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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, the same as December, is a wintry winter month in Preston, Washington, with an average temperature fluctuating between 30.9°F (-0.6°C) and 41.5°F (5.3°C). Shifting into January, Preston records an average high-temperature of a still icy 41.5°F (5.3°C), presenting minor fluctuations compared to the previous month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Preston, Washington, with an average temperature varying between 30.4°F (-0.9°C) and 42.1°F (5.6°C). February's arrival registers an average high-temperature of a still icy 42.1°F (5.6°C), closely aligning with the temperature of the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Preston, Washington, with an average temperature ranging between min 32.4°F (0.2°C) and max 46.9°F (8.3°C). March's onset records a minor alteration in the average high-temperature to a frosty 46.9°F (8.3°C) from February's 42.1°F (5.6°C). Weather in March »
Weather in April
April in Preston, Washington, is a cool spring month, with temperature in the range of an average high of 52.9°F (11.6°C) and an average low of 35.4°F (1.9°C). A slight uplift of average high-temperatures is noted in April, with temperatures adjusting from a chilly 46.9°F (8.3°C) in March to a cool 52.9°F (11.6°C). Weather in April »
Weather in May
May, the last month of the spring in Preston, is a refreshing month, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 61.9°F (16.6°C). May comes with an increase, with the average high-temperature moving from a fresh 52.9°F (11.6°C) in April to an enjoyable 61.9°F (16.6°C). Weather in May »
Weather in June
June, the first month of the summer in Preston, is still a refreshing month, with temperature in the range of an average low of 43°F (6.1°C) and an average high of 66°F (18.9°C). As Preston steps into June, the average high-temperature is measured at a still refreshing 66°F (18.9°C), displaying minor differences from May's 61.9°F (16.6°C). Weather in June »
Weather in July
July is a moderately hot summer month in Preston, Washington, with an average temperature varying between 46.9°F (8.3°C) and 73.9°F (23.3°C). July's arrival is noted with a slight increase in the average high-temperature, moving from a refreshing 66°F (18.9°C) in June to a warm 73.9°F (23.3°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Preston, Washington, with an average temperature varying between 48.7°F (9.3°C) and 74.8°F (23.8°C). In Preston, temperatures reach their average annual highs in August, measuring 74.8°F (23.8°C) and a minimum average of 48.7°F (9.3°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a comfortable month in Preston, Washington, with temperature in the range of an average low of 46°F (7.8°C) and an average high of 67.8°F (19.9°C). September signifies a minor drop in average high-temperature, transitioning from a warm 74.8°F (23.8°C) in August to a refreshing 67.8°F (19.9°C). Weather in September »
Weather in October
October, the same as September, in Preston, Washington, is another refreshing autumn month, with an average temperature ranging between min 41.4°F (5.2°C) and max 56.3°F (13.5°C). The transition into October indicates a reduction in the average high-temperature, down to a mild 56.3°F (13.5°C) from September's comfortable 67.8°F (19.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Preston, is another chilly month, with an average temperature varying between 45.7°F (7.6°C) and 34.9°F (1.6°C). The transition into November indicates a reduction in the average high-temperature, down to a frosty 45.7°F (7.6°C) from October's mild 56.3°F (13.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Preston, Washington, with an average temperature fluctuating between 29.8°F (-1.2°C) and 39.7°F (4.3°C). The coldest temperatures occur during December, when averages reach a peak of 39.7°F (4.3°C) and a low of 29.8°F (-1.2°C). Weather in December »
Updated: Jul 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
What are the most humid months?
January and February, with an average relative humidity of 87%, are most humid months.
What is the rainiest month?
The month with the most rainfall is January, when the rain falls for 18.4 days and typically aggregates up to 6.1" (155mm) of precipitation.
How much does it rain?
Throughout the year, there are 184.9 rainfall days, and 39.96" (1015mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, November and December.
How many days does it snow in Preston?
Throughout the year, there are 17.4 snowfall days, and 11.38" (289mm) of snow is accumulated.
What are the months with the least sunshine?
January and December, with an average of 3.9h of sunshine, are months with the least sunshine in Preston.
When does it snow the most?
The month with the most snowfall is February, when snow falls for 5.4 days and typically aggregates up to 3.94" (100mm) of snow.
When is the lowest UV index?
With an average maximum UV index of 1, February is the month with the lowest UV index.
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?
June has the longest days of the year, with an average of 15h and 54min of daylight.
What is the least humid month?
The least humid month is July, with an average relative humidity of 71%.
What is the driest month?
July and August are months with the least rain when the rain falls for 7.9 days and typically aggregates up to 0.59" (15mm) of rain.
When is the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 5.
What time of the year is the hottest?
In Preston, August is the warmest month, with temperatures averaging a high of 74.8°F (23.8°C) and a low of 48.7°F (9.3°C).
What month has the most sunshine?
With an average of 10.6h of sunshine, August has the most sunshine of the year.
What part of the year is the coldest?
Preston's December weather reaches an average high of 39.7°F (4.3°C) and an average low of 29.8°F (-1.2°C), making it the coldest month.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 8h and 30min of daylight.
Average temperature
Preston, WA
The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (39.7°F).
The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is December (29.8°F).
Average pressure
Preston, WA
- Average pressure in January:
30.11"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:
30.01"Hg - Average pressure in June:
30.01"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is August (29.99"Hg).
Average wind speed
Preston, WA
- Average wind speed in January:
5.1mph - Average wind speed in February:
4.5mph - Average wind speed in March:
4.4mph - Average wind speed in April:
3.9mph - Average wind speed in May:
3.5mph - Average wind speed in June:
3.4mph
- Average wind speed in July:
3.4mph - Average wind speed in August:
3.3mph - Average wind speed in September:
3.5mph - Average wind speed in October:
3.9mph - Average wind speed in November:
4.5mph - Average wind speed in December:
4.6mph
The windiest month (with the highest average wind speed) is January (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.3mph).
Average humidity
Preston, WA
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is July (71%).
Average rainfall
Preston, WA
- Average rainfall in January:
6.1" - Average rainfall in February:
4.49" - Average rainfall in March:
4.33" - Average rainfall in April:
3.19" - Average rainfall in May:
1.93" - Average rainfall in June:
1.46"
- Average rainfall in July:
0.59" - Average rainfall in August:
0.59" - Average rainfall in September:
1.89" - Average rainfall in October:
4.25" - Average rainfall in November:
5.08" - Average rainfall in December:
6.06"
The wettest month (with the highest rainfall) is January (6.1").
The driest months (with the least rainfall) are July and August (0.59").
Average rainfall days
Preston, WA
- Average rainfall days in January:
18.4 days - Average rainfall days in February:
17.1 days - Average rainfall days in March:
20.5 days - Average rainfall days in April:
19.2 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
7.9 days - Average rainfall days in August:
6.4 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
16.5 days - Average rainfall days in November:
19.3 days - Average rainfall days in December:
18.5 days
The month with the highest number of rainy days is March (20.5 days).
The month with the least rainy days is August (6.4 days).
Average snowfall
Preston, WA
The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Preston, WA
- Average snowfall days in January:
2.7 days - Average snowfall days in February:
5.4 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.8 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 days - Average snowfall days in October:
0 days - Average snowfall days in November:
1 days - Average snowfall days in December:
3.7 days
The month with the highest number of snowfall days is February (5.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Preston, WA
- Average daylight in January:
9h and 0min - 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:
15h and 5min
- Average daylight in July:
15h and 3min - 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 3min
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:
3h and 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
5h and 3min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 4min - Average sunshine in June:
8h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 2min - Average sunshine in November:
4h and 1min - Average sunshine in December:
3h and 5min
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: 3h and 54min).
Average sunshine days
Preston, WA
- Average sunshine days in January:
10.5 days - Average sunshine days in February:
7.8 days - Average sunshine days in March:
8.3 days - Average sunshine days in April:
8.7 days - Average sunshine days in May:
13.4 days - Average sunshine days in June:
13.5 days
- Average sunshine days in July:
20.3 days - Average sunshine days in August:
21.9 days - Average sunshine days in September:
16 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
8.9 days - Average sunshine days in December:
10 days
The month with the most sunshine days is August (21.9 days).
The month with the least sunshine days is February (7.8 days).
Average UV index
Preston, WA
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Preston, WA
The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Preston, WA
The months with the highest visibility are May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, November and December (4mi).
Preston, Washington, USA
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