Climate and monthly weather forecastPortland, AR
Climate and monthly weather forecast
Weather in January
January, the same as December, is a cool winter month in Portland, Arkansas, with an average temperature ranging between min 38.1°F (3.4°C) and max 51.6°F (10.9°C). January, recording an average high temperature of 51.6°F (10.9°C) and a low temperature of 38.1°F (3.4°C), is Portland's coldest month. Weather in January »Weather in February
The last month of the winter, February, is a mild month in Portland, Arkansas, with an average temperature ranging between min 41.9°F (5.5°C) and max 55.8°F (13.2°C). As January turns into February, the average high-temperatures rest at a moderate 55.8°F (13.2°C), showing a minor variation from the prior month. Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Portland, Arkansas, with an average temperature varying between 48.7°F (9.3°C) and 64.4°F (18°C). Portland in March experiences a slight uptick in the average high-temperature, adjusting from February's moderate 55.8°F (13.2°C) to an enjoyable 64.4°F (18°C). Weather in March »Weather in April
April is an agreeable spring month in Portland, Arkansas, with an average temperature varying between 55.9°F (13.3°C) and 73°F (22.8°C). A subtle rise in the average high-temperature is observed during April, adjusting from a refreshing 64.4°F (18°C) in March to an agreeable 73°F (22.8°C). Weather in April »Weather in May
May, the last month of the spring in Portland, is a warm month, with an average temperature varying between 64.8°F (18.2°C) and 81.5°F (27.5°C). With the onset of May, the average high-temperature subtly transitions from an agreeable 73°F (22.8°C) in April to a moderately hot 81.5°F (27.5°C). Weather in May »Weather in June
The first month of the summer, June, is a tropical month in Portland, Arkansas, with an average temperature ranging between max 89.1°F (31.7°C) and min 72.1°F (22.3°C). June's onset witnesses a minor shift in the average high-temperature, moving from a moderately hot 81.5°F (27.5°C) in May to a hot 89.1°F (31.7°C). Weather in June »Weather in July
July, the same as June, in Portland, Arkansas, is a hot summer month, with an average temperature varying between 90.7°F (32.6°C) and 73.6°F (23.1°C). July is the month when Portland sees the highest average temperatures, with a high of 90.7°F (32.6°C) and a low of 73.6°F (23.1°C). July's average heat index is computed to be a blisteringly hot 111.2°F (44°C). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Portland, Arkansas, with an average temperature fluctuating between 72.3°F (22.4°C) and 89.6°F (32°C). As Portland welcomes August, the average high-temperature stabilizes at a still tropical 89.6°F (32°C), showing little deviation from July's 90.7°F (32.6°C). Weather in August »Weather in September
The first month of the autumn, September, is still a tropical month in Portland, Arkansas, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 86°F (30°C). The shift to September signals an average high-temperature of a still tropical 86°F (30°C), subtly varied from August's 89.6°F (32°C). Weather in September »Weather in October
October, the same as September, is another warm autumn month in Portland, Arkansas, with an average temperature varying between 57.2°F (14°C) and 75.6°F (24.2°C). Observing a mild shift, the average high-temperature during October reduces from September's tropical 86°F (30°C) to a warm 75.6°F (24.2°C). Weather in October »Weather in November
November, the last month of the autumn in Portland, is another comfortable month, with temperature in the range of an average high of 62.8°F (17.1°C) and an average low of 47.3°F (8.5°C). With November's arrival, Portland's weather changes as the average high-temperature falls from a moderately hot 75.6°F (24.2°C) in October to a refreshing 62.8°F (17.1°C). Weather in November »Weather in December
The first month of the winter, December, is still a cool month in Portland, Arkansas, with an average temperature varying between 41.9°F (5.5°C) and 54.5°F (12.5°C). A moderate decline in average high-temperatures is noted in December, moving from a comfortable 62.8°F (17.1°C) in November to a fresh 54.5°F (12.5°C). Weather in December »Updated: Aug 8, 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, marked by an average high-temperature of 51.6°F (10.9°C) and a low-temperature of 38.1°F (3.4°C), is the coldest month.
Throughout the year, there are 158.8 rainfall days, and 40.67" (1033mm) of precipitation is accumulated.
Months with snowfall are January through March and November.
In Portland, Arkansas, during the entire year, snow falls for 2.7 days and aggregates up to 0.75" (19mm) of snow.
The months with the lowest UV index are January and December, with an average maximum UV index of 3.
February and March, with an average relative humidity of 79%, are most humid months.
February is the month with the most snowfall. Snow falls for 1.2 days and accumulates 0.43" (11mm) of snow.
The month with the least sunshine is February, with an average of 4.8h of sunshine.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
April is the month with the most rainfall. Rain falls for 13.7 days and accumulates 4.49" (114mm) of precipitation.
In Portland, snow does not fall in April through October and December.
The month with the longest days in Portland is June, with an average of 14h and 18min of daylight.
June has the most sunshine of the year, with an average of 10.8h of sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 7.
Portland records the warmest temperatures in July, averaging a high of 90.7°F (32.6°C) and a low of 73.6°F (23.1°C).
October is the least humid month, with an average relative humidity of 67%.
November is the month with the least rainfall. Rain falls for 9.8 days and accumulates 2.44" (62mm) of precipitation.
December has the shortest days of the year, with an average of 10h and 0min of daylight.
Average temperature
Portland, AR
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (51.6°F).
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure
Portland, AR
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.98"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
29.99"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Portland, AR
- Average wind speed in January:
9.3mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.4mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.3mph - Average wind speed in November:
8mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity
Portland, AR
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is October (67%).
Average rainfall
Portland, AR
- Average rainfall in January:
3.39" - Average rainfall in February:
3.94" - Average rainfall in March:
3.94" - Average rainfall in April:
4.49" - Average rainfall in May:
3.35" - Average rainfall in June:
3.03"
- Average rainfall in July:
3.31" - Average rainfall in August:
2.83" - Average rainfall in September:
2.72" - Average rainfall in October:
3.58" - Average rainfall in November:
2.44" - Average rainfall in December:
3.66"
The wettest month (with the highest rainfall) is April (4.49").
The driest month (with the least rainfall) is November (2.44").
Average rainfall days
Portland, AR
- Average rainfall days in January:
12.1 days - Average rainfall days in February:
11.5 days - Average rainfall days in March:
15.3 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
15.1 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
16.7 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
12.8 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
12.5 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (9.3 days).
Average snowfall
Portland, AR
The month with the highest snowfall is February (0.43").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days
Portland, AR
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
1.2 days - Average snowfall days in March:
0.3 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:
0.4 days - Average snowfall days in December:
0 days
The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and December (0 days).
Average daylight / Average sunshine
Portland, AR
- Average daylight in January:
10h and 12min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 54min - Average daylight in June:
14h and 18min
- Average daylight in July:
14h and 6min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 18min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 12min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 54min - Average sunshine in April:
9h and 24min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 54min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 48min - Average sunshine in December:
5h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days
Portland, AR
- Average sunshine days in January:
17.5 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
14.2 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
13.5 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
13 days - Average sunshine days in September:
14.8 days - Average sunshine days in October:
19.6 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
16.9 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is July (12 days).
Average UV index
Portland, AR
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover
Portland, AR
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility
Portland, AR
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
