Climate and monthly weather forecastDes Moines, WA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Des Moines, Washington, is a frosty winter month, with an average temperature ranging between max 44.6°F (7°C) and min 35.2°F (1.8°C). Des Moines's average high-temperature marks a still chilly 44.6°F (7°C) with the advent of January, closely mirroring that of the preceding month. Weather in January »Weather in February
The last month of the winter, February, is also a frosty month in Des Moines, Washington, with an average temperature ranging between max 46°F (7.8°C) and min 34.9°F (1.6°C). With the onset of February, a modest change to a still frosty 46°F (7.8°C) from January's 44.6°F (7°C) is noted in high-temperature. Weather in February »Weather in March
The first month of the spring, March, is a cool month in Des Moines, Washington, with an average temperature fluctuating between 51.1°F (10.6°C) and 37.2°F (2.9°C). Des Moines's average high-temperature in March is a cool 51.1°F (10.6°C), indicating a subtle variation from February. Weather in March »Weather in April
April in Des Moines, Washington, is a moderate spring month, with an average temperature varying between 56.7°F (13.7°C) and 39.7°F (4.3°C). April's arrival signals a modest temperature shift, moving from a fresh 51.1°F (10.6°C) in March to a moderate 56.7°F (13.7°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Des Moines, Washington, with an average temperature ranging between min 44.4°F (6.9°C) and max 65.3°F (18.5°C). The shift into May is accompanied by a modest temperature increase, with the average high-temperature edging up from a refreshing 56.7°F (13.7°C) in April to an enjoyable 65.3°F (18.5°C). Weather in May »Weather in June
June, the first month of the summer in Des Moines, is a pleasant month, with an average temperature ranging between max 70°F (21.1°C) and min 48°F (8.9°C). The introduction of June sees an average high-temperature of an agreeable 70°F (21.1°C), hardly deviating from May. Weather in June »Weather in July
July is a warm summer month in Des Moines, Washington, with an average temperature varying between 77.2°F (25.1°C) and 52.5°F (11.4°C). July's arrival signals a subtle increase in average high-temperatures, moving from June's agreeable 70°F (21.1°C) to a moderately hot 77.2°F (25.1°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Des Moines, Washington, with an average temperature fluctuating between 77.7°F (25.4°C) and 53.6°F (12°C). Des Moines's August weather, with an average high temperature of 77.7°F (25.4°C) and an average low temperature of 53.6°F (12°C), tends to be the warmest of the year. Weather in August »Weather in September
September, the first month of the autumn in Des Moines, is still a pleasant month, with an average temperature ranging between min 50.4°F (10.2°C) and max 70.3°F (21.3°C). September reveals a small adjustment in temperature, transitioning from an average high of a moderately hot 77.7°F (25.4°C) in August to an agreeable 70.3°F (21.3°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Des Moines, Washington, with temperature in the range of an average high of 59°F (15°C) and an average low of 44.8°F (7.1°C). October shows a mild decline in the average high-temperature, falling from September's agreeable 70.3°F (21.3°C) to a refreshing 59°F (15°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Des Moines, Washington, with temperature in the range of an average low of 39°F (3.9°C) and an average high of 49.1°F (9.5°C). The commencement of November indicates a shift in the average high-temperature, receding from October's mild 59°F (15°C) to a frosty 49.1°F (9.5°C). Weather in November »Weather in December
December, the first month of the winter in Des Moines, is still a chilly month, with an average temperature ranging between max 43.5°F (6.4°C) and min 34.3°F (1.3°C). December, recording an average high temperature of 43.5°F (6.4°C) and a low temperature of 34.3°F (1.3°C), is Des Moines's coldest month. Weather in December »Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January and December, with an average relative humidity of 85%, are most humid months in Des Moines.
In Des Moines, Washington, during the entire year, the rain falls for 138.2 days and collects up to 14.09" (358mm) of precipitation.
January through March, November and December are months with snowfall in Des Moines.
In Des Moines, during the entire year, snow falls for 9.8 days and aggregates up to 4.72" (120mm) of snow.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Des Moines, Washington.
The month with the most snowfall is February, when snow falls for 3.4 days and typically aggregates up to 2.52" (64mm) of snow.
The months with the coldest seawater in Des Moines are February and April, with an average ocean temperature of 45.9°F (7.7°C).
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Des Moines, Washington, 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.
April through October are months without snowfall in Des Moines.
The month with the longest days is June, with an average of 15h and 54min of daylight.
The months with the highest UV index in Des Moines are June through August, with an average maximum UV index of 5.
July is the least humid month in Des Moines, with an average relative humidity of 68%.
July is the month with the least rainfall in Des Moines. Rain falls for 6.3 days and accumulates 0.31" (8mm) of precipitation.
In Des Moines, August registers the highest temperatures, averaging 77.7°F (25.4°C) at the peak and 53.6°F (12°C) at the lowest.
August is the month with the warmest seawater, with an average ocean temperature of 53.8°F (12.1°C).
August has the most sunshine of the year in Des Moines, with an average of 10.7h of sunshine.
The month of December sees the average lowest temperatures, reaching 43.5°F (6.4°C) at the peak and 34.3°F (1.3°C) at the low.
The month with the most rainfall in Des Moines, Washington, is December, when the rain falls for 13.5 days and typically aggregates up to 2.2" (56mm) of precipitation.
The month with the shortest days is December, with an average of 8h and 30min of daylight.
With an average of 4.1h of sunshine, December has the least sunshine of the year in Des Moines.
Average temperature
Des Moines, WA
The warmest month (with the highest average high temperature) is August (77.7°F).
The month with the lowest average high temperature is December (43.5°F).
The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.3°F).
Average pressure
Des Moines, WA
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.05"Hg - Average pressure in May:
30.02"Hg - Average pressure in June:
30.02"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:
30.04"Hg - Average pressure in November:
30.04"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).
Average wind speed
Des Moines, WA
- Average wind speed in January:
5.2mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.3mph - Average wind speed in April:
4.8mph - Average wind speed in May:
4.1mph - Average wind speed in June:
4mph
- Average wind speed in July:
3.6mph - Average wind speed in August:
3.6mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.5mph - Average wind speed in November:
5mph - Average wind speed in December:
4.8mph
The windiest month (with the highest average wind speed) is March (5.3mph).
The calmest months (with the lowest average wind speed) are July and August (3.6mph).
Average humidity
Des Moines, WA
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (68%).
Average rainfall
Des Moines, WA
- Average rainfall in January:
1.54" - Average rainfall in February:
1.3" - Average rainfall in March:
1.22" - Average rainfall in April:
1.22" - Average rainfall in May:
1.06" - Average rainfall in June:
0.79"
- Average rainfall in July:
0.31" - Average rainfall in August:
0.47" - Average rainfall in September:
0.91" - Average rainfall in October:
1.42" - Average rainfall in November:
1.65" - Average rainfall in December:
2.2"
The wettest month (with the highest rainfall) is December (2.2").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days
Des Moines, WA
- Average rainfall days in January:
12.3 days - Average rainfall days in February:
11.4 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
12.3 days - Average rainfall days in June:
10.5 days
- Average rainfall days in July:
6.3 days - Average rainfall days in August:
5.7 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
14.2 days - Average rainfall days in December:
13.5 days
The month with the highest number of rainy days is April (14.9 days).
The month with the least rainy days is August (5.7 days).
Average snowfall
Des Moines, WA
The month with the highest snowfall is February (2.52").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Des Moines, WA
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
3.4 days - Average snowfall days in March:
1.8 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:
0.7 days - Average snowfall days in December:
1.6 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 sea temperature
Des Moines, WA
The best month for swimming (with the highest average sea temperature) is August (53.7°F).
The coldest month (with the lowest average sea temperature) is February (45.8°F).
Average daylight / Average sunshine
Des Moines, 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 42min - 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 48min - Average daylight in November:
9h and 18min - Average daylight in December:
8h and 30min
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 30min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 12min - Average sunshine in April:
7h and 54min - Average sunshine in May:
9h and 0min - Average sunshine in June:
9h and 18min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 42min - Average sunshine in September:
9h and 12min - Average sunshine in October:
5h and 36min - Average sunshine in November:
4h and 30min - Average sunshine in December:
4h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days
Des Moines, WA
- Average sunshine days in January:
15.6 days - Average sunshine days in February:
13 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
15.8 days - Average sunshine days in June:
17.1 days
- Average sunshine days in July:
22.6 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
16.7 days - Average sunshine days in November:
13.9 days - Average sunshine days in December:
14.2 days
The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (13 days).
Average UV index
Des Moines, WA
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Des Moines, WA
The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility
Des Moines, WA
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
