Climate and monthly weather forecast
Jacksonville, NY

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Weather in January

January, the same as December, in Jacksonville, New York, is a freezing cold winter month, with an average temperature ranging between max 28.2°F (-2.1°C) and min 16.7°F (-8.5°C). The month of January, characterized by an average high of 28.2°F (-2.1°C) and a low of 16.7°F (-8.5°C), is recognized as the coldest. Weather in January »

Weather in February

The last month of the winter, February, is another freezing cold month in Jacksonville, New York, with an average temperature ranging between max 31.1°F (-0.5°C) and min 18°F (-7.8°C). Jacksonville's shift into February sets the average high-temperature at a still freezing cold 31.1°F (-0.5°C), a figure that deviates only slightly from January's 28.2°F (-2.1°C). Weather in February »

Weather in March

The first month of the spring, March, is a wintry month in Jacksonville, New York, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 40.1°F (4.5°C). As March begins, there is an increase in the average high-temperature, moving from a subzero cold 31.1°F (-0.5°C) in February to an icy 40.1°F (4.5°C). Weather in March »

Weather in April

April in Jacksonville, New York, is a fresh spring month, with temperature in the range of an average high of 53.1°F (11.7°C) and an average low of 35.4°F (1.9°C). The shift from March to April brings an increase in the average high-temperature, moving from a cold 40.1°F (4.5°C) to a fresh 53.1°F (11.7°C). Weather in April »

Weather in May

May, the last month of the spring in Jacksonville, is a refreshing month, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 46.6°F (8.1°C). The shift from April to May sees an increase in the average high-temperature, transitioning from a fresh 53.1°F (11.7°C) to an enjoyable 66.7°F (19.3°C). Weather in May »

Weather in June

June, the first month of the summer in Jacksonville, is a pleasant month, with an average temperature ranging between max 73.2°F (22.9°C) and min 52.5°F (11.4°C). The commencement of June sees a minor shift in the average high-temperature, moving from a comfortable 66.7°F (19.3°C) in May to a pleasant 73.2°F (22.9°C). Weather in June »

Weather in July

July is a warm summer month in Jacksonville, New York, with an average temperature fluctuating between 79.2°F (26.2°C) and 58.3°F (14.6°C). July brings the highest temperatures, with an average high of 79.2°F (26.2°C) and an average low of 58.3°F (14.6°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Jacksonville, New York, with an average temperature varying between 56.1°F (13.4°C) and 77°F (25°C). Jacksonville observes an average high-temperature of a still warm 77°F (25°C) in August, barely different from 79.2°F (26.2°C) in July. Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Jacksonville, New York, with an average temperature varying between 50.7°F (10.4°C) and 70.7°F (21.5°C). The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a warm 77°F (25°C) in August to a pleasant 70.7°F (21.5°C). Weather in September »

Weather in October

October, the same as September, in Jacksonville, New York, is another refreshing autumn month, with an average temperature ranging between max 57.4°F (14.1°C) and min 42.4°F (5.8°C). In October, the average high-temperature decreases from a pleasant 70.7°F (21.5°C) in September to a moderate 57.4°F (14.1°C). Weather in October »

Weather in November

November, the last month of the autumn in Jacksonville, is also a frosty month, with an average temperature ranging between min 31.8°F (-0.1°C) and max 44.4°F (6.9°C). November's arrival comes with a decrease in the average high-temperature, moving from a refreshing 57.4°F (14.1°C) in October to a chilly 44.4°F (6.9°C). Weather in November »

Weather in December

December, the first month of the winter in Jacksonville, is also a wintry month, with an average temperature varying between 24.8°F (-4°C) and 34°F (1.1°C). The onset of December coincides with a reduction in the average high-temperature, falling from a chilly 44.4°F (6.9°C) in November to a wintry 34°F (1.1°C). Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Jacksonville?

January is the coldest month of the year, registering average temperatures as high as 28.2°F (-2.1°C) and as low as 16.7°F (-8.5°C).

What is the driest month in Jacksonville?

January is the month with the least rainfall. Rain falls for 6.8 days and accumulates 1.93" (49mm) of precipitation.

How much does it rain in Jacksonville?

Throughout the year, there are 167.1 rainfall days, and 31.65" (804mm) of precipitation is accumulated.

When does it snow in Jacksonville?

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

How many days does it snow in Jacksonville?

In Jacksonville, during the entire year, snow falls for 83.4 days and aggregates up to 34.65" (880mm) of snow.

What are the months with the lowest UV index in Jacksonville?

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

What is the most humid month in Jacksonville?

The most humid month in Jacksonville is February, with an average relative humidity of 87%.

When does it snow the most in Jacksonville?

February is the month with the most snowfall in Jacksonville, New York. Snow falls for 18.4 days and accumulates 8.11" (206mm) of snow.

What is the month with the least sunshine in Jacksonville?

February has the least sunshine of the year, with an average of 2.6h of sunshine.

When is Daylight Saving Time (DST) in Jacksonville?

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 in Jacksonville?

April is the least humid month, with an average relative humidity of 78%.

What is the wettest month in Jacksonville?

June is the month with the most rainfall in Jacksonville. Rain falls for 17.4 days and accumulates 3.43" (87mm) of precipitation.

When it does not snow in Jacksonville?

In Jacksonville, New York, snow does not fall in June through September.

When are the longest days in Jacksonville?

The month with the longest days in Jacksonville is June, with an average of 15h and 12min of daylight.

What month is the hottest in Jacksonville?

Jacksonville's temperatures peak on average in July, reaching 79.2°F (26.2°C) at their highest and 58.3°F (14.6°C) at their lowest.

What month has the most sunshine in Jacksonville?

July has the most sunshine of the year, with an average of 10.2h of sunshine.

When is the highest UV index in Jacksonville?

The month with the highest UV index is July, with an average maximum UV index of 6.

What is the month with the shortest days in Jacksonville?

December has the shortest days of the year, with an average of 9h and 6min of daylight.

Average temperature
Jacksonville, NY

Average temperature - Jacksonville, NY

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).

The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure
Jacksonville, NY

Average pressure - Jacksonville, NY

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed
Jacksonville, NY

Average wind speed - Jacksonville, NY

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity
Jacksonville, NY

Average humidity - Jacksonville, NY

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).

Average rainfall
Jacksonville, NY

Average rainfall - Jacksonville, NY

The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days
Jacksonville, NY

Average rainfall days - Jacksonville, NY

The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (6.8 days).

Average snowfall
Jacksonville, NY

Average snowfall - Jacksonville, NY

The month with the highest snowfall is February (8.11").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days
Jacksonville, NY

Average snowfall days - Jacksonville, NY

The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Jacksonville, NY

Average daylight / Average sunshine - Jacksonville, NY

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).

Average sunshine days
Jacksonville, NY

Average sunshine days - Jacksonville, NY

The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (5.8 days).

Average cloud cover
Jacksonville, NY

Average cloud cover - Jacksonville, NY

The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 36).

Jacksonville, New York, USA

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