Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January is a frosty winter month in Grand Mound, Washington, with an average temperature varying between 44.8°F (7.1°C) and 34.2°F (1.2°C). As January unfolds, the average high-temperature reaches a chilly 44.8°F (7.1°C), hinting at a slight fluctuation from the previous month. Weather in January »
Weather in February
February, the last month of the winter in Grand Mound, is also a frosty month, with an average temperature ranging between max 46.2°F (7.9°C) and min 33.4°F (0.8°C). Grand Mound's weather, upon February's arrival, documents an average high-temperature of a still frosty 46.2°F (7.9°C), nearly identical to the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Grand Mound, Washington, with an average temperature fluctuating between 35.2°F (1.8°C) and 50.5°F (10.3°C). The weather during March records an average high-temperature of a fresh 50.5°F (10.3°C), closely mirroring the preceding month. Weather in March »
Weather in April
April in Grand Mound, Washington, is a refreshing spring month, with an average temperature ranging between max 56.7°F (13.7°C) and min 37.4°F (3°C). The onset of April introduces a subtle rise in the average high-temperature, nudging from a cool 50.5°F (10.3°C) in March to a refreshing 56.7°F (13.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a comfortable month in Grand Mound, Washington, with an average temperature fluctuating between 41.2°F (5.1°C) and 64.9°F (18.3°C). As Grand Mound welcomes May, the average high-temperature displays a subtle shift, adjusting from a refreshing 56.7°F (13.7°C) in April to an enjoyable 64.9°F (18.3°C). Weather in May »
Weather in June
June, the first month of the summer in Grand Mound, is a pleasant month, with an average temperature fluctuating between 69.8°F (21°C) and 45°F (7.2°C). The advent of June signifies a minor shift to an average high-temperature of a pleasant 69.8°F (21°C), aligning closely with May. Weather in June »
Weather in July
July is a moderately hot summer month in Grand Mound, Washington, with temperature in the range of an average low of 48.6°F (9.2°C) and an average high of 76.6°F (24.8°C). With the onset of July, Grand Mound's average high-temperature sees a modest rise, moving from June's agreeable 69.8°F (21°C) to a warm 76.6°F (24.8°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Grand Mound, Washington, with an average temperature fluctuating between 49.8°F (9.9°C) and 77.4°F (25.2°C). The temperatures reach their highest averages in August, with highs of 77.4°F (25.2°C) and lows of 49.8°F (9.9°C). Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in Grand Mound, Washington, with an average temperature ranging between max 70.2°F (21.2°C) and min 47.3°F (8.5°C). September signifies a gentle decline in Grand Mound's average high-temperature, easing from a moderately hot 77.4°F (25.2°C) in August to an agreeable 70.2°F (21.2°C). Weather in September »
Weather in October
October, the same as September, in Grand Mound, Washington, is a moderate autumn month, with an average temperature fluctuating between 58.6°F (14.8°C) and 42.1°F (5.6°C). Grand Mound's transition into October involves a shift in temperature, receding from a pleasant 70.2°F (21.2°C) in September to a moderate 58.6°F (14.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Grand Mound, is also a frosty month, with temperature in the range of an average high of 48.4°F (9.1°C) and an average low of 37.9°F (3.3°C). With the beginning of November, the average high-temperature shows a decrease, transitioning from a refreshing 58.6°F (14.8°C) in October to a chilly 48.4°F (9.1°C). Weather in November »
Weather in December
December, the first month of the winter in Grand Mound, is also an icy month, with temperature in the range of an average high of 42.6°F (5.9°C) and an average low of 33.1°F (0.6°C). Grand Mound's December weather, with an average high temperature of 42.6°F (5.9°C) and an average low temperature of 33.1°F (0.6°C), tends to be the coldest of the year. Weather in December »
[Resources]Frequently asked questions
What is the rainiest month in Grand Mound?
January is the month with the most rainfall in Grand Mound, Washington. Rain falls for 17.8 days and accumulates 3.86" (98mm) of precipitation.
How much does it rain in Grand Mound?
Throughout the year, in Grand Mound, Washington, there are 168 rainfall days, and 23.94" (608mm) of precipitation is accumulated.
When does it snow in Grand Mound?
January through March, November and December are months with snowfall in Grand Mound, Washington.
How many days does it snow in Grand Mound?
In Grand Mound, during the entire year, snow falls for 7.9 days and aggregates up to 4.02" (102mm) of snow.
What are the months with the lowest UV index in Grand Mound?
The months with the lowest UV index in Grand Mound are January, February, November and December, with an average maximum UV index of 2.
What is the snowiest month in Grand Mound?
The month with the most snowfall in Grand Mound is February, when snow falls for 2.7 days and typically aggregates up to 1.54" (39mm) of snow.
When is Daylight Saving Time (DST) in Grand Mound?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Grand Mound, 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.
When it does not snow in Grand Mound?
In Grand Mound, snow does not fall in April through October.
When are the longest days in Grand Mound?
June has the longest days of the year, with an average of 15h and 48min of daylight.
What are the months with the highest UV index in Grand Mound?
June and July, with an average maximum UV index of 5, are months with the highest UV index.
What is the least humid month in Grand Mound?
July is the least humid month in Grand Mound, with an average relative humidity of 73%.
What is the driest month in Grand Mound?
The month with the least rainfall is July, when the rain falls for 6.3 days and typically collects 0.35" (9mm) of precipitation.
What month is the hottest in Grand Mound?
Grand Mound's August weather, marked by an average high temperature of 77.4°F (25.2°C) and an average low temperature of 49.8°F (9.9°C), is the warmest in the year.
What month has the most sunshine in Grand Mound?
The month with the most sunshine in Grand Mound is August, with an average of 10.1h of sunshine.
What is the most humid month in Grand Mound?
The most humid month in Grand Mound, Washington, is November, with an average relative humidity of 90%.
What are the coldest months in Grand Mound?
December is the coldest month of the year in Grand Mound, Washington, registering average temperatures as high as 42.6°F (5.9°C) and as low as 33.1°F (0.6°C).
What is the month with the shortest days in Grand Mound?
The month with the shortest days in Grand Mound is December, with an average of 8h and 36min of daylight.
What is the month with the least sunshine in Grand Mound?
With an average of 3.5h of sunshine, December has the least sunshine of the year in Grand Mound.
Average temperature
Grand Mound, WA
The warmest month (with the highest average high temperature) is August (77.4°F).
The month with the lowest average high temperature is December (42.6°F).
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is December (33.1°F).
Average pressure
Grand Mound, WA
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.06"Hg - Average pressure in March:
30.02"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.04"Hg - Average pressure in June:
30.04"Hg
- Average pressure in July:
30.06"Hg - Average pressure in August:
30.02"Hg - Average pressure in September:
30.02"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 (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.02"Hg).
Average wind speed
Grand Mound, WA
- Average wind speed in January:
4.5mph - Average wind speed in February:
4.3mph - Average wind speed in March:
4.5mph - Average wind speed in April:
4.4mph - Average wind speed in May:
4mph - Average wind speed in June:
4.2mph
- Average wind speed in July:
4mph - Average wind speed in August:
3.8mph - Average wind speed in September:
3.6mph - Average wind speed in October:
3.9mph - Average wind speed in November:
4.5mph - Average wind speed in December:
4.2mph
The windiest months (with the highest average wind speed) are January, March and November (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.6mph).
Average humidity
Grand Mound, WA
The month with the highest relative humidity is November (90%).
The month with the lowest relative humidity is July (73%).
Average rainfall
Grand Mound, WA
- Average rainfall in January:
3.86" - Average rainfall in February:
2.32" - Average rainfall in March:
2.6" - Average rainfall in April:
1.85" - Average rainfall in May:
1.34" - Average rainfall in June:
1.06"
- Average rainfall in July:
0.35" - Average rainfall in August:
0.39" - Average rainfall in September:
1.14" - Average rainfall in October:
2.76" - Average rainfall in November:
2.52" - Average rainfall in December:
3.74"
The wettest month (with the highest rainfall) is January (3.86").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days
Grand Mound, WA
- Average rainfall days in January:
17.8 days - Average rainfall days in February:
15.9 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
17.6 days - Average rainfall days in May:
13.4 days - Average rainfall days in June:
10.9 days
- Average rainfall days in July:
6.3 days - Average rainfall days in August:
5.6 days - Average rainfall days in September:
10.6 days - Average rainfall days in October:
14.9 days - Average rainfall days in November:
17.3 days - Average rainfall days in December:
17.9 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (5.6 days).
Average snowfall
Grand Mound, WA
The month with the highest snowfall is February (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Grand Mound, WA
- Average snowfall days in January:
1.8 days - Average snowfall days in February:
2.7 days - Average snowfall days in March:
1.5 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 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
1.2 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Grand Mound, WA
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
15h and 5min
- Average daylight in July:
15h and 2min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 4min
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:
3h and 4min - Average sunshine in February:
3h and 4min - Average sunshine in March:
4h and 5min - Average sunshine in April:
6h and 5min - Average sunshine in May:
8h and 0min - Average sunshine in June:
8h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 2min - Average sunshine in October:
4h and 5min - Average sunshine in November:
4h and 0min - Average sunshine in December:
3h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days
Grand Mound, WA
- Average sunshine days in January:
10.7 days - Average sunshine days in February:
9.3 days - Average sunshine days in March:
9.3 days - Average sunshine days in April:
10.1 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
15.8 days
- Average sunshine days in July:
20.8 days - Average sunshine days in August:
20.9 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
14.3 days - Average sunshine days in November:
10.5 days - Average sunshine days in December:
10.8 days
The month with the most sunshine days is August (20.9 days).
The months with the least sunshine days are February and March (9.3 days).
Average UV index
Grand Mound, WA
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Grand Mound, WA
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility
Grand Mound, WA
The month with the highest visibility is July (5mi).
The months with the lowest visibility are January, February, March, April, May, June, August, September, October, November and December (4mi).
Grand Mound, Washington, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location
