Climate and monthly weather forecast
Upper Brookville, NY

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Weather in January

January, like December, in Upper Brookville, New York, is an icy winter month, with an average temperature varying between 27.3°F (-2.6°C) and 36.5°F (2.5°C). January is the month that records the lowest temperatures, with averages ranging from a high of 36.5°F (2.5°C) to a low of 27.3°F (-2.6°C). Weather in January »

Weather in February

February, the last month of the winter in Upper Brookville, is also a wintry month, with an average temperature varying between 39°F (3.9°C) and 28.8°F (-1.8°C). At the onset of February, Upper Brookville records an average high-temperature of a still icy 39°F (3.9°C), showing little deviation from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Upper Brookville, is a chilly month, with an average temperature varying between 35.2°F (1.8°C) and 45.1°F (7.3°C). Upper Brookville's transition into March sees a mild rise in the average high-temperature, edging from a wintry 39°F (3.9°C) in February to a chilly 45.1°F (7.3°C). Weather in March »

Weather in April

April in Upper Brookville, New York, is a cool spring month, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 55°F (12.8°C). With the onset of April, the average high-temperature slightly shifts from March's chilly 45.1°F (7.3°C) to a fresh 55°F (12.8°C). Weather in April »

Weather in May

May, the last month of the spring in Upper Brookville, is a comfortable month, with temperature in the range of an average low of 54.1°F (12.3°C) and an average high of 65.3°F (18.5°C). As May arrives, Upper Brookville's weather shows an increase in high-temperatures, moving from April's fresh 55°F (12.8°C) to a refreshing 65.3°F (18.5°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Upper Brookville, New York, with an average temperature ranging between max 74.5°F (23.6°C) and min 63.1°F (17.3°C). In Upper Brookville, stepping into June brings a temperature increase, moving up from May's comfortable 65.3°F (18.5°C) to a moderately hot 74.5°F (23.6°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Upper Brookville, New York, with temperature in the range of an average low of 70.3°F (21.3°C) and an average high of 81.5°F (27.5°C). Upper Brookville's July weather, marked by an average high temperature of 81.5°F (27.5°C) and an average low temperature of 70.3°F (21.3°C), is the warmest in the year. July's mean heat index is calculated to be a hot 86°F (30°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Upper Brookville, New York, with an average temperature varying between 80.4°F (26.9°C) and 70.3°F (21.3°C). With the start of August, Upper Brookville measures an average high-temperature of a still warm 80.4°F (26.9°C), not significantly differing from July's 81.5°F (27.5°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Upper Brookville, New York, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 63.5°F (17.5°C). As Upper Brookville enters September, the average high-temperature subtly lowers from the 80.4°F (26.9°C) of August to a still warm 73.4°F (23°C). Weather in September »

Weather in October

October, like September, in Upper Brookville, New York, is another comfortable autumn month, with temperature in the range of an average high of 63°F (17.2°C) and an average low of 53.4°F (11.9°C). October brings a drop in Upper Brookville's average high-temperature, falling from a warm 73.4°F (23°C) in September to a comfortable 63°F (17.2°C). Weather in October »

Weather in November

November, the last month of the autumn in Upper Brookville, is another cool month, with temperature in the range of an average high of 51.1°F (10.6°C) and an average low of 42.3°F (5.7°C). The onset of November brings a small change in high-temperatures, falling from a refreshing 63°F (17.2°C) in October to a fresh 51.1°F (10.6°C). Weather in November »

Weather in December

The first month of the winter, December, is also an icy month in Upper Brookville, New York, with an average temperature fluctuating between 42.4°F (5.8°C) and 34.7°F (1.5°C). The arrival of December correlates with a minor temperature reduction, down from November's fresh 51.1°F (10.6°C) to an icy 42.4°F (5.8°C). Weather in December »
Updated: Jul 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January stands out as Upper Brookville's coldest month, with temperatures ranging between an average high of 36.5°F (2.5°C) and a low of 27.3°F (-2.6°C).

How many days does it rain?

Throughout the year, in Upper Brookville, there are 165.9 rainfall days, and 37.56" (954mm) of precipitation is accumulated.

When does it snow?

January through April, November and December are months with snowfall.

How many days does it snow?

In Upper Brookville, New York, during the entire year, snow falls for 22.2 days and aggregates up to 7.24" (184mm) of snow.

What is the month with the lowest UV index?

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

What are the most humid months?

The months with the highest humidity are February, May and December, with an average relative humidity of 75%.

What is the month with the least sunshine?

With an average of 4.8h of sunshine, February has the least sunshine of the year in Upper Brookville.

What is the snowiest month?

March is the month with the most snowfall. Snow falls for 4.7 days and accumulates 2.01" (51mm) of snow.

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.

When it does not snow?

May through October are months without snowfall.

When are the longest days?

The month with the longest days is June, with an average of 15h and 6min of daylight.

What is the month with the highest UV index?

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

What part of the year is the hottest?

July, noted for its average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 70.3°F (21.3°C), is considered the warmest month.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.7h of sunshine.

What is the least humid month?

August and November, with an average relative humidity of 71%, are the least humid months.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 2.4" (61mm) of precipitation.

What is the wettest month?

The month with the most rainfall is December, when the rain falls for 12.9 days and typically aggregates up to 4.06" (103mm) of precipitation.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

Average temperature
Upper Brookville, NY

Average temperature - Upper Brookville, NY

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

Average pressure
Upper Brookville, NY

Average pressure - Upper Brookville, 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
Upper Brookville, NY

Average wind speed - Upper Brookville, NY

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity
Upper Brookville, NY

Average humidity - Upper Brookville, NY

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

Average rainfall
Upper Brookville, NY

Average rainfall - Upper Brookville, NY

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days
Upper Brookville, NY

Average rainfall days - Upper Brookville, NY

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

Average snowfall
Upper Brookville, NY

Average snowfall - Upper Brookville, NY

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Upper Brookville, NY

Average snowfall days - Upper Brookville, NY

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight / Average sunshine
Upper Brookville, NY

Average daylight / Average sunshine - Upper Brookville, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days
Upper Brookville, NY

Average sunshine days - Upper Brookville, NY

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

Average UV index
Upper Brookville, NY

Average UV index - Upper Brookville, 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
Upper Brookville, NY

Average cloud cover - Upper Brookville, NY

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility
Upper Brookville, NY

Average visibility - Upper Brookville, 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).

Upper Brookville, New York, USA

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