Climate and monthly weather forecastDulwich, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Dulwich, Washington, is a freezing cold winter month, with an average temperature ranging between max 29.8°F (-1.2°C) and min 16.2°F (-8.8°C). The shift from December to January is characterized by an average high-temperature of a still subzero cold 29.8°F (-1.2°C), not significantly different from the 28.9°F (-1.7°C) of December. Weather in January »Weather in February
February, the last month of the winter in Dulwich, is a cold month, with temperature in the range of an average low of 16°F (-8.9°C) and an average high of 32°F (0°C). During February, Dulwich observes a subtle ascent to a cold 32°F (0°C) from January's 29.8°F (-1.2°C) in the average high-temperature. Weather in February »Weather in March
March, the first month of the spring in Dulwich, is also a wintry month, with an average temperature varying between 39.9°F (4.4°C) and 24.6°F (-4.1°C). March's arrival sees a mild rise in the average high-temperature, transitioning from February's icy 32°F (0°C) to a still wintry 39.9°F (4.4°C). Weather in March »Weather in April
April in Dulwich, Washington, is a cool spring month, with temperature in the range of an average high of 51.6°F (10.9°C) and an average low of 30.6°F (-0.8°C). In April, the average high-temperature increases from a wintry 39.9°F (4.4°C) in March to a cool 51.6°F (10.9°C). Weather in April »Weather in May
May, the last month of the spring in Dulwich, is an enjoyable month, with an average temperature varying between 38.1°F (3.4°C) and 64°F (17.8°C). The arrival of May brings an increase in high-temperatures, moving from a fresh 51.6°F (10.9°C) in April to an enjoyable 64°F (17.8°C). Weather in May »Weather in June
The first month of the summer, June, is an agreeable month in Dulwich, Washington, with temperature in the range of an average high of 70.2°F (21.2°C) and an average low of 43.2°F (6.2°C). June's arrival coincides with a subtle temperature rise, moving from May's comfortable 64°F (17.8°C) to an agreeable 70.2°F (21.2°C). Weather in June »Weather in July
July is a moderately hot summer month in Dulwich, Washington, with an average temperature ranging between min 49.6°F (9.8°C) and max 80.6°F (27°C). The arrival of July brings an increase in high-temperatures, moving from a pleasant 70.2°F (21.2°C) in June to a warm 80.6°F (27°C). Weather in July »Weather in August
August, the last month of the summer in Dulwich, is another warm month, with an average temperature varying between 81.1°F (27.3°C) and 50.5°F (10.3°C). In Dulwich, August records the highest average temperatures, peaking at 81.1°F (27.3°C) and reaching a low of 50.5°F (10.3°C). For most parts of August, the heat index is computed to be 82.4°F (28°C). Weather in August »Weather in September
The first month of the autumn, September, is also an agreeable month in Dulwich, Washington, with an average temperature ranging between max 69.8°F (21°C) and min 42.8°F (6°C). As September commences, the average high-temperature shows a reduction, transitioning from a moderately hot 81.1°F (27.3°C) in August to a pleasant 69.8°F (21°C). Weather in September »Weather in October
October, like September, in Dulwich, Washington, is a cool autumn month, with an average temperature ranging between max 52.7°F (11.5°C) and min 33.4°F (0.8°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 52.7°F (11.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Dulwich, Washington, with an average temperature fluctuating between 37.6°F (3.1°C) and 24.8°F (-4°C). The start of November brings a distinct shift in the average high-temperature, dropping from October's fresh 52.7°F (11.5°C) to a cold 37.6°F (3.1°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Dulwich, Washington, with an average temperature fluctuating between 28.9°F (-1.7°C) and 16.9°F (-8.4°C). The coldest period tends to be December, when average temperatures fluctuate between a high of 28.9°F (-1.7°C) and a low of 16.9°F (-8.4°C). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Dulwich, WA
The warmest month (with the highest average high temperature) is August (81.1°F).
The month with the lowest average high temperature is December (28.9°F).
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is February (16°F).
Average pressure
Dulwich, WA
- Average pressure in January:
30.19"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.97"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed
Dulwich, WA
- Average wind speed in January:
3mph - Average wind speed in February:
3mph - Average wind speed in March:
3.6mph - Average wind speed in April:
3.9mph - Average wind speed in May:
3.7mph - Average wind speed in June:
3.6mph
- Average wind speed in July:
3.5mph - Average wind speed in August:
3.4mph - Average wind speed in September:
3.4mph - Average wind speed in October:
3.3mph - Average wind speed in November:
3.3mph - Average wind speed in December:
3mph
The windiest month (with the highest average wind speed) is April (3.9mph).
The calmest months (with the lowest average wind speed) are January, February and December (3mph).
Average humidity
Dulwich, WA
The month with the highest relative humidity is January (94%).
The month with the lowest relative humidity is August (50%).
Average rainfall
Dulwich, WA
- Average rainfall in January:
1.54" - Average rainfall in February:
1.14" - Average rainfall in March:
1.81" - Average rainfall in April:
1.46" - Average rainfall in May:
1.93" - Average rainfall in June:
1.73"
- Average rainfall in July:
0.67" - Average rainfall in August:
0.39" - Average rainfall in September:
1.02" - Average rainfall in October:
1.26" - Average rainfall in November:
1.61" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days
Dulwich, WA
- Average rainfall days in January:
13.3 days - Average rainfall days in February:
10.9 days - Average rainfall days in March:
18.4 days - Average rainfall days in April:
17.8 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
8.3 days - Average rainfall days in August:
6.1 days - Average rainfall days in September:
10.2 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
15.6 days - Average rainfall days in December:
11.7 days
The month with the highest number of rainy days is March (18.4 days).
The month with the least rainy days is August (6.1 days).
Average snowfall
Dulwich, WA
The month with the highest snowfall is January (6.61").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days
Dulwich, WA
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
11.8 days - Average snowfall days in March:
7.1 days - Average snowfall days in April:
1.8 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:
0.3 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
6.4 days - Average snowfall days in December:
13.7 days
The month with the highest number of snowfall days is December (13.7 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Dulwich, 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 18min
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 18min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 54min - Average sunshine in April:
9h and 30min - Average sunshine in May:
10h and 42min - Average sunshine in June:
10h and 42min
- Average sunshine in July:
11h and 36min - Average sunshine in August:
12h and 0min - Average sunshine in September:
10h and 12min - Average sunshine in October:
6h and 24min - Average sunshine in November:
4h and 48min - Average sunshine in December:
4h and 18min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Dulwich, WA
- Average sunshine days in January:
11.9 days - Average sunshine days in February:
10.2 days - Average sunshine days in March:
9 days - Average sunshine days in April:
9.3 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
20 days - Average sunshine days in August:
20.8 days - Average sunshine days in September:
17.6 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
10.3 days - Average sunshine days in December:
12.3 days
The month with the most sunshine days is August (20.8 days).
The month with the least sunshine days is March (9 days).
Average UV index
Dulwich, WA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Dulwich, WA
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility
Dulwich, WA
The months with the highest visibility are May, June, July, August and September (6mi).
The month with the lowest visibility is January (2mi).





