July weather forecast
Marcellus, NY

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Weather in July

July is a warm summer month in Marcellus, New York, with an average temperature fluctuating between 59.9°F (15.5°C) and 78.3°F (25.7°C).

Temperature

July, with an average high of 78.3°F (25.7°C) and a low of 59.9°F (15.5°C), signifies the warmest month of the year.

Humidity

The average relative humidity in July is 80%.

Rainfall

In July, the rain falls for 15 days. Throughout July, 1.5" (38mm) of precipitation is accumulated. In Marcellus, during the entire year, the rain falls for 141.4 days and collects up to 16.57" (421mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in July is 14h and 59min.
On the first day of July, sunrise is at 5:30 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:27 pm EDT.

Sunshine

With an average of 10.3h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In July, a daily maximum UV index of 5 leads to the following instructions:
Take precautions - Protection against sunburn is recommended. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

July, recognised by an average high temperature of 78.3°F (25.7°C) and a low of 59.9°F (15.5°C), is Marcellus's warmest month.

What is the temperature in July?

An average high-temperature, in July, in Marcellus, is 78.3°F (25.7°C) and the average low-temperature is 59.9°F (15.5°C).

What is the average humidity in July?

The average relative humidity in July is 80%.

How much does it rain in July?

In Marcellus, New York, in July, it is raining for 15 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow?

In Marcellus, snow does not fall in May through September.

How many hours of daylight does Marcellus have in July?

In July, the average day length is 14h and 59min.

When is the sunrise / sunset in July?

On the first day of July, sunrise is at 5:30 am and sunset at 8:48 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 8:27 pm EDT.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.3h of sunshine.

How long on average sun shines in July?

The average sunshine duration in July is 10.3h.

What are the months with the highest UV index?

May through August, with an average maximum UV index of 5, are months with the highest UV index.

What is the UV index reading in July?

In Marcellus, the average daily maximum UV index in July is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe 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
Marcellus, NY

Average temperature in July - Marcellus, NY
  • Average high temperature in July: 78.3°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in July: 59.9°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in July
Marcellus, NY

Average pressure in July - Marcellus, NY
  • Average pressure in July: 29.95"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in July
Marcellus, NY

Average wind speed in July - Marcellus, NY
  • Average wind speed in July: 6.2mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in July
Marcellus, NY

Average humidity in July - Marcellus, NY
  • Average humidity in July: 80%

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

Average rainfall in July
Marcellus, NY

Average rainfall in July - Marcellus, NY
  • Average rainfall in July: 1.5"

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is September (1.02").

Average rainfall days in July
Marcellus, NY

Average rainfall days in July - Marcellus, NY
  • Average rainfall days in July: 15 days

The months with the highest number of rainy days are May and July (15 days).
The month with the least rainy days is January (6.7 days).

Average snowfall in July
Marcellus, NY

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

The months with the highest snowfall are February and December (3.62").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in July
Marcellus, NY

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

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Marcellus, NY

Average daylight in July / Average sunshine in July - Marcellus, NY
  • Average daylight in July: 15h and 0min

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

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).

Average sunshine days in July
Marcellus, NY

Average sunshine days in July - Marcellus, NY
  • Average sunshine days in July: 12.6 days

The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (7.2 days).

Average UV index in July
Marcellus, NY

Average UV index in July - Marcellus, NY
  • Average UV index in July: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in July
Marcellus, NY

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

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 32).

Average visibility in July
Marcellus, NY

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

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

Marcellus, New York, USA

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