Climate and monthly weather forecastBristol, ME
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Bristol, Maine, with an average temperature ranging between min 18°F (-7.8°C) and max 29.7°F (-1.3°C). Temperature records mark January as the coldest month, with highs averaging 29.7°F (-1.3°C) and lows at 18°F (-7.8°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Bristol, Maine, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 19°F (-7.2°C). Bristol experiences an average high-temperature of a still subzero cold 31.5°F (-0.3°C) in February, marking an insignificant shift from 29.7°F (-1.3°C) in January. Weather in February »Weather in March
The first month of the spring, March, is a wintry month in Bristol, Maine, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 26.1°F (-3.3°C). Bristol's transition into March is noticed by a slight rise in the average high-temperature, advancing from a subzero cold 31.5°F (-0.3°C) in February to a cold 37.9°F (3.3°C). Weather in March »Weather in April
April is a chilly spring month in Bristol, Maine, with temperature in the range of an average high of 49.1°F (9.5°C) and an average low of 36.1°F (2.3°C). April brings a temperature increase, with average high-temperatures moving from March's cold 37.9°F (3.3°C) to a frosty 49.1°F (9.5°C). Weather in April »Weather in May
The last month of the spring, May, is a mild month in Bristol, Maine, with an average temperature varying between 45.5°F (7.5°C) and 59.4°F (15.2°C). With the transition into May, Bristol experiences an increase in average high-temperatures, moving up from a frosty 49.1°F (9.5°C) in April to a mild 59.4°F (15.2°C). Weather in May »Weather in June
June, the first month of the summer in Bristol, is an enjoyable month, with an average temperature fluctuating between 66.7°F (19.3°C) and 52.7°F (11.5°C). In Bristol, stepping into June brings a gentle temperature nudge, moving slightly up from May's mild 59.4°F (15.2°C) to an enjoyable 66.7°F (19.3°C). Weather in June »Weather in July
July is a warm summer month in Bristol, Maine, with an average temperature ranging between max 74.1°F (23.4°C) and min 59.5°F (15.3°C). July and August mark Bristol's peak of temperatures, averaging a high-temperature of 74.1°F (23.4°C). Weather in July »Weather in August
August, the last month of the summer in Bristol, is another warm month, with an average temperature ranging between max 74.1°F (23.4°C) and min 59.2°F (15.1°C). The yearly peak temperatures occur in July and August, averaging a high-temperature of 74.1°F (23.4°C). Weather in August »Weather in September
September, the first month of the autumn in Bristol, is also an enjoyable month, with an average temperature varying between 53.6°F (12°C) and 67.5°F (19.7°C). September is marked by a subtle drop in average high-temperatures, transitioning from a warm 74.1°F (23.4°C) in August to a comfortable 67.5°F (19.7°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Bristol, Maine, with an average temperature fluctuating between 56.3°F (13.5°C) and 45°F (7.2°C). With the onset of October, Bristol experiences a modest temperature adjustment, with the average high-temperature receding from 67.5°F (19.7°C) in September to a still refreshing 56.3°F (13.5°C). Weather in October »Weather in November
November, the last month of the autumn in Bristol, is also a frosty month, with an average temperature fluctuating between 45.5°F (7.5°C) and 34.5°F (1.4°C). With November's arrival, Bristol's weather changes as the average high-temperature falls from a mild 56.3°F (13.5°C) in October to a frosty 45.5°F (7.5°C). Weather in November »Weather in December
December, the first month of the winter in Bristol, is also a wintry month, with an average temperature ranging between min 25.3°F (-3.7°C) and max 35.2°F (1.8°C). Setting in of December comes with a decrease in the average high-temperature, moving from a frosty 45.5°F (7.5°C) in November to a wintry 35.2°F (1.8°C). Weather in December »Updated: Aug 12, 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
Bristol witnesses the coldest weather in January, with temperatures averaging a high of 29.7°F (-1.3°C) and a low of 18°F (-7.8°C).
Throughout the year, there are 142.1 rainfall days, and 30.51" (775mm) of precipitation is accumulated.
Months with snowfall are January through May, November and December.
The month with the most snowfall is January, when snow falls for 9.2 days and typically aggregates up to 5.28" (134mm) of snow.
Throughout the year, in Bristol, there are 40 snowfall days, and 20.08" (510mm) of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
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.
June and July, with an average relative humidity of 82%, are most humid months in Bristol.
June through October are months without snowfall in Bristol, Maine.
The month with the longest days is June, with an average of 15h and 24min of daylight.
The warmest period falls in July and August, when the average high-temperature reaches 74.1°F (23.4°C).
With an average maximum UV index of 6, July is the month with the highest UV index.
The month with the most sunshine is August, with an average of 10.3h of sunshine.
The month with the least rainfall in Bristol is September, when the rain falls for 10.8 days and typically collects 1.5" (38mm) of precipitation.
November is the least humid month, with an average relative humidity of 76%.
The month with the most rainfall is December, when the rain falls for 10.8 days and typically aggregates up to 3.5" (89mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 0min of daylight.
Average temperature
Bristol, ME
The warmest months (with the highest average high temperature) are July and August (74.1°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure
Bristol, ME
- Average pressure in January:
29.97"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:
30.04"Hg - Average pressure in December:
30.01"Hg
The months with the highest atmospheric pressure are September and November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Bristol, ME
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.6mph - Average wind speed in April:
9.6mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.5mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.5mph - Average wind speed in December:
10mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Bristol, ME
The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is November (76%).
Average rainfall
Bristol, ME
- Average rainfall in January:
2.44" - Average rainfall in February:
2.32" - Average rainfall in March:
2.44" - Average rainfall in April:
3.07" - Average rainfall in May:
2.24" - Average rainfall in June:
2.48"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Bristol, ME
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
7.4 days - Average rainfall days in March:
11 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
14.3 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
12.5 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
11.1 days - Average rainfall days in December:
10.8 days
The month with the highest number of rainy days is April (15.1 days).
The month with the least rainy days is January (6.6 days).
Average snowfall
Bristol, ME
- Average snowfall in January:
5.28" - Average snowfall in February:
4.45" - Average snowfall in March:
3.74" - Average snowfall in April:
1.54" - Average snowfall in May:
0.16" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.28").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days
Bristol, ME
- Average snowfall days in January:
9.2 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
8.5 days - Average snowfall days in April:
2.7 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 days
The month with the highest number of snowfall days is February (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Bristol, 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:
13h and 54min - 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 30min - Average sunshine in April:
7h and 36min - Average sunshine in May:
8h and 0min - Average sunshine in June:
8h and 36min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
10h and 18min - Average sunshine in September:
8h and 24min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days
Bristol, ME
- Average sunshine days in January:
16.7 days - Average sunshine days in February:
13.1 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
14.4 days - Average sunshine days in June:
13.6 days
- Average sunshine days in July:
15.3 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
15.3 days - Average sunshine days in November:
16.4 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.7 days).
Average UV index
Bristol, ME
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Bristol, ME
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Bristol, ME
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
