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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 is a chilly winter month in John Sam Lake, Washington, with an average temperature ranging between max 44.1°F (6.7°C) and min 35.8°F (2.1°C). The average high-temperature for January is a chilly 44.1°F (6.7°C), closely aligning with the temperature of the preceding month. Weather in January »
Weather in February
The last month of the winter, February, is another chilly month in John Sam Lake, Washington, with temperature in the range of an average high of 44.8°F (7.1°C) and an average low of 35.2°F (1.8°C). The commencement of February records an average high-temperature of a still chilly 44.8°F (7.1°C), barely varying from January's 44.1°F (6.7°C). Weather in February »
Weather in March
The first month of the spring, March, is still a chilly month in John Sam Lake, Washington, with an average temperature varying between 37°F (2.8°C) and 48.9°F (9.4°C). John Sam Lake's shift into March is marked by a subtle change to a still chilly 48.9°F (9.4°C) from February's 44.8°F (7.1°C) in temperature. Weather in March »
Weather in April
April is a fresh spring month in John Sam Lake, Washington, with an average temperature fluctuating between 40.3°F (4.6°C) and 54.3°F (12.4°C). John Sam Lake's weather in April presents a minor rise in the average high-temperature, moving from a frosty 48.9°F (9.4°C) in March to a fresh 54.3°F (12.4°C). Weather in April »
Weather in May
May, the last month of the spring in John Sam Lake, is a refreshing month, with an average temperature varying between 44.8°F (7.1°C) and 62.2°F (16.8°C). John Sam Lake's weather in May presents a minor rise in the average high-temperature, moving from a cool 54.3°F (12.4°C) in April to a refreshing 62.2°F (16.8°C). Weather in May »
Weather in June
The first month of the summer, June, is still a comfortable month in John Sam Lake, Washington, with an average temperature varying between 47.7°F (8.7°C) and 66.2°F (19°C). June's arrival brings an average high-temperature of a still refreshing 66.2°F (19°C), demonstrating subtle variation from the preceding month. Weather in June »
Weather in July
July is a pleasant summer month in John Sam Lake, Washington, with temperature in the range of an average low of 51.4°F (10.8°C) and an average high of 72.1°F (22.3°C). John Sam Lake's transition into July brings a slight rise in the average high-temperature, moving from a refreshing 66.2°F (19°C) in June to a pleasant 72.1°F (22.3°C). Weather in July »
Weather in August
The last month of the summer, August, is another pleasant month in John Sam Lake, Washington, with an average temperature varying between 73°F (22.8°C) and 52.5°F (11.4°C). August tends to be the warmest month, with temperatures averaging a daily high of 73°F (22.8°C) and a low of 52.5°F (11.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a comfortable month in John Sam Lake, Washington, with temperature in the range of an average high of 67.1°F (19.5°C) and an average low of 50°F (10°C). September signals a slight drop in average high-temperature, sliding from August's pleasant 73°F (22.8°C) to a comfortable 67.1°F (19.5°C). Weather in September »
Weather in October
October, the same as September, in John Sam Lake, Washington, is a moderate autumn month, with an average temperature fluctuating between 57°F (13.9°C) and 44.4°F (6.9°C). The onset of October comes with a shift in the average high-temperature, falling from a comfortable 67.1°F (19.5°C) in September to a still refreshing 57°F (13.9°C). Weather in October »
Weather in November
November, the last month of the autumn in John Sam Lake, is also a frosty month, with an average temperature fluctuating between 47.7°F (8.7°C) and 39.2°F (4°C). Onset of November comes with a temperature decline, the average high falling from a moderate 57°F (13.9°C) in October to a frosty 47.7°F (8.7°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in John Sam Lake, Washington, with an average temperature fluctuating between 42.3°F (5.7°C) and 34.7°F (1.5°C). With average temperatures fluctuating between a high of 42.3°F (5.7°C) and a low of 34.7°F (1.5°C), December stands out as the coldest month. Weather in December »
Updated: Jun 15, 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
What are the most humid months?
The months with the highest humidity are January and December, with an average relative humidity of 85%.
How much does it rain?
In John Sam Lake, during the entire year, the rain falls for 179.1 days and collects up to 29.57" (751mm) of precipitation.
When does it snow?
January through April, November and December are months with snowfall.
How many days does it snow?
Throughout the year, there are 8.9 snowfall days, and 6.1" (155mm) of snow is accumulated.
What is the month with the least sunshine?
The months with the least sunshine are January and December, with an average of 4.2h of sunshine.
What are the months with the lowest UV index?
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?
The month with the most snowfall is February, when snow falls for 3.1 days and typically aggregates up to 2.68" (68mm) of snow.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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?
May through October are months without snowfall.
When are the longest days in John Sam Lake?
June has the longest days of the year, with an average of 16h and 0min of daylight.
When is the highest UV index?
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 John Sam Lake?
The least humid month is July, with an average relative humidity of 73%.
What is the driest month?
July is the month with the least rainfall. Rain falls for 7.3 days and accumulates 0.47" (12mm) of precipitation.
What time of the year is the hottest?
August is the warmest month of the year, registering average temperatures as high as 73°F (22.8°C) and as low as 52.5°F (11.4°C).
What month has the most sunshine?
August has the most sunshine of the year, with an average of 10.6h of sunshine.
What is the wettest month?
The month with the most rainfall in John Sam Lake is November, when the rain falls for 19.7 days and typically aggregates up to 4.06" (103mm) of precipitation.
What is the coldest month?
John Sam Lake's December weather, with an average high temperature of 42.3°F (5.7°C) and an average low temperature of 34.7°F (1.5°C), tends to be the coldest of the year.
What is the month with the shortest days?
With an average of 8h and 24min of daylight, December has the shortest days of the year.
Average temperature
John Sam Lake, WA
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is December (42.3°F).
The month with the highest average low temperature is August (52.5°F).
The coldest month (with the lowest average low temperature) is December (34.7°F).
Average pressure
John Sam Lake, WA
- Average pressure in January:
30.09"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:
30.02"Hg - Average pressure in June:
30.02"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:
30.03"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.08"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed
John Sam Lake, WA
- Average wind speed in January:
5.7mph - Average wind speed in February:
5.2mph - Average wind speed in March:
5.8mph - Average wind speed in April:
5mph - Average wind speed in May:
4.1mph - Average wind speed in June:
3.9mph
- Average wind speed in July:
3.6mph - Average wind speed in August:
3.5mph - Average wind speed in September:
4mph - Average wind speed in October:
4.8mph - Average wind speed in November:
5.8mph - Average wind speed in December:
5.4mph
The windiest months (with the highest average wind speed) are March and November (5.8mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity
John Sam Lake, WA
The months with the highest relative humidity are January and December (85%).
The month with the lowest relative humidity is July (73%).
Average rainfall
John Sam Lake, WA
- Average rainfall in January:
3.94" - Average rainfall in February:
3.03" - Average rainfall in March:
3.11" - Average rainfall in April:
2.64" - Average rainfall in May:
1.81" - Average rainfall in June:
1.3"
- Average rainfall in July:
0.47" - Average rainfall in August:
0.51" - Average rainfall in September:
1.77" - Average rainfall in October:
3.11" - Average rainfall in November:
4.06" - Average rainfall in December:
3.82"
The wettest month (with the highest rainfall) is November (4.06").
The driest month (with the least rainfall) is July (0.47").
Average rainfall days
John Sam Lake, WA
- Average rainfall days in January:
18.2 days - Average rainfall days in February:
16.7 days - Average rainfall days in March:
19.8 days - Average rainfall days in April:
18.3 days - Average rainfall days in May:
13.3 days - Average rainfall days in June:
12.3 days
- Average rainfall days in July:
7.3 days - Average rainfall days in August:
6.1 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
15.8 days - Average rainfall days in November:
19.7 days - Average rainfall days in December:
19.3 days
The month with the highest number of rainy days is March (19.8 days).
The month with the least rainy days is August (6.1 days).
Average snowfall
John Sam Lake, WA
The month with the highest snowfall is February (2.68").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
John Sam Lake, WA
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
3.1 days - Average snowfall days in March:
1.6 days - Average snowfall days in April:
0.2 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:
1.5 days
The month with the highest number of snowfall days is February (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
John Sam Lake, WA
- Average daylight in January:
8h and 5min - Average daylight in February:
10h and 2min - Average daylight in March:
11h and 5min - Average daylight in April:
13h and 4min - Average daylight in May:
15h and 1min - Average daylight in June:
16h and 0min
- Average daylight in July:
15h and 4min - Average daylight in August:
14h and 1min - Average daylight in September:
12h and 4min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 2min - Average daylight in December:
8h and 2min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 5min - Average sunshine in May:
9h and 1min - Average sunshine in June:
9h and 2min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 3min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days
John Sam Lake, WA
- Average sunshine days in January:
10.8 days - Average sunshine days in February:
8.6 days - Average sunshine days in March:
9.6 days - Average sunshine days in April:
9.2 days - Average sunshine days in May:
15.4 days - Average sunshine days in June:
15.2 days
- Average sunshine days in July:
21.5 days - Average sunshine days in August:
23.1 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
13.8 days - Average sunshine days in November:
8.6 days - Average sunshine days in December:
10.1 days
The month with the most sunshine days is August (23.1 days).
The months with the least sunshine days are February and November (8.6 days).
Average UV index
John Sam Lake, 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
John Sam Lake, WA
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility
John Sam Lake, WA
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
John Sam Lake, Washington, USA
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