August weather forecast
Lewis, NY

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Weather in August

The last month of the summer, August, is another warm month in Lewis, New York, with an average temperature varying between 76.8°F (24.9°C) and 55.4°F (13°C).

Temperature

The transition from July to August sees average high-temperatures adjusting to a still warm 76.8°F (24.9°C), from a not significantly different 78.6°F (25.9°C). Lewis's average low-temperature during August nights is observed to be a refreshing 55.4°F (13°C).

Humidity

In August, the average relative humidity is 77%.

Rainfall

In Lewis, in August, it is raining for 16.7 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, in Lewis, there are 176.9 rainfall days, and 28.27" (718mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August in Lewis is 13h and 58min.
On the first day of the month, sunrise is at 5:42 am and sunset at 8:18 pm. On the last day of August, in Lewis, sunrise is at 6:16 am and sunset at 7:31 pm EDT.

Sunshine

In August, the average sunshine in Lewis is 10.3h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the average maximum UV index of 5 translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What are August temperatures in Lewis?

In Lewis, in August, the average high-temperature is 76.8°F (24.9°C), and the average low-temperature is 55.4°F (13°C).

What is the average humidity in August in Lewis?

The average relative humidity in August is 77%.

How much does it rain in Lewis in August?

In Lewis, New York, in August, it is raining for 16.7 days, with typically 2.56" (65mm) of accumulated precipitation.

When it does not snow in Lewis?

June through September are months without snowfall.

What is the average length of the day in August in Lewis?

In Lewis, the average day length in August is 13h and 58min.

When is the sunrise / sunset in August in Lewis?

On the first day of August in Lewis, New York, sunrise is at 5:42 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 7:31 pm EDT.

How many hours of sunshine does Lewis have in August?

The average sunshine duration in August in Lewis is 10.3h.

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

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

What is the UV index intensity in August in Lewis?

The average daily maximum UV index in August in Lewis, New York, 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
Lewis, NY

Average temperature in August - Lewis, NY
  • Average high temperature in August: 76.8°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (24.8°F).

  • Average low temperature in August: 55.4°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

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Average pressure in August
Lewis, NY

Average pressure in August - Lewis, NY
  • Average pressure in August: 29.96"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in August
Lewis, NY

Average wind speed in August - Lewis, NY
  • Average wind speed in August: 5.1mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

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Average humidity in August
Lewis, NY

Average humidity in August - Lewis, NY
  • Average humidity in August: 77%

The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in August
Lewis, NY

Average rainfall in August - Lewis, NY
  • Average rainfall in August: 2.56"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is September (1.65").

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Average rainfall days in August
Lewis, NY

Average rainfall days in August - Lewis, NY
  • Average rainfall days in August: 16.7 days

The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (10.4 days).

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Average snowfall in August
Lewis, NY

Average snowfall in August - Lewis, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (12.05").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in August
Lewis, NY

Average snowfall days in August - Lewis, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Lewis, NY

Average daylight in August / Average sunshine in August - Lewis, NY
  • Average daylight in August: 14h and 0min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in August: 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: 3h and 36min).

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Average sunshine days in August
Lewis, NY

Average sunshine days in August - Lewis, NY
  • Average sunshine days in August: 10.9 days

The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is February (7.6 days).

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Average UV index in August
Lewis, NY

Average UV index in August - Lewis, 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).

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Average cloud cover in August
Lewis, NY

Average cloud cover in August - Lewis, NY
  • Average cloud cover in August: 33

The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 32).

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Average visibility in August
Lewis, NY

Average visibility in August - Lewis, NY
  • Average visibility in August: 5mi

The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).

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Lewis, New York, USA

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