Climate and monthly weather forecastPorter, WA
Climate and monthly weather forecast
Weather in January
January in Porter, Washington, is a chilly winter month, with an average temperature ranging between max 44.2°F (6.8°C) and min 34.3°F (1.3°C). January's weather records an average high-temperature of a frosty 44.2°F (6.8°C), showing little deviation from December. Weather in January »Weather in February
February, the last month of the winter in Porter, is also a frosty month, with an average temperature fluctuating between 33.4°F (0.8°C) and 46°F (7.8°C). As Porter transitions into February, the average high-temperature stands at a still frosty 46°F (7.8°C), offering little variation from the preceding month. Weather in February »Weather in March
March, the first month of the spring in Porter, is a cool month, with an average temperature fluctuating between 35.1°F (1.7°C) and 50°F (10°C). Porter indicates an average high-temperature of a cool 50°F (10°C) in March, showing minor variation from February's 46°F (7.8°C). Weather in March »Weather in April
April in Porter, Washington, is a moderate spring month, with an average temperature ranging between max 55.4°F (13°C) and min 37°F (2.8°C). The arrival of April introduces a minor uplift in high-temperatures, adjusting from a fresh 50°F (10°C) in March to a mild 55.4°F (13°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Porter, Washington, with temperature in the range of an average low of 41.5°F (5.3°C) and an average high of 64°F (17.8°C). A soft shift in the average high-temperature is noticeable in May, transitioning from a mild 55.4°F (13°C) in April to an enjoyable 64°F (17.8°C). Weather in May »Weather in June
The first month of the summer, June, is a pleasant month in Porter, Washington, with an average temperature varying between 68.5°F (20.3°C) and 45°F (7.2°C). June brings an average high-temperature of an agreeable 68.5°F (20.3°C), showing a slight difference from May's 64°F (17.8°C). Weather in June »Weather in July
July is a moderately hot summer month in Porter, Washington, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 75.7°F (24.3°C). Porter's July weather indicates a minor ascent in high-temperatures, adjusting from an agreeable 68.5°F (20.3°C) in June to a warm 75.7°F (24.3°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Porter, Washington, with an average temperature ranging between max 76.6°F (24.8°C) and min 50.2°F (10.1°C). August registers as the month with the highest average temperatures, reaching 76.6°F (24.8°C) at its peak and 50.2°F (10.1°C) at the lowest. Weather in August »Weather in September
September, the first month of the autumn in Porter, is still a pleasant month, with an average temperature ranging between min 47.3°F (8.5°C) and max 69.6°F (20.9°C). The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 76.6°F (24.8°C) to a pleasant 69.6°F (20.9°C). Weather in September »Weather in October
October, the same as September, in Porter, Washington, is a moderate autumn month, with an average temperature varying between 58.3°F (14.6°C) and 42.3°F (5.7°C). Porter observes a minor decrease in the average high-temperature with the arrival of October, falling from September's agreeable 69.6°F (20.9°C) to a refreshing 58.3°F (14.6°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Porter, Washington, with temperature in the range of an average low of 37.6°F (3.1°C) and an average high of 48°F (8.9°C). Porter's November weather features a mild decline in high-temperatures, reducing from a moderate 58.3°F (14.6°C) in October to a frosty 48°F (8.9°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Porter, Washington, with temperature in the range of an average low of 33.3°F (0.7°C) and an average high of 42.3°F (5.7°C). With average high and low temperatures of 42.3°F (5.7°C) and 33.3°F (0.7°C) respectively, December is Porter'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 is the month with the most rainfall. Rain falls for 19.2 days and accumulates 7.32" (186mm) of precipitation.
In Porter, Washington, during the entire year, the rain falls for 183.5 days and collects up to 44.17" (1122mm) of precipitation.
January through March, November and December are months with snowfall in Porter.
In Porter, Washington, during the entire year, snow falls for 9.1 days and aggregates up to 5.75" (146mm) of snow.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
The month with the most snowfall in Porter is February, when snow falls for 3.5 days and typically aggregates up to 2.56" (65mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Porter, 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 Porter, Washington.
With an average of 15h and 48min of daylight, June has the longest days of the year in Porter.
The months with the highest UV index in Porter, Washington, are June and July, with an average maximum UV index of 5.
With an average relative humidity of 73%, July is the least humid month in Porter, Washington.
July is the month with the least rainfall in Porter, Washington. Rain falls for 6.9 days and accumulates 0.43" (11mm) of precipitation.
The months with the most sunshine are July and August, with an average of 10.3h of sunshine.
Porter notes the warmest temperatures in August, with a average high of 76.6°F (24.8°C) and a low of 50.2°F (10.1°C).
In Porter, the lowest temperatures are generally noted in December, averaging a high of 42.3°F (5.7°C) and a low of 33.3°F (0.7°C).
With an average relative humidity of 91%, December is the most humid month.
December has the shortest days of the year in Porter, Washington, with an average of 8h and 36min of daylight.
December has the least sunshine of the year in Porter, with an average of 3.3h of sunshine.
Average temperature
Porter, WA
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (42.3°F).
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure
Porter, WA
- Average pressure in January:
30.08"Hg - Average pressure in February:
30.05"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
30.06"Hg - Average pressure in May:
30.04"Hg - Average pressure in June:
30.05"Hg
- Average pressure in July:
30.06"Hg - Average pressure in August:
30.03"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is March (30.01"Hg).
Average wind speed
Porter, WA
- Average wind speed in January:
4.4mph - Average wind speed in February:
4.4mph - Average wind speed in March:
4.4mph - Average wind speed in April:
4.4mph - Average wind speed in May:
4.3mph - Average wind speed in June:
4.5mph
- Average wind speed in July:
4.2mph - Average wind speed in August:
3.9mph - Average wind speed in September:
3.5mph - Average wind speed in October:
3.7mph - Average wind speed in November:
4.2mph - Average wind speed in December:
4.1mph
The windiest month (with the highest average wind speed) is June (4.5mph).
The calmest month (with the lowest average wind speed) is September (3.5mph).
Average humidity
Porter, WA
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (73%).
Average rainfall
Porter, WA
- Average rainfall in January:
7.32" - Average rainfall in February:
4.17" - Average rainfall in March:
4.72" - Average rainfall in April:
3.07" - Average rainfall in May:
2.01" - Average rainfall in June:
1.34"
- Average rainfall in July:
0.43" - Average rainfall in August:
0.51" - Average rainfall in September:
1.89" - Average rainfall in October:
5.31" - Average rainfall in November:
6.22" - Average rainfall in December:
7.17"
The wettest month (with the highest rainfall) is January (7.32").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days
Porter, WA
- Average rainfall days in January:
19.2 days - Average rainfall days in February:
18 days - Average rainfall days in March:
20.8 days - Average rainfall days in April:
19.3 days - Average rainfall days in May:
14.2 days - Average rainfall days in June:
11.7 days
- Average rainfall days in July:
6.9 days - Average rainfall days in August:
5.7 days - Average rainfall days in September:
12.3 days - Average rainfall days in October:
16.3 days - Average rainfall days in November:
19.3 days - Average rainfall days in December:
19.8 days
The month with the highest number of rainy days is March (20.8 days).
The month with the least rainy days is August (5.7 days).
Average snowfall
Porter, WA
The month with the highest snowfall is February (2.56").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Porter, WA
- Average snowfall days in January:
1.9 days - Average snowfall days in February:
3.5 days - Average snowfall days in March:
1.7 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:
0.7 days - Average snowfall days in December:
1.2 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Porter, 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 36min - Average daylight in May:
15h and 6min - Average daylight in June:
15h and 48min
- Average daylight in July:
15h and 24min - Average daylight in August:
14h and 12min - Average daylight in September:
12h and 30min - Average daylight in October:
10h and 54min - Average daylight in November:
9h and 24min - Average daylight in December:
8h and 36min
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 24min - Average sunshine in February:
3h and 36min - Average sunshine in March:
5h and 12min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 30min - Average sunshine in October:
4h and 54min - Average sunshine in November:
3h and 48min - Average sunshine in December:
3h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days
Porter, WA
- Average sunshine days in January:
9.4 days - Average sunshine days in February:
7.9 days - Average sunshine days in March:
7.8 days - Average sunshine days in April:
8.8 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
15.3 days
- Average sunshine days in July:
22.3 days - Average sunshine days in August:
22.4 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
13.4 days - Average sunshine days in November:
8.2 days - Average sunshine days in December:
9.1 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is March (7.8 days).
Average UV index
Porter, 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
Porter, WA
The months with the most cloud cover are January and December (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility
Porter, WA
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (4mi).
