July weather forecast
Hartsdale, NY

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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).

Temperature

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.

Heat index

During July, the heat index is estimated at a hot 91.4°F (33°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
The heat index's values are generally associated with conditions in shade and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.

Humidity

In Hartsdale, New York, the average relative humidity in July is 71%.

Rainfall

The month with the most rainfall is July, when the rain falls for 15.1 days and typically aggregates up to 2.01" (51mm) of precipitation.

Snowfall

In Hartsdale, New York, snow does not fall in May through September.

Daylight

The average length of the day in July in Hartsdale is 14h and 47min.
On the first day of the month, sunrise is at 5:27 am and sunset at 8:31 pm. On the last day of July, sunrise is at 5:50 am and sunset at 8:12 pm EDT.

Sunshine

With an average of 10.4h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: During July, 6 as the daily maximum UV index converts into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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 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).

How hot is July in Hartsdale?

The high-temperature in Hartsdale during July is 84.4°F (29.1°C) and the low-temperature is 67.5°F (19.7°C). In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 91.4°F (33°C).

What is the average humidity in July in Hartsdale?

In Hartsdale, New York, the average relative humidity in July is 71%.

What is the rainiest month in Hartsdale?

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

How many days does it rain in July in Hartsdale?

In Hartsdale, New York, during July, the rain falls for 15.1 days and regularly aggregates up to 2.01" (51mm) of precipitation.

When it does not snow in Hartsdale?

May through September are months without snowfall.

How many hours of daylight does Hartsdale have in July?

The average day length in July in Hartsdale, New York, is 14h and 47min.

What time are sunrise and sunset in July in Hartsdale?

On the first day of July, sunrise is at 5:27 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 5:50 am and sunset at 8:12 pm EDT.

What month has the most sunshine in Hartsdale?

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

How many hours of sunshine does Hartsdale have in July?

In July, the average sunshine duration in Hartsdale, New York, is 10.4h.

What is the month 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, New York.

What is the UV index intensity in July in Hartsdale?

In Hartsdale, New York, the average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Hartsdale, NY

Average temperature in July - Hartsdale, NY
  • Average high temperature in July: 84.4°F

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).

  • Average low temperature in July: 67.5°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 in July
Hartsdale, NY

Average pressure in July - Hartsdale, NY
  • Average pressure in July: 29.96"Hg

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 in July
Hartsdale, NY

Average wind speed in July - Hartsdale, NY
  • Average wind speed in July: 5.6mph

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 in July
Hartsdale, NY

Average humidity in July - Hartsdale, NY
  • Average humidity in July: 71%

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

Average rainfall in July
Hartsdale, NY

Average rainfall in July - Hartsdale, NY
  • Average rainfall in July: 2.01"

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 in July
Hartsdale, NY

Average rainfall days in July - Hartsdale, NY
  • Average rainfall days in July: 15.1 days

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 in July
Hartsdale, NY

Average snowfall in July - Hartsdale, NY
  • Average snowfall in July: 0"

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 in July
Hartsdale, NY

Average snowfall days in July - Hartsdale, NY
  • Average snowfall days in July: 0 days

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 in July /
Average sunshine in July
Hartsdale, NY

Average daylight in July / Average sunshine in July - Hartsdale, NY
  • Average daylight in July: 14h and 5min

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).

  • Average sunshine in July: 10h and 2min

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 in July
Hartsdale, NY

Average sunshine days in July - Hartsdale, NY
  • Average sunshine days in July: 13.8 days

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 in July
Hartsdale, NY

Average UV index in July - Hartsdale, NY
  • Average UV index in July: 6

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 in July
Hartsdale, NY

Average cloud cover in July - Hartsdale, NY
  • Average cloud cover in July: 32

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 in July
Hartsdale, NY

Average visibility in July - Hartsdale, NY
  • Average visibility in July: 6mi

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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