley, WA
- Average wind speed in January:
5.7mph - Average wind speed in February:
5.5mph - Average wind speed in March:
5.6mph - Average wind speed in April:
5mph - Average wind speed in May:
4mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
3.9mph - Average wind speed in August:
3.5mph - Average wind speed in September:
3.8mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5.8mph - Average wind speed in December:
5.8mph
The windiest months (with the highest average wind speed) are November and December (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity
Sudden Valley, WA
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (74%).
Average rainfall
Sudden Valley, WA
- Average rainfall in January:
1.1" - Average rainfall in February:
0.67" - Average rainfall in March:
0.59" - Average rainfall in April:
0.51" - Average rainfall in May:
0.39" - Average rainfall in June:
0.31"
The wettest month (with the highest rainfall) is January (1.1").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days
Sudden Valley, WA
- Average rainfall days in January:
11.5 days - Average rainfall days in February:
9.5 days - Average rainfall days in March:
12.9 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
6.5 days - Average rainfall days in June:
6.1 days
- Average rainfall days in July:
4 days - Average rainfall days in August:
3.1 days - Average rainfall days in September:
5.8 days - Average rainfall days in October:
9.4 days - Average rainfall days in November:
13.6 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is November (13.6 days).
The month with the least rainy days is August (3.1 days).
Average snowfall
Sudden Valley, WA
The month with the highest snowfall is February (0.63").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Sudden Valley, WA
- Average snowfall days in January:
2.2 days - Average snowfall days in February:
3.4 days - Average snowfall days in March:
2.1 days - Average snowfall days in April:
0.4 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:
0.8 days - Average snowfall days in December:
2 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
Sudden Valley, WA
- Average daylight in January:
8h and 48min - Average daylight in February:
10h and 12min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 42min - Average daylight in May:
15h and 18min - Average daylight in June:
16h and 6min
- Average daylight in July:
15h and 42min - Average daylight in August:
14h and 18min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 48min - Average daylight in November:
9h and 12min - Average daylight in December:
8h and 24min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 18min - Average sunshine in March:
5h and 54min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 18min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 36min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 36min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days
Sudden Valley, WA
- Average sunshine days in January:
13.7 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
11.7 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
17.8 days - Average sunshine days in June:
17.4 days
- Average sunshine days in July:
24.3 days - Average sunshine days in August:
24.9 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
17.2 days - Average sunshine days in November:
11.3 days - Average sunshine days in December:
14 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is November (11.3 days).
Average UV index
Sudden Valley, WA
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Sudden Valley, WA
The months with the most cloud cover are January, February, March and December (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility
Sudden Valley, WA
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).





