August weather forecast
Saint Johnsville, NY

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Weather in August

The last month of the summer, August, is another warm month in Saint Johnsville, New York, with temperature in the range of an average high of 77°F (25°C) and an average low of 56.8°F (13.8°C).

Temperature

Saint Johnsville experiences an average high-temperature of a still moderately hot 77°F (25°C) in August, marking an insignificant shift from 79.3°F (26.3°C) in July. Throughout the month of August, Saint Johnsville expects an average low of 56.8°F (13.8°C).

Humidity

In Saint Johnsville, the average relative humidity in August is 79%.

Rainfall

In Saint Johnsville, during August, the rain falls for 16.3 days and regularly aggregates up to 2.95" (75mm) of precipitation. In Saint Johnsville, during the entire year, the rain falls for 171 days and collects up to 34.25" (870mm) of precipitation.

Snowfall

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

Daylight

In Saint Johnsville, the average length of the day in August is 13h and 53min.
On the first day of the month, sunrise is at 5:50 am and sunset at 8:19 pm. On the last day of August, sunrise is at 6:22 am and sunset at 7:34 pm EDT.

Sunshine

In August, the average sunshine is 10h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 5 in August interprets into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

In August, the average high-temperature and low-temperature are 77°F (25°C) and 56.8°F (13.8°C) respectively.

What is the average humidity in August in Saint Johnsville?

In Saint Johnsville, the average relative humidity in August is 79%.

How much does it rain in August?

In Saint Johnsville, in August, during 16.3 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Saint Johnsville have in August?

In Saint Johnsville, the average day length in August is 13h and 53min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:50 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 6:22 am and sunset at 7:34 pm EDT.

How long on average sun shines in August?

In August, the average sunshine duration is 10h.

What is the month with the highest UV index?

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

What is the UV index reading in August in Saint Johnsville?

In Saint Johnsville, the average daily maximum UV index in August is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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 August
Saint Johnsville, NY

Average temperature in August - Saint Johnsville, NY
  • Average high temperature in August: 77°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in August: 56.8°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 (15.3°F).

Average pressure in August
Saint Johnsville, NY

Average pressure in August - Saint Johnsville, NY
  • Average pressure in August: 29.98"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 August
Saint Johnsville, NY

Average wind speed in August - Saint Johnsville, NY
  • Average wind speed in August: 5.8mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in August
Saint Johnsville, NY

Average humidity in August - Saint Johnsville, NY
  • Average humidity in August: 79%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (76%).

Average rainfall in August
Saint Johnsville, NY

Average rainfall in August - Saint Johnsville, NY
  • Average rainfall in August: 2.95"

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in August
Saint Johnsville, NY

Average rainfall days in August - Saint Johnsville, NY
  • Average rainfall days in August: 16.3 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in August
Saint Johnsville, NY

Average snowfall in August - Saint Johnsville, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (9.17").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Saint Johnsville, NY

Average snowfall days in August - Saint Johnsville, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (17.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Saint Johnsville, NY

Average daylight in August / Average sunshine in August - Saint Johnsville, NY
  • Average daylight in August: 13h and 5min

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 August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).

Average sunshine days in August
Saint Johnsville, NY

Average sunshine days in August - Saint Johnsville, NY
  • Average sunshine days in August: 11.7 days

The month with the most sunshine days is September (16 days).
The month with the least sunshine days is February (6.3 days).

Average UV index in August
Saint Johnsville, NY

Average UV index in August - Saint Johnsville, NY
  • Average UV index in August: 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 August
Saint Johnsville, NY

Average cloud cover in August - Saint Johnsville, NY
  • Average cloud cover in August: 35

The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 35).

Average visibility in August
Saint Johnsville, NY

Average visibility in August - Saint Johnsville, NY
  • Average visibility in August: 5mi

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

Saint Johnsville, New York, USA

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