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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
Weather in January
January, the same as December, in Bristol, New Hampshire, is a freezing cold winter month, with an average temperature ranging between max 25.7°F (-3.5°C) and min 12.7°F (-10.7°C). Bristol reaches its lowest average temperatures in January, measuring 25.7°F (-3.5°C) at the peak and 12.7°F (-10.7°C) at the lowest. Weather in January »
Weather in February
February, the last month of the winter in Bristol, is another freezing cold month, with an average temperature ranging between min 14°F (-10°C) and max 28.6°F (-1.9°C). As January turns into February, the average high-temperatures rest at a still freezing cold 28.6°F (-1.9°C), showing a minor variation from the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a wintry month in Bristol, New Hampshire, with an average temperature varying between 37°F (2.8°C) and 21.9°F (-5.6°C). The onset of March brings a minor temperature shift, with the average high-temperature moving from a freezing cold 28.6°F (-1.9°C) in February to an icy 37°F (2.8°C). Weather in March »
Weather in April
April in Bristol, New Hampshire, is a cool spring month, with temperature in the range of an average low of 32.9°F (0.5°C) and an average high of 50.5°F (10.3°C). The start of April brings a shift in the average high-temperature, increasing from March's wintry 37°F (2.8°C) to a cool 50.5°F (10.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Bristol, New Hampshire, with an average temperature fluctuating between 64.8°F (18.2°C) and 43.5°F (6.4°C). With the onset of May, Bristol sees a temperature rise, with the average high-temperature moving from April's fresh 50.5°F (10.3°C) to a comfortable 64.8°F (18.2°C). Weather in May »
Weather in June
June, the first month of the summer in Bristol, is a pleasant month, with temperature in the range of an average low of 50.7°F (10.4°C) and an average high of 72°F (22.2°C). With the onset of June, Bristol experiences a subtle temperature shift, with the average high-temperature moving from a refreshing 64.8°F (18.2°C) in May to a pleasant 72°F (22.2°C). Weather in June »
Weather in July
July is a moderately hot summer month in Bristol, New Hampshire, with an average temperature fluctuating between 78.6°F (25.9°C) and 57°F (13.9°C). July registers as the month with the highest average temperatures, reaching 78.6°F (25.9°C) at its peak and 57°F (13.9°C) at the lowest. Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Bristol, New Hampshire, with an average temperature fluctuating between 55.2°F (12.9°C) and 76.6°F (24.8°C). The advent of August brings an average high-temperature of a still moderately hot 76.6°F (24.8°C), almost identical to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Bristol, New Hampshire, with temperature in the range of an average low of 49.1°F (9.5°C) and an average high of 68.9°F (20.5°C). September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 76.6°F (24.8°C) to a pleasant 68.9°F (20.5°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Bristol, New Hampshire, with temperature in the range of an average low of 40.3°F (4.6°C) and an average high of 55.8°F (13.2°C). With October's arrival, Bristol's weather changes as the average high-temperature falls from an agreeable 68.9°F (20.5°C) in September to a moderate 55.8°F (13.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cold month in Bristol, New Hampshire, with an average temperature varying between 29.5°F (-1.4°C) and 42.6°F (5.9°C). As October transitions to November, the average high-temperature falls from a mild 55.8°F (13.2°C) to a wintry 42.6°F (5.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also a subzero cold month in Bristol, New Hampshire, with an average temperature varying between 31.3°F (-0.4°C) and 21°F (-6.1°C). In Bristol, the average high-temperature in December drops from a cold 42.6°F (5.9°C) in November to a freezing cold 31.3°F (-0.4°C). Weather in December »
Updated: Jul 18, 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 time of year?
The coldest time of the year is January, with temperatures averaging a high of 25.7°F (-3.5°C) and a low of 12.7°F (-10.7°C).
What are the most humid months?
The months with the highest humidity are January and February, with an average relative humidity of 86%.
How many days does it rain?
Throughout the year, in Bristol, there are 157.6 rainfall days, and 27.72" (704mm) of precipitation is accumulated.
When does it snow?
Months with snowfall in Bristol are January through May, October through December.
How much does it snow?
Throughout the year, there are 64.6 snowfall days, and 35.98" (914mm) of snow is accumulated.
What are the months with the lowest UV index?
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.
When does it snow the most?
February is the month with the most snowfall in Bristol. Snow falls for 13.8 days and accumulates 9.41" (239mm) of snow.
What is the month with the least sunshine?
With an average of 4h of sunshine, February has the least sunshine of the year.
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 least humid month?
The least humid month is April, with an average relative humidity of 75%.
What are the months with the highest UV index in Bristol?
The months with the highest UV index are May through August, with an average maximum UV index of 5.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 24min of daylight.
What is the warmest month?
Bristol's warmest temperatures are experienced in July, with average high temperatures of 78.6°F (25.9°C) and lows of 57°F (13.9°C).
What month has the most sunshine in Bristol?
With an average of 10h of sunshine, August has the most sunshine of the year.
What is the driest month?
The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 1.85" (47mm) of precipitation.
What is the rainiest month?
October is the month with the most rainfall. Rain falls for 14.3 days and accumulates 3.15" (80mm) of precipitation.
What is the month with the shortest days?
With an average of 9h and 0min of daylight, December has the shortest days of the year.
Average temperature
Bristol, NH
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (25.7°F).
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure
Bristol, NH
- Average pressure in January:
30.01"Hg - Average pressure in February:
29.99"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"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:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Bristol, NH
- Average wind speed in January:
7.1mph - Average wind speed in February:
7.1mph - Average wind speed in March:
7mph - Average wind speed in April:
7mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.3mph
- Average wind speed in July:
4.8mph - Average wind speed in August:
4.7mph - Average wind speed in September:
4.8mph - Average wind speed in October:
5.7mph - Average wind speed in November:
6.1mph - Average wind speed in December:
6.6mph
The windiest months (with the highest average wind speed) are January and February (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity
Bristol, NH
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (75%).
Average rainfall
Bristol, NH
- Average rainfall in January:
1.97" - Average rainfall in February:
2.05" - Average rainfall in March:
2.09" - Average rainfall in April:
2.72" - Average rainfall in May:
2.28" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.32" - Average rainfall in August:
1.89" - Average rainfall in September:
1.85" - Average rainfall in October:
3.15" - Average rainfall in November:
2.36" - Average rainfall in December:
2.6"
The wettest month (with the highest rainfall) is October (3.15").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days
Bristol, NH
- Average rainfall days in January:
10.1 days - Average rainfall days in February:
10.5 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
14.9 days - Average rainfall days in August:
14.7 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
14.3 days - Average rainfall days in November:
11.5 days - Average rainfall days in December:
11.3 days
The month with the highest number of rainy days is April (15.7 days).
The month with the least rainy days is January (10.1 days).
Average snowfall
Bristol, NH
- Average snowfall in January:
7.64" - Average snowfall in February:
9.41" - Average snowfall in March:
6.14" - Average snowfall in April:
2.99" - Average snowfall in May:
0.35" - Average snowfall in June:
0"
The month with the highest snowfall is February (9.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Bristol, NH
- Average snowfall days in January:
14.5 days - Average snowfall days in February:
13.8 days - Average snowfall days in March:
13 days - Average snowfall days in April:
4.6 days - Average snowfall days in May:
0.3 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:
1 days - Average snowfall days in November:
5.6 days - Average snowfall days in December:
11.8 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Bristol, NH
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - 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:
4h and 2min - Average sunshine in February:
4h - Average sunshine in March:
5h and 1min - Average sunshine in April:
7h and 2min - Average sunshine in May:
8h and 1min - Average sunshine in June:
8h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h - Average sunshine in September:
8h and 2min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The month with the most sunshine is August (Average sunshine: 10h).
The month with the least sunshine is February (Average sunshine: 4h).
Average sunshine days
Bristol, NH
- Average sunshine days in January:
12.6 days - Average sunshine days in February:
10.2 days - Average sunshine days in March:
10.5 days - Average sunshine days in April:
11.6 days - Average sunshine days in May:
13 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
14 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
13.5 days - Average sunshine days in November:
15.3 days - Average sunshine days in December:
13.3 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is February (10.2 days).
Average UV index
Bristol, NH
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover
Bristol, NH
The months with the most cloud cover are February and March (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility
Bristol, NH
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
Bristol, New Hampshire, USA
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