Climate and monthly weather forecastGreenwater, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, is another cold winter month in Greenwater, Washington, with temperature in the range of an average low of 31.5°F (-0.3°C) and an average high of 42.1°F (5.6°C). An average high-temperature of a still cold 42.1°F (5.6°C) marks January, exhibiting a close resemblance to the conditions in December. Weather in January »Weather in February
February, the last month of the winter in Greenwater, is also an icy month, with an average temperature fluctuating between 30.6°F (-0.8°C) and 41.9°F (5.5°C). The shift into February reveals an average high-temperature of a still cold 41.9°F (5.5°C), closely mirroring January's climate. Weather in February »Weather in March
March, the first month of the spring in Greenwater, is a frosty month, with an average temperature varying between 46.4°F (8°C) and 32.7°F (0.4°C). The advent of March sees the average high-temperature at a chilly 46.4°F (8°C), subtly shifted from February's 41.9°F (5.5°C). Weather in March »Weather in April
April is a fresh spring month in Greenwater, Washington, with an average temperature fluctuating between 35.4°F (1.9°C) and 52°F (11.1°C). In April, the average high-temperature marginally rises from a frosty 46.4°F (8°C) in March to a fresh 52°F (11.1°C). Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Greenwater, Washington, with an average temperature fluctuating between 60.4°F (15.8°C) and 40.6°F (4.8°C). May's onset witnesses a minor shift in the average high-temperature, moving from a fresh 52°F (11.1°C) in April to a refreshing 60.4°F (15.8°C). Weather in May »Weather in June
The first month of the summer, June, is a refreshing month in Greenwater, Washington, with an average temperature fluctuating between 43.3°F (6.3°C) and 65.8°F (18.8°C). In June, the average high-temperature marginally rises from a moderate 60.4°F (15.8°C) in May to an enjoyable 65.8°F (18.8°C). Weather in June »Weather in July
July is a pleasant summer month in Greenwater, Washington, with an average temperature varying between 47.1°F (8.4°C) and 73°F (22.8°C). The commencement of July sees a minor shift in the average high-temperature, moving from a refreshing 65.8°F (18.8°C) in June to a pleasant 73°F (22.8°C). Weather in July »Weather in August
The last month of the summer, August, is a moderately hot month in Greenwater, Washington, with an average temperature ranging between max 73.9°F (23.3°C) and min 48.9°F (9.4°C). In Greenwater, the peak temperatures are generally noted in August, averaging a high of 73.9°F (23.3°C) and a low of 48.9°F (9.4°C). Weather in August »Weather in September
The first month of the autumn, September, is still a comfortable month in Greenwater, Washington, with temperature in the range of an average high of 67.3°F (19.6°C) and an average low of 45.9°F (7.7°C). Greenwater, Washington, observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 73.9°F (23.3°C) to a comfortable 67.3°F (19.6°C). Weather in September »Weather in October
October, the same as September, in Greenwater, Washington, is another mild autumn month, with an average temperature varying between 56.3°F (13.5°C) and 41.5°F (5.3°C). Stepping into October, Greenwater observes a temperature decline, with the average high falling from September's 67.3°F (19.6°C) to a still refreshing 56.3°F (13.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Greenwater, Washington, with an average temperature varying between 45.9°F (7.7°C) and 36°F (2.2°C). In Greenwater, the average high-temperature in November drops from a mild 56.3°F (13.5°C) in October to a chilly 45.9°F (7.7°C). Weather in November »Weather in December
December, the first month of the winter in Greenwater, is also an icy month, with an average temperature varying between 39.9°F (4.4°C) and 30.2°F (-1°C). December tends to be the coldest month, with temperatures averaging a daily high of 39.9°F (4.4°C) and a low of 30.2°F (-1°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Greenwater, WA
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is December (39.9°F).
The month with the highest average low temperature is August (48.9°F).
The coldest month (with the lowest average low temperature) is December (30.2°F).
Average pressure
Greenwater, WA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.04"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed
Greenwater, WA
- Average wind speed in January:
5.3mph - Average wind speed in February:
4.9mph - Average wind speed in March:
4.8mph - Average wind speed in April:
4.2mph - Average wind speed in May:
3.9mph - Average wind speed in June:
3.7mph
- Average wind speed in July:
3.7mph - Average wind speed in August:
3.6mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.3mph - Average wind speed in November:
4.9mph - Average wind speed in December:
4.9mph
The windiest month (with the highest average wind speed) is January (5.3mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity
Greenwater, WA
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall
Greenwater, WA
- Average rainfall in January:
5.71" - Average rainfall in February:
4.06" - Average rainfall in March:
4.33" - Average rainfall in April:
3.15" - Average rainfall in May:
2.24" - Average rainfall in June:
1.65"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.71" - Average rainfall in September:
1.97" - Average rainfall in October:
4.25" - Average rainfall in November:
4.57" - Average rainfall in December:
5.59"
The wettest month (with the highest rainfall) is January (5.71").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days
Greenwater, WA
- Average rainfall days in January:
17.5 days - Average rainfall days in February:
16.5 days - Average rainfall days in March:
20.4 days - Average rainfall days in April:
18.4 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
13.6 days
- Average rainfall days in July:
7.5 days - Average rainfall days in August:
6.8 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
16.4 days - Average rainfall days in November:
19.5 days - Average rainfall days in December:
17.6 days
The month with the highest number of rainy days is March (20.4 days).
The month with the least rainy days is August (6.8 days).
Average snowfall
Greenwater, WA
The month with the highest snowfall is February (4.76").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Greenwater, WA
- Average snowfall days in January:
3.6 days - Average snowfall days in February:
5.9 days - Average snowfall days in March:
4.1 days - Average snowfall days in April:
1.5 days - Average snowfall days in May:
0.1 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:
1.4 days - Average snowfall days in December:
4.1 days
The month with the highest number of snowfall days is February (5.9 days).
The months with the least snowfall days are June, July, August and October (0 days).
Average daylight / Average sunshine
Greenwater, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 54min
- Average daylight in July:
15h and 30min - Average daylight in August:
14h and 12min - 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 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 6min - Average sunshine in March:
5h and 30min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 30min - Average sunshine in June:
8h and 54min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 18min - Average sunshine in December:
3h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days
Greenwater, WA
- Average sunshine days in January:
11.3 days - Average sunshine days in February:
8.8 days - Average sunshine days in March:
9 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
14 days - Average sunshine days in June:
14.5 days
- Average sunshine days in July:
21.9 days - Average sunshine days in August:
22.1 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
9 days - Average sunshine days in December:
10.8 days
The month with the most sunshine days is August (22.1 days).
The month with the least sunshine days is February (8.8 days).
Average UV index
Greenwater, WA
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is November (UV index 1).
Average cloud cover
Greenwater, WA
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility
Greenwater, WA
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).





