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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, like December, is another chilly winter month in Walnut Grove, Washington, with temperature in the range of an average high of 45.1°F and an average low of 34.9°F. Walnut Grove's January showcases an average high-temperature of a still frosty 45.1°F, hardly distinct from December's 43.7°F. Weather in January »
Weather in February
February, the last month of the winter in Walnut Grove, is also a frosty month, with temperature in the range of an average low of 35.1°F and an average high of 46.9°F. The introduction of February notes a subtle temperature variation to a still frosty 46.9°F from January's 45.1°F. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Walnut Grove, Washington, with an average temperature ranging between min 37.6°F and max 51.8°F. March's arrival shows an average high-temperature of a cool 51.8°F, hardly different from the previous month. Weather in March »
Weather in April
April is a refreshing spring month in Walnut Grove, Washington, with an average temperature fluctuating between 39.4°F and 58.1°F. Walnut Grove's weather in April presents a minor rise in the average high-temperature, moving from a cool 51.8°F in March to a moderate 58.1°F. Weather in April »
Weather in May
May, the last month of the spring in Walnut Grove, is a refreshing month, with temperature in the range of an average low of 43.7°F and an average high of 66.6°F. Walnut Grove in May experiences a slight uptick in the average high-temperature, adjusting from April's moderate 58.1°F to a comfortable 66.6°F. Weather in May »
Weather in June
The first month of the summer, June, is an agreeable month in Walnut Grove, Washington, with an average temperature ranging between min 47.7°F and max 72°F. A soft shift in the average high-temperature is noticeable in June, transitioning from an enjoyable 66.6°F in May to an agreeable 72°F. Weather in June »
Weather in July
July in Walnut Grove, Washington, is a warm summer month, with temperature in the range of an average high of 79.5°F and an average low of 51.6°F. As June transitions into July, Walnut Grove notices a gentle rise in the average high-temperature, transitioning from a pleasant 72°F to a moderately hot 79.5°F. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Walnut Grove, Washington, with an average temperature fluctuating between 54°F and 80.6°F. August is the month when Walnut Grove's temperatures reach their peak, with averages of 80.6°F and lows of 54°F. For August, the heat index is estimated at 82.4°F. Weather in August »
Weather in September
September, the first month of the autumn in Walnut Grove, is still a pleasant month, with an average temperature fluctuating between 50.7°F and 73°F. The arrival of September suggests a slight decrease in the average high-temperature, moving from a warm 80.6°F in August to an agreeable 73°F. Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Walnut Grove, Washington, with temperature in the range of an average high of 60.8°F and an average low of 45.1°F. With October's onset, the weather shows a temperature decrease, transitioning from an agreeable 73°F in September to an enjoyable 60.8°F. Weather in October »
Weather in November
November, the last month of the autumn in Walnut Grove, is also a fresh month, with an average temperature ranging between min 39.6°F and max 50.2°F. The onset of November results in a decrease in the average high-temperature, receding from a refreshing 60.8°F in October to a cool 50.2°F. Weather in November »
Weather in December
December, the first month of the winter in Walnut Grove, is still a chilly month, with an average temperature fluctuating between 43.7°F and 34°F. December is Walnut Grove's coldest month, registering average high temperatures of 43.7°F and lows of 34°F. Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Walnut Grove?
The months with the highest humidity are January and February, with an average relative humidity of 84%.
How many days does it rain in Walnut Grove?
In Walnut Grove, during the entire year, the rain falls for 177.1 days and collects up to 34.29" of precipitation.
When does it snow in Walnut Grove?
Months with snowfall in Walnut Grove, Washington, are January through March, November and December.
How much does it snow in Walnut Grove?
Throughout the year, in Walnut Grove, there are 5.9 snowfall days, and 3.74" of snow is accumulated.
What are the months with the least sunshine in Walnut Grove?
The months with the least sunshine in Walnut Grove, Washington, are January and February, with an average of 4.1h of sunshine.
What is the month with the lowest UV index in Walnut Grove?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When does it snow the most in Walnut Grove?
February is the month with the most snowfall. Snow falls for 2.1 days and accumulates 1.42" of snow.
When is Daylight Saving Time (DST) in Walnut Grove?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Walnut Grove, and the time zone changes from PST to PDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from PDT to PST.
When it does not snow in Walnut Grove?
April through October are months without snowfall.
When are the longest days in Walnut Grove?
June has the longest days of the year in Walnut Grove, Washington, with an average of 15h and 36min of daylight.
What is the driest month in Walnut Grove?
The month with the least rainfall in Walnut Grove, Washington, is July, when the rain falls for 5.4 days and typically collects 0.35" of precipitation.
When is the highest UV index in Walnut Grove?
The month with the highest UV index is July, with an average maximum UV index of 6.
What is the hottest time of year in Walnut Grove?
August is the warmest month of the year in Walnut Grove, registering average temperatures as high as 80.6°F and as low as 54°F.
What is the least humid month in Walnut Grove?
August is the least humid month, with an average relative humidity of 65%.
What month has the most sunshine in Walnut Grove?
With an average of 11h of sunshine, August has the most sunshine of the year in Walnut Grove, Washington.
What part of the year is the coldest in Walnut Grove?
Walnut Grove, Washington, experiences its lowest temperatures in December, with an average peak of 43.7°F and a low of 34°F.
What is the rainiest month in Walnut Grove?
The month with the most rainfall is December, when the rain falls for 19.6 days and typically aggregates up to 5.08" of precipitation.
What is the month with the shortest days in Walnut Grove?
The month with the shortest days is December, with an average of 8h and 48min of daylight.
Average temperature
Walnut Grove, WA
The warmest month (with the highest average high temperature) is August (80.6°F).
The month with the lowest average high temperature is December (43.7°F).
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is December (34°F).
Average pressure
Walnut Grove, WA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
30.03"Hg
- Average pressure in July:
30.03"Hg - Average pressure in August:
30"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
Walnut Grove, WA
- Average wind speed in January:
5.5mph - Average wind speed in February:
5.3mph - Average wind speed in March:
5.2mph - Average wind speed in April:
4.7mph - Average wind speed in May:
4.1mph - Average wind speed in June:
4mph
- Average wind speed in July:
4mph - Average wind speed in August:
3.8mph - Average wind speed in September:
3.9mph - Average wind speed in October:
4.5mph - Average wind speed in November:
5.2mph - Average wind speed in December:
5.2mph
The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity
Walnut Grove, WA
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (65%).
Average rainfall
Walnut Grove, WA
- Average rainfall in January:
5.04" - Average rainfall in February:
3.62" - Average rainfall in March:
3.74" - Average rainfall in April:
3.19" - Average rainfall in May:
1.85" - Average rainfall in June:
1.46"
- Average rainfall in July:
0.35" - Average rainfall in August:
0.39" - Average rainfall in September:
1.73" - Average rainfall in October:
3.78" - Average rainfall in November:
4.06" - Average rainfall in December:
5.08"
The wettest month (with the highest rainfall) is December (5.08").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days
Walnut Grove, WA
- Average rainfall days in January:
19.3 days - Average rainfall days in February:
17.3 days - Average rainfall days in March:
20.6 days - Average rainfall days in April:
19.4 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
11.1 days
- Average rainfall days in July:
5.4 days - Average rainfall days in August:
4.9 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
15.8 days - Average rainfall days in November:
19.1 days - Average rainfall days in December:
19.6 days
The month with the highest number of rainy days is March (20.6 days).
The month with the least rainy days is August (4.9 days).
Average snowfall
Walnut Grove, WA
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Walnut Grove, WA
- Average snowfall days in January:
1.3 days - Average snowfall days in February:
2.1 days - Average snowfall days in March:
1.4 days - Average snowfall days in April:
0 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:
0.5 days - Average snowfall days in December:
0.6 days
The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Walnut Grove, WA
- Average daylight in January:
9h and 1min - 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:
14h and 5min - Average daylight in June:
15h and 4min
- 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 3min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 1min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 4min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and February (Average sunshine: 4h and 6min).
Average sunshine days
Walnut Grove, WA
- Average sunshine days in January:
10.4 days - Average sunshine days in February:
7.9 days - Average sunshine days in March:
9.1 days - Average sunshine days in April:
8.8 days - Average sunshine days in May:
15.6 days - Average sunshine days in June:
16.5 days
- Average sunshine days in July:
24.1 days - Average sunshine days in August:
23.8 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
14 days - Average sunshine days in November:
9.5 days - Average sunshine days in December:
9.9 days
The month with the most sunshine days is July (24.1 days).
The month with the least sunshine days is February (7.9 days).
Average UV index
Walnut Grove, 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 2).
Average cloud cover
Walnut Grove, WA
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility
Walnut Grove, WA
The months with the highest visibility are July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (5mi).
Walnut Grove, Washington, USA
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