Climate and monthly weather forecast
Hartsdale, NY

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Weather in January

January, the same as December, is an icy winter month in Hartsdale, New York, with temperature in the range of an average high of 35.2°F (1.8°C) and an average low of 23.9°F (-4.5°C). Hartsdale witnesses the coldest weather in January, with temperatures averaging a high of 35.2°F (1.8°C) and a low of 23.9°F (-4.5°C). Weather in January »

Weather in February

February, the last month of the winter in Hartsdale, is another cold month, with an average temperature ranging between max 38.1°F (3.4°C) and min 25.5°F (-3.6°C). The introduction of February notes a subtle temperature variation to a still wintry 38.1°F (3.4°C) from January's 35.2°F (1.8°C). Weather in February »

Weather in March

March, the first month of the spring in Hartsdale, is a chilly month, with temperature in the range of an average low of 32.5°F (0.3°C) and an average high of 45.9°F (7.7°C). The shift from February to March is marked by a slight increase in the average high-temperature, moving from an icy 38.1°F (3.4°C) to a frosty 45.9°F (7.7°C). Weather in March »

Weather in April

April is a mild spring month in Hartsdale, New York, with an average temperature ranging between min 42.4°F (5.8°C) and max 58.1°F (14.5°C). With the onset of April, Hartsdale sees a temperature rise, with the average high-temperature moving from March's chilly 45.9°F (7.7°C) to a mild 58.1°F (14.5°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Hartsdale, New York, with an average temperature ranging between max 68.9°F (20.5°C) and min 52.2°F (11.2°C). Hartsdale's May weather brings a rise in high-temperatures, moving from a mild 58.1°F (14.5°C) in April to a pleasant 68.9°F (20.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Hartsdale, New York, with an average temperature ranging between min 60.3°F (15.7°C) and max 77.5°F (25.3°C). June brings a slight rise in Hartsdale's average high-temperature, moving from an agreeable 68.9°F (20.5°C) in May to a warm 77.5°F (25.3°C). Weather in June »

Weather in July

July, like June, in Hartsdale, New York, is a moderately hot summer month, with an average temperature fluctuating between 84.4°F (29.1°C) and 67.5°F (19.7°C). July, recognised by an average high temperature of 84.4°F (29.1°C) and a low of 67.5°F (19.7°C), is Hartsdale's warmest month. During July, the heat index is estimated at a hot 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Hartsdale, is also a moderately hot month, with an average temperature varying between 66.2°F (19°C) and 82.6°F (28.1°C). As August takes its course, Hartsdale's average high-temperature registers at a still moderately hot 82.6°F (28.1°C), closely aligning with the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Hartsdale, is still a warm month, with temperature in the range of an average low of 59.5°F (15.3°C) and an average high of 75.2°F (24°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a moderately hot 82.6°F (28.1°C) in August to a still warm 75.2°F (24°C). Weather in September »

Weather in October

October, like September, in Hartsdale, New York, is another enjoyable autumn month, with an average temperature fluctuating between 62.6°F (17°C) and 49.5°F (9.7°C). The start of October signals a decrease in the average high-temperature, transitioning from a moderately hot 75.2°F (24°C) in September to a refreshing 62.6°F (17°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a fresh month in Hartsdale, New York, with an average temperature ranging between max 50.5°F (10.3°C) and min 38.3°F (3.5°C). Hartsdale's weather in November involves a decrease in the average high-temperature, moving down from October's comfortable 62.6°F (17°C) to a fresh 50.5°F (10.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Hartsdale, New York, with an average temperature ranging between max 41°F (5°C) and min 30.9°F (-0.6°C). In December, the average high-temperature goes from a fresh 50.5°F (10.3°C) in November to a wintry 41°F (5°C). Weather in December »
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Hartsdale?

In Hartsdale, January is the month with the lowest recorded average temperatures, measuring a high of 35.2°F (1.8°C) and a low of 23.9°F (-4.5°C).

How many days does it rain in Hartsdale?

In Hartsdale, New York, during the entire year, the rain falls for 132.4 days and collects up to 15.63" (397mm) of precipitation.

When does it snow in Hartsdale?

January through April, October through December are months with snowfall in Hartsdale, New York.

How much does it snow in Hartsdale?

Throughout the year, in Hartsdale, New York, there are 18.9 snowfall days, and 5.08" (129mm) of snow is accumulated.

When is the lowest UV index in Hartsdale?

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hartsdale.

What are the most humid months in Hartsdale?

February and December, with an average relative humidity of 77%, are most humid months in Hartsdale.

What is the driest month in Hartsdale?

The month with the least rainfall in Hartsdale, New York, is February, when the rain falls for 7.3 days and typically collects 0.83" (21mm) of precipitation.

What is the month with the least sunshine in Hartsdale?

The month with the least sunshine in Hartsdale is February, with an average of 4.7h of sunshine.

When does it snow the most in Hartsdale?

March is the month with the most snowfall. Snow falls for 4.2 days and accumulates 1.65" (42mm) of snow.

When is Daylight Saving Time (DST) in Hartsdale?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Hartsdale, 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.

When it does not snow in Hartsdale?

May through September are months without snowfall.

When are the longest days in Hartsdale?

With an average of 15h and 6min of daylight, June has the longest days of the year in Hartsdale.

What are the months with the highest UV index in Hartsdale?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Hartsdale.

What time of the year is the hottest in Hartsdale?

In Hartsdale, July is the month with the highest recorded average temperatures, measuring a high of 84.4°F (29.1°C) and a low of 67.5°F (19.7°C).

What is the rainiest month in Hartsdale?

July is the month with the most rainfall. Rain falls for 15.1 days and accumulates 2.01" (51mm) of precipitation.

What month has the most sunshine in Hartsdale?

July has the most sunshine of the year in Hartsdale, with an average of 10.4h of sunshine.

What is the least humid month in Hartsdale?

With an average relative humidity of 70%, August is the least humid month.

What is the month with the shortest days in Hartsdale?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

Average temperature
Hartsdale, NY

Average temperature - Hartsdale, NY

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).

The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure
Hartsdale, NY

Average pressure - Hartsdale, 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
Hartsdale, NY

Average wind speed - Hartsdale, NY

The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity
Hartsdale, NY

Average humidity - Hartsdale, NY

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (70%).

Average rainfall
Hartsdale, NY

Average rainfall - Hartsdale, NY

The wettest month (with the highest rainfall) is July (2.01").
The driest month (with the least rainfall) is February (0.83").

Average rainfall days
Hartsdale, NY

Average rainfall days - Hartsdale, NY

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (6.5 days).

Average snowfall
Hartsdale, NY

Average snowfall - Hartsdale, NY

The month with the highest snowfall is March (1.65").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Hartsdale, NY

Average snowfall days - Hartsdale, NY

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Hartsdale, NY

Average daylight / Average sunshine - Hartsdale, NY

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days
Hartsdale, NY

Average sunshine days - Hartsdale, NY

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (13.8 days).

Average UV index
Hartsdale, NY

Average UV index - Hartsdale, NY

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover
Hartsdale, NY

Average cloud cover - Hartsdale, NY

The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility
Hartsdale, NY

Average visibility - Hartsdale, NY

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).

Hartsdale, New York, USA

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