Climate and monthly weather forecastNewcastle, ME
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Newcastle, Maine, with an average temperature ranging between min 18.9°F (-7.3°C) and max 29.8°F (-1.2°C). January stands out as Newcastle's coldest month, with an average high-temperature of 29.8°F (-1.2°C) and a low-temperature of 18.9°F (-7.3°C). Weather in January »Weather in February
February, the last month of the winter in Newcastle, is another freezing cold month, with an average temperature fluctuating between 19.8°F (-6.8°C) and 30.9°F (-0.6°C). Newcastle in February witnesses an average high-temperature of a still subzero cold 30.9°F (-0.6°C), indicating a slight variation from January's 29.8°F (-1.2°C). Weather in February »Weather in March
The first month of the spring, March, is an icy month in Newcastle, Maine, with an average temperature fluctuating between 37.6°F (3.1°C) and 26.1°F (-3.3°C). The shift into March is marked by a modest rise in the average high-temperature, moving from February's freezing cold 30.9°F (-0.6°C) to a cold 37.6°F (3.1°C). Weather in March »Weather in April
April in Newcastle, Maine, is a chilly spring month, with temperature in the range of an average high of 47.8°F (8.8°C) and an average low of 36°F (2.2°C). The start of April brings a rise in the average high-temperature, moving from a wintry 37.6°F (3.1°C) in March to a chilly 47.8°F (8.8°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Newcastle, Maine, with temperature in the range of an average high of 58.3°F (14.6°C) and an average low of 45.1°F (7.3°C). May's arrival coincides with a temperature rise, moving from April's chilly 47.8°F (8.8°C) to a mild 58.3°F (14.6°C). Weather in May »Weather in June
The first month of the summer, June, is an enjoyable month in Newcastle, Maine, with an average temperature varying between 52.7°F (11.5°C) and 65.1°F (18.4°C). The arrival of June brings a soft temperature shift, with the average high-temperature nudging from a refreshing 58.3°F (14.6°C) in May to an enjoyable 65.1°F (18.4°C). Weather in June »Weather in July
July is a pleasant summer month in Newcastle, Maine, with an average temperature ranging between min 59.2°F (15.1°C) and max 72.3°F (22.4°C). As Newcastle transitions into July, the average high-temperature is observed to slightly rise from an enjoyable 65.1°F (18.4°C) in June to a pleasant 72.3°F (22.4°C). Weather in July »Weather in August
The last month of the summer, August, is also an agreeable month in Newcastle, Maine, with temperature in the range of an average high of 72.7°F (22.6°C) and an average low of 58.8°F (14.9°C). The average temperatures reach their apex in August, averaging 72.7°F (22.6°C) at the high end and 58.8°F (14.9°C) at the low end. Weather in August »Weather in September
The first month of the autumn, September, is still a refreshing month in Newcastle, Maine, with an average temperature ranging between max 66.6°F (19.2°C) and min 53.4°F (11.9°C). A mild shift in the average high-temperature occurs in September, reducing from a pleasant 72.7°F (22.6°C) in August to a comfortable 66.6°F (19.2°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Newcastle, Maine, with an average temperature varying between 45.3°F (7.4°C) and 56.1°F (13.4°C). October weather is marked by a drop in the average high-temperature, falling from a refreshing 66.6°F (19.2°C) in September to a moderate 56.1°F (13.4°C). Weather in October »Weather in November
November, the last month of the autumn in Newcastle, is another chilly month, with an average temperature varying between 34.9°F (1.6°C) and 45°F (7.2°C). With the onset of November, Newcastle experiences a modest temperature adjustment, with the average high-temperature receding from a mild 56.1°F (13.4°C) in October to a frosty 45°F (7.2°C). Weather in November »Weather in December
The first month of the winter, December, is also a wintry month in Newcastle, Maine, with an average temperature ranging between max 35.2°F (1.8°C) and min 25.9°F (-3.4°C). The move into December indicates a reduction in the average high-temperature, down from November's frosty 45°F (7.2°C) to a wintry 35.2°F (1.8°C). Weather in December »Updated: Jun 4, 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
Newcastle's coldest weather arrives in January, when temperatures average a high of 29.8°F (-1.2°C) and a low of 18.9°F (-7.3°C).
Throughout the year, there are 144.1 rainfall days, and 29.29" (744mm) of precipitation is accumulated.
January through April, October through December are months with snowfall.
January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 4.37" (111mm) of snow.
Throughout the year, there are 40 snowfall days, and 18.27" (464mm) of snow is accumulated.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
The months with the least sunshine are February and December, with an average of 4.6h of sunshine.
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.
In Newcastle, snow does not fall in May through September.
The months with the highest humidity are June and July, with an average relative humidity of 83%.
With an average of 15h and 24min of daylight, June has the longest days of the year.
The months with the highest UV index are June through August, with an average maximum UV index of 5.
July is the month with the least rainfall. Rain falls for 13.7 days and accumulates 1.57" (40mm) of precipitation.
August is the month when Newcastle experiences its warmest temperatures, averaging a high of 72.7°F (22.6°C) and a low of 58.8°F (14.9°C).
The month with the most sunshine is August, with an average of 10.4h of sunshine.
The least humid month is November, with an average relative humidity of 76%.
December is the month with the most rainfall. Rain falls for 11.4 days and accumulates 3.27" (83mm) of precipitation.
With an average of 9h and 0min of daylight, December has the shortest days of the year.
Average temperature
Newcastle, ME
The warmest month (with the highest average high temperature) is August (72.7°F).
The month with the lowest average high temperature is January (29.8°F).
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Newcastle, ME
- Average pressure in January:
29.96"Hg - Average pressure in February:
29.96"Hg - Average pressure in March:
30.01"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.04"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.03"Hg - Average pressure in December:
30"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Newcastle, ME
- Average wind speed in January:
11.6mph - Average wind speed in February:
11.5mph - Average wind speed in March:
11.5mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.9mph - Average wind speed in October:
9.7mph - Average wind speed in November:
10.4mph - Average wind speed in December:
11mph
The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity
Newcastle, ME
The months with the highest relative humidity are June and July (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall
Newcastle, ME
- Average rainfall in January:
2.44" - Average rainfall in February:
2.2" - Average rainfall in March:
2.28" - Average rainfall in April:
2.99" - Average rainfall in May:
2.24" - Average rainfall in June:
2.52"
- Average rainfall in July:
1.57" - Average rainfall in August:
2.01" - Average rainfall in September:
1.61" - Average rainfall in October:
3.15" - Average rainfall in November:
2.99" - Average rainfall in December:
3.27"
The wettest month (with the highest rainfall) is December (3.27").
The driest month (with the least rainfall) is July (1.57").
Average rainfall days
Newcastle, ME
- Average rainfall days in January:
7.5 days - Average rainfall days in February:
8.7 days - Average rainfall days in March:
11.1 days - Average rainfall days in April:
15.3 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
13.7 days - Average rainfall days in August:
12.1 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
13.4 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
11.4 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (7.5 days).
Average snowfall
Newcastle, ME
The month with the highest snowfall is January (4.37").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Newcastle, ME
- Average snowfall days in January:
9.3 days - Average snowfall days in February:
8.9 days - Average snowfall days in March:
8.3 days - Average snowfall days in April:
2.6 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:
0.1 days - Average snowfall days in November:
2.9 days - Average snowfall days in December:
7.8 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Newcastle, ME
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
5h and 0min - Average sunshine in February:
4h and 36min - Average sunshine in March:
5h and 36min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 0min - Average sunshine in June:
8h and 42min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 30min - Average sunshine in October:
6h and 12min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days
Newcastle, ME
- Average sunshine days in January:
15.9 days - Average sunshine days in February:
12 days - Average sunshine days in March:
13.3 days - Average sunshine days in April:
11.4 days - Average sunshine days in May:
14.1 days - Average sunshine days in June:
14.1 days
- Average sunshine days in July:
15 days - Average sunshine days in August:
16.6 days - Average sunshine days in September:
18.3 days - Average sunshine days in October:
16.1 days - Average sunshine days in November:
15.9 days - Average sunshine days in December:
13.5 days
The month with the most sunshine days is September (18.3 days).
The month with the least sunshine days is April (11.4 days).
Average UV index
Newcastle, ME
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Newcastle, ME
The months with the most cloud cover are February, March, April and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Newcastle, ME
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).
