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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
Climate and monthly weather forecast
Weather in January
January, like December, in Portland, Ohio, is an icy winter month, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 24.3°F (-4.3°C). With average temperatures fluctuating between a high of 37.6°F (3.1°C) and a low of 24.3°F (-4.3°C), January stands out as the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Portland, Ohio, with an average temperature ranging between min 27.3°F (-2.6°C) and max 42.3°F (5.7°C). The average high-temperature is a still cold 42.3°F (5.7°C) in February, hardly different from the 37.6°F (3.1°C) recorded in January. Weather in February »
Weather in March
The first month of the spring, March, is a cool month in Portland, Ohio, with temperature in the range of an average high of 52.3°F (11.3°C) and an average low of 35.2°F (1.8°C). Portland's March weather shows an increase in high-temperatures, moving from February's icy 42.3°F (5.7°C) to a cool 52.3°F (11.3°C). Weather in March »
Weather in April
April in Portland, Ohio, is a refreshing spring month, with an average temperature varying between 64.2°F (17.9°C) and 44.6°F (7°C). April brings a rise in the average high-temperature, transitioning from March's fresh 52.3°F (11.3°C) to a comfortable 64.2°F (17.9°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Portland, Ohio, with an average temperature ranging between max 75°F (23.9°C) and min 54.3°F (12.4°C). Portland, Ohio, in May experiences an increase in the average high-temperature, moving from April's refreshing 64.2°F (17.9°C) to a moderately hot 75°F (23.9°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Portland, Ohio, with an average temperature varying between 82.8°F (28.2°C) and 60.4°F (15.8°C). Observing a slight rise in June, the average high-temperature shifts from May's warm 75°F (23.9°C) to a still moderately hot 82.8°F (28.2°C). Weather in June »
Weather in July
July in Portland, Ohio, is a tropical summer month, with an average temperature ranging between min 64°F (17.8°C) and max 86°F (30°C). The warmest time of the year is July, with temperatures averaging a high of 86°F (30°C) and a low of 64°F (17.8°C). Throughout July, the heat index is computed to be a sweltering 98.6°F (37°C). Weather in July »
Weather in August
August, the last month of the summer in Portland, is also a moderately hot month, with an average temperature varying between 62.4°F (16.9°C) and 84.9°F (29.4°C). As Portland welcomes August, the average high-temperature is noted at a warm 84.9°F (29.4°C), closely aligning with the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Portland, is still a warm month, with an average temperature varying between 78.4°F (25.8°C) and 57°F (13.9°C). The arrival of September suggests a slight decrease in the average high-temperature, moving from 84.9°F (29.4°C) in August to a still moderately hot 78.4°F (25.8°C). Weather in September »
Weather in October
October, like September, in Portland, Ohio, is another comfortable autumn month, with an average temperature ranging between max 64.9°F (18.3°C) and min 46.8°F (8.2°C). A shift in the average high-temperature occurs in October, reducing from a warm 78.4°F (25.8°C) in September to a refreshing 64.9°F (18.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Portland, is also a fresh month, with an average temperature ranging between max 52.3°F (11.3°C) and min 36.5°F (2.5°C). The onset of November coincides with a reduction in the average high-temperature, falling from an enjoyable 64.9°F (18.3°C) in October to a fresh 52.3°F (11.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Portland, Ohio, with an average temperature varying between 31.1°F (-0.5°C) and 43.2°F (6.2°C). Portland's December weather features a mild decline in high-temperatures, reducing from a cool 52.3°F (11.3°C) in November to a chilly 43.2°F (6.2°C). Weather in December »
Updated: Jul 16, 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 is the coldest month?
Temperature readings in Portland reach their annual highs in January, averaging 37.6°F (3.1°C) and a minimum average of 24.3°F (-4.3°C).
What is the most humid month?
January and February, with an average relative humidity of 82%, are most humid months.
How many days does it rain?
Throughout the year, in Portland, there are 178.2 rainfall days, and 35.35" (898mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
How many days does it snow?
In Portland, during the entire year, snow falls for 40.4 days and aggregates up to 15.91" (404mm) of snow.
What is the month with the least sunshine?
With an average of 3.5h of sunshine, January has the least sunshine of the year.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.
What is the snowiest month?
February is the month with the most snowfall. Snow falls for 9.8 days and accumulates 4.29" (109mm) 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 EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the rainiest month?
May is the month with the most rainfall. Rain falls for 19.4 days and accumulates 4.02" (102mm) of precipitation.
When is the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When it does not snow?
June through September are months without snowfall.
When are the longest days in Portland?
June has the longest days of the year, with an average of 14h and 54min of daylight.
What is the warmest month?
Portland's temperatures tend to reach their peak averages in July, with a high of 86°F (30°C) and a low of 64°F (17.8°C).
What is the least humid month?
August is the least humid month, with an average relative humidity of 75%.
What month has the most sunshine?
The month with the most sunshine is August, with an average of 10.3h of sunshine.
What is the driest month in Portland?
The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.89" (48mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 30min of daylight.
Average temperature
Portland, OH
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.6°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure
Portland, OH
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
30"Hg - Average pressure in August:
30.01"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed
Portland, OH
- Average wind speed in January:
6.8mph - Average wind speed in February:
6.8mph - Average wind speed in March:
6.5mph - Average wind speed in April:
6.6mph - Average wind speed in May:
5.7mph - Average wind speed in June:
5.1mph
- Average wind speed in July:
4.4mph - Average wind speed in August:
4.3mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5.4mph - Average wind speed in November:
5.8mph - Average wind speed in December:
6.3mph
The windiest months (with the highest average wind speed) are January and February (6.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity
Portland, OH
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (75%).
Average rainfall
Portland, OH
- Average rainfall in January:
2.6" - Average rainfall in February:
3.39" - Average rainfall in March:
2.99" - Average rainfall in April:
3.62" - Average rainfall in May:
4.02" - Average rainfall in June:
3.03"
- Average rainfall in July:
3.31" - Average rainfall in August:
2.44" - Average rainfall in September:
1.89" - Average rainfall in October:
2.44" - Average rainfall in November:
2.13" - Average rainfall in December:
3.5"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days
Portland, OH
- Average rainfall days in January:
12 days - Average rainfall days in February:
11.6 days - Average rainfall days in March:
15.8 days - Average rainfall days in April:
16.9 days - Average rainfall days in May:
19.4 days - Average rainfall days in June:
18 days
- Average rainfall days in July:
18.8 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
12.6 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
10.8 days - Average rainfall days in December:
13.2 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (10.8 days).
Average snowfall
Portland, OH
- Average snowfall in January:
4.13" - Average snowfall in February:
4.29" - Average snowfall in March:
2.48" - Average snowfall in April:
0.31" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Portland, OH
- Average snowfall days in January:
12.5 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
0.9 days - Average snowfall days in May:
0.1 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:
0.2 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
8.3 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Portland, OH
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
3h and 3min - Average sunshine in February:
4h and 2min - Average sunshine in March:
5h and 5min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
8h and 2min - Average sunshine in October:
6h and 0min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days
Portland, OH
- Average sunshine days in January:
10.2 days - Average sunshine days in February:
9.5 days - Average sunshine days in March:
11.2 days - Average sunshine days in April:
10.5 days - Average sunshine days in May:
9.5 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
10.4 days - Average sunshine days in August:
13.4 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
16.3 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
11.9 days
The month with the most sunshine days is November (17.5 days).
The months with the least sunshine days are February and May (9.5 days).
Average UV index
Portland, OH
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Portland, OH
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Portland, OH
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).