Climate and monthly weather forecastPortage, ME
Portage, Maine, USA - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data. The month with the most snowfall is January, when snow falls for 18.9 days and typically aggregates up to 15.2" (386mm) of snow. The month with the least rainfall is February, when the rain falls for 4.8 days and typically collects 2.2" (56mm) of precipitation.
Climate and monthly weather forecast
Weather in January
January, the same as December, in Portage, Maine, is a freezing cold winter month, with temperature in the range of an average high of 19.8°F (-6.8°C) and an average low of 5.4°F (-14.8°C). With average high and low temperatures of 19.8°F (-6.8°C) and 5.4°F (-14.8°C) respectively, January is Portage's coldest month. Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Portage, Maine, with an average temperature ranging between min 6.3°F (-14.3°C) and max 21.9°F (-5.6°C). A minor adjustment in Portage's average high-temperature is noted with the start of February, touching a still freezing cold 21.9°F (-5.6°C) from January's 19.8°F (-6.8°C). Weather in February »Weather in March
The first month of the spring, March, is also a subzero cold month in Portage, Maine, with an average temperature ranging between max 29.5°F (-1.4°C) and min 13.8°F (-10.1°C). March's arrival coincides with a subtle temperature rise, moving from February's 21.9°F (-5.6°C) to a still freezing cold 29.5°F (-1.4°C). Weather in March »Weather in April
April in Portage, Maine, is a frosty spring month, with an average temperature fluctuating between 43.9°F (6.6°C) and 27.9°F (-2.3°C). The arrival of April signals a clear increase in the average high-temperature, soaring from a freezing cold 29.5°F (-1.4°C) in March to a chilly 43.9°F (6.6°C). Weather in April »Weather in May
The last month of the spring, May, is a moderate month in Portage, Maine, with an average temperature varying between 60.1°F (15.6°C) and 40.8°F (4.9°C). The shift into May brings a noticeable increase in the average high-temperature, soaring from a frosty 43.9°F (6.6°C) in April to a refreshing 60.1°F (15.6°C). Weather in May »Weather in June
June, the first month of the summer in Portage, is a pleasant month, with an average temperature ranging between max 68°F (20°C) and min 48.4°F (9.1°C). With the onset of June, Portage's average high-temperature sees a modest rise, moving from May's refreshing 60.1°F (15.6°C) to an agreeable 68°F (20°C). Weather in June »Weather in July
July in Portage, Maine, is a moderately hot summer month, with an average temperature ranging between max 75.2°F (24°C) and min 54.9°F (12.7°C). Portage's temperature records reveal July as the warmest month, marked by average highs of 75.2°F (24°C) and lows of 54.9°F (12.7°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Portage, Maine, with an average temperature ranging between min 53.4°F (11.9°C) and max 73.9°F (23.3°C). The onset of August marks an average high-temperature of a still warm 73.9°F (23.3°C), hardly differing from July's 75.2°F (24°C). Weather in August »Weather in September
September, the first month of the autumn in Portage, is still a refreshing month, with an average temperature varying between 65.3°F (18.5°C) and 46°F (7.8°C). September marks a gentle change in average high-temperature, declining from August's moderately hot 73.9°F (23.3°C) to a refreshing 65.3°F (18.5°C). Weather in September »Weather in October
October, like September, in Portage, Maine, is another fresh autumn month, with an average temperature varying between 37.2°F (2.9°C) and 51.4°F (10.8°C). October brings a drop in Portage's average high-temperature, falling from a comfortable 65.3°F (18.5°C) in September to a fresh 51.4°F (10.8°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Portage, Maine, with temperature in the range of an average high of 37.6°F (3.1°C) and an average low of 26.6°F (-3°C). A moderate decline in the average high-temperature is seen during November, decreasing from a fresh 51.4°F (10.8°C) in October to an icy 37.6°F (3.1°C). Weather in November »Weather in December
December, the first month of the winter in Portage, is still a freezing cold month, with an average temperature varying between 25.7°F (-3.5°C) and 13.6°F (-10.2°C). Portage's weather changes with the onset of December, slightly falling from a cold 37.6°F (3.1°C) in November to a freezing cold 25.7°F (-3.5°C). Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Portage, ME
The warmest month (with the highest average high temperature) is July (75.2°F).
The month with the lowest average high temperature is January (19.8°F).
The month with the highest average low temperature is July (54.9°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure
Portage, ME
- Average pressure in January:
29.94"Hg - Average pressure in February:
29.94"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
30"Hg
The month with the highest atmospheric pressure is September (30.02"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Portage, ME
- Average wind speed in January:
8.2mph - Average wind speed in February:
8.2mph - Average wind speed in March:
8.2mph - Average wind speed in April:
8.1mph - Average wind speed in May:
7.8mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
6.9mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8mph - Average wind speed in December:
7.8mph
The windiest months (with the highest average wind speed) are January, February and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Portage, ME
The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is May (75%).
Average rainfall
Portage, ME
- Average rainfall in January:
2.68" - Average rainfall in February:
2.2" - Average rainfall in March:
2.44" - Average rainfall in April:
3.15" - Average rainfall in May:
2.72" - Average rainfall in June:
2.68"
- Average rainfall in July:
2.76" - Average rainfall in August:
2.44" - Average rainfall in September:
2.32" - Average rainfall in October:
2.76" - Average rainfall in November:
2.8" - Average rainfall in December:
3.19"
The wettest month (with the highest rainfall) is December (3.19").
The driest month (with the least rainfall) is February (2.2").
Average rainfall days
Portage, ME
- Average rainfall days in January:
5 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
16.8 days - Average rainfall days in September:
13.7 days - Average rainfall days in October:
14.7 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (4.8 days).
Average snowfall
Portage, ME
- Average snowfall in January:
15.2" - Average snowfall in February:
11.85" - Average snowfall in March:
12.05" - Average snowfall in April:
7.44" - Average snowfall in May:
0.63" - Average snowfall in June:
0"
The month with the highest snowfall is January (15.2").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Portage, ME
- Average snowfall days in January:
18.9 days - Average snowfall days in February:
20.7 days - Average snowfall days in March:
19.7 days - Average snowfall days in April:
10.3 days - Average snowfall days in May:
0.9 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:
2.1 days - Average snowfall days in November:
9.2 days - Average snowfall days in December:
16.9 days
The month with the highest number of snowfall days is February (20.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Portage, ME
- Average daylight in January:
9h and 0min - Average daylight in February:
10h and 18min - Average daylight in March:
11h and 54min - 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 6min - 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:
2h and 36min - Average sunshine in February:
2h and 6min - Average sunshine in March:
3h and 12min - Average sunshine in April:
5h and 24min - Average sunshine in May:
7h and 24min - Average sunshine in June:
8h and 12min
- Average sunshine in July:
9h and 24min - Average sunshine in August:
9h and 30min - Average sunshine in September:
7h and 18min - Average sunshine in October:
5h and 30min - Average sunshine in November:
4h and 0min - Average sunshine in December:
3h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days
Portage, ME
- Average sunshine days in January:
11.4 days - Average sunshine days in February:
7.9 days - Average sunshine days in March:
8.5 days - Average sunshine days in April:
8.4 days - Average sunshine days in May:
11.9 days - Average sunshine days in June:
11.9 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
12.6 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
13 days - Average sunshine days in November:
13.8 days - Average sunshine days in December:
11.4 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is February (7.9 days).
Average UV index
Portage, ME
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover
Portage, ME
The month with the most cloud cover is February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility
Portage, ME
The months with the highest visibility are May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
