Climate and monthly weather forecastBath, NH

Climate and monthly weather forecast

Weather in January

January, like December, is a freezing cold winter month in Bath, New Hampshire, with temperature in the range of an average low of 9.9°F (-12.3°C) and an average high of 21.9°F (-5.6°C). January, recording an average high temperature of 21.9°F (-5.6°C) and a low temperature of 9.9°F (-12.3°C), is Bath's coldest month. Weather in January »

Weather in February

February, the last month of the winter in Bath, is another freezing cold month, with an average temperature fluctuating between 25°F (-3.9°C) and 11.3°F (-11.5°C). With the transition into February, Bath notes an average high-temperature of a still freezing cold 25°F (-3.9°C), closely resembling January. Weather in February »

Weather in March

March, the first month of the spring in Bath, is a cold month, with an average temperature ranging between max 33.3°F (0.7°C) and min 18.9°F (-7.3°C). The shift into March is characterized by a subtle rise in the average high-temperature, transitioning from February's subzero cold 25°F (-3.9°C) to a cold 33.3°F (0.7°C). Weather in March »

Weather in April

April in Bath, New Hampshire, is a chilly spring month, with an average temperature varying between 30.6°F (-0.8°C) and 46.4°F (8°C). April witnesses an increase in the average high-temperature, moving from an icy 33.3°F (0.7°C) in March to a frosty 46.4°F (8°C). Weather in April »

Weather in May

May, the last month of the spring in Bath, is an enjoyable month, with an average temperature varying between 42.1°F (5.6°C) and 61.5°F (16.4°C). Bath experiences a noticeable temperature shift with the start of May, with average high-temperatures moving from a chilly 46.4°F (8°C) in April to an enjoyable 61.5°F (16.4°C). Weather in May »

Weather in June

The first month of the summer, June, is a pleasant month in Bath, New Hampshire, with an average temperature fluctuating between 68.5°F (20.3°C) and 49.1°F (9.5°C). With the onset of June, Bath experiences a subtle temperature shift, with the average high-temperature moving from a comfortable 61.5°F (16.4°C) in May to a pleasant 68.5°F (20.3°C). Weather in June »

Weather in July

July is a warm summer month in Bath, New Hampshire, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 55°F (12.8°C). The highest temperatures are recorded in July, with averages reaching a high of 75°F (23.9°C) and a low of 55°F (12.8°C). Weather in July »

Weather in August

The last month of the summer, August, is another pleasant month in Bath, New Hampshire, with an average temperature varying between 53.2°F (11.8°C) and 73°F (22.8°C). August's weather displays an average high-temperature of a pleasant 73°F (22.8°C), slightly varied from July's 75°F (23.9°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a comfortable month in Bath, New Hampshire, with an average temperature ranging between min 46.9°F (8.3°C) and max 66.2°F (19°C). The start of September involves a subtle temperature drop, shifting from a pleasant 73°F (22.8°C) in August to a refreshing 66.2°F (19°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Bath, New Hampshire, with an average temperature fluctuating between 38.1°F (3.4°C) and 51.8°F (11°C). Bath's transition into October is marked by a distinct drop in the average high-temperature, reducing from an enjoyable 66.2°F (19°C) in September to a fresh 51.8°F (11°C). Weather in October »

Weather in November

November, the last month of the autumn in Bath, is also a wintry month, with an average temperature varying between 38.7°F (3.7°C) and 27.1°F (-2.7°C). The start of November signals a decrease in the average high-temperature, transitioning from a cool 51.8°F (11°C) in October to an icy 38.7°F (3.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Bath, New Hampshire, with an average temperature ranging between max 27.5°F (-2.5°C) and min 17.8°F (-7.9°C). With December's arrival, Bath sees a decrease in average high-temperatures, moving from a wintry 38.7°F (3.7°C) in November to a freezing cold 27.5°F (-2.5°C). Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

January is the month that records the lowest temperatures, with averages ranging from a high of 21.9°F (-5.6°C) to a low of 9.9°F (-12.3°C).

January and February, with an average relative humidity of 89%, are most humid months in Bath.

In Bath, during the entire year, the rain falls for 121.7 days and collects up to 10.83" (275mm) of precipitation.

Months with snowfall are January through May, October through December.

The month with the most snowfall is January, when snow falls for 20.4 days and typically aggregates up to 3.98" (101mm) of snow.

Throughout the year, there are 106.5 snowfall days, and 21.34" (542mm) of snow is accumulated.

The months with the lowest UV index are January, February and December, with an average maximum UV index of 1.

The months with the least rainfall in Bath are February and March Rain falls for 6.6 days and accumulates 0.67" (17mm) of rain.

With an average of 3h of sunshine, February has the least sunshine of the year in Bath, New Hampshire.

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.

With an average relative humidity of 77%, May is the least humid month in Bath.

The wettest months in Bath, New Hampshire, are June and July, with an average 1.18" (30mm) of rainfall.

In Bath, New Hampshire, snow does not fall in June through September.

The month with the longest days in Bath, New Hampshire, is June, with an average of 15h and 30min of daylight.

June through August, with an average maximum UV index of 5, are months with the highest UV index in Bath, New Hampshire.

Bath witnesses the warmest weather in July, with temperatures averaging a high of 75°F (23.9°C) and a low of 55°F (12.8°C).

With an average of 9.8h of sunshine, August has the most sunshine of the year in Bath, New Hampshire.

December has the shortest days of the year, with an average of 8h and 54min of daylight.

Average temperature
Bath, NH

The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (21.9°F).

The month with the highest average low temperature is July (55°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure
Bath, NH

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Bath, NH

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity
Bath, NH

The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (77%).

Average rainfall
Bath, NH

The wettest months (with the highest rainfall) are June and July (1.18").
The driest months (with the least rainfall) are February and March (0.67").

Average rainfall days
Bath, NH

The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is January (6.2 days).

Average snowfall
Bath, NH

The month with the highest snowfall is January (3.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Bath, NH

The month with the highest number of snowfall days is January (20.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Bath, NH

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).

Average sunshine days
Bath, NH

The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is February (8.5 days).

Average UV index
Bath, NH

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 and December (UV index 1).

Average cloud cover
Bath, NH

The month with the most cloud cover is February (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility
Bath, NH

The months with the highest visibility are May, June, July and November (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October and December (4mi).