Climate and monthly weather forecast
Lewis, NY

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Weather in January

January, like December, is another subzero cold winter month in Lewis, New York, with an average temperature fluctuating between 12.4°F (-10.9°C) and 24.8°F (-4°C). January, marked by an average high-temperature of 24.8°F (-4°C) and a low-temperature of 12.4°F (-10.9°C), is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Lewis, is another freezing cold month, with an average temperature fluctuating between 13.5°F (-10.3°C) and 27.7°F (-2.4°C). At the start of February, Lewis's average high-temperature reaches a still freezing cold 27.7°F (-2.4°C), subtly different from the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Lewis, is a cold month, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 36.3°F (2.4°C). The beginning of March signals a minor rise in the average high-temperature, moving from a subzero cold 27.7°F (-2.4°C) in February to an icy 36.3°F (2.4°C). Weather in March »

Weather in April

April in Lewis, New York, is a cool spring month, with an average temperature ranging between max 50.4°F (10.2°C) and min 32.5°F (0.3°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a wintry 36.3°F (2.4°C) to a cool 50.4°F (10.2°C). Weather in April »

Weather in May

May, the last month of the spring in Lewis, is an enjoyable month, with an average temperature ranging between max 65.3°F (18.5°C) and min 44.4°F (6.9°C). May's arrival brings a noticeable temperature shift, escalating from a fresh 50.4°F (10.2°C) in April to a refreshing 65.3°F (18.5°C). Weather in May »

Weather in June

June, the first month of the summer in Lewis, is an agreeable month, with an average temperature varying between 72.1°F (22.3°C) and 51.1°F (10.6°C). As May transitions into June, a subtle temperature shift is observed, with average highs adjusting from a comfortable 65.3°F (18.5°C) to an agreeable 72.1°F (22.3°C). Weather in June »

Weather in July

July in Lewis, New York, is a moderately hot summer month, with an average temperature ranging between min 56.8°F (13.8°C) and max 78.6°F (25.9°C). In Lewis, temperatures reach their average annual highs in July, measuring 78.6°F (25.9°C) and a minimum average of 56.8°F (13.8°C). Weather in July »

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). 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). Weather in August »

Weather in September

The first month of the autumn, September, is also an agreeable month in Lewis, New York, with an average temperature ranging between max 69.3°F (20.7°C) and min 48.9°F (9.4°C). September witnesses a gentle descent in average high-temperature, descending from August's moderately hot 76.8°F (24.9°C) to an agreeable 69.3°F (20.7°C). Weather in September »

Weather in October

October, the same as September, is another fresh autumn month in Lewis, New York, with an average temperature fluctuating between 54.9°F (12.7°C) and 39.7°F (4.3°C). In Lewis, the average high-temperature in October drops, from a pleasant 69.3°F (20.7°C) in September, to a cool 54.9°F (12.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Lewis, is also a wintry month, with temperature in the range of an average high of 41.5°F (5.3°C) and an average low of 28.6°F (-1.9°C). The start of November signals a decrease in the average high-temperature, transitioning from a fresh 54.9°F (12.7°C) in October to an icy 41.5°F (5.3°C). Weather in November »

Weather in December

December, the first month of the winter in Lewis, is still a freezing cold month, with temperature in the range of an average high of 30.6°F (-0.8°C) and an average low of 19.9°F (-6.7°C). In Lewis, entering December brings a temperature decrement, reducing from November's cold 41.5°F (5.3°C) to a subzero cold 30.6°F (-0.8°C). Weather in December »
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Frequently asked questions

What month is the coldest in Lewis?

January, with an average high of 24.8°F (-4°C) and a low of 12.4°F (-10.9°C), signifies the coldest month of the year in Lewis, New York.

What are the most humid months in Lewis?

The months with the highest humidity in Lewis, New York, are January and February, with an average relative humidity of 86%.

How many days does it rain in Lewis?

Throughout the year, there are 176.9 rainfall days, and 28.27" (718mm) of precipitation is accumulated.

When does it snow in Lewis?

Months with snowfall in Lewis, New York, are January through May, October through December.

How many days does it snow in Lewis?

In Lewis, New York, during the entire year, snow falls for 85.1 days and aggregates up to 43.03" (1093mm) of snow.

What is the month with the lowest UV index in Lewis?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Lewis.

What is the snowiest month in Lewis?

February is the month with the most snowfall in Lewis, New York. Snow falls for 19.3 days and accumulates 12.05" (306mm) of snow.

What is the month with the least sunshine in Lewis?

February has the least sunshine of the year in Lewis, New York, with an average of 3.6h of sunshine.

When is Daylight Saving Time (DST) in Lewis?

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.

What is the least humid month in Lewis?

With an average relative humidity of 75%, May is the least humid month in Lewis.

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

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

What is the wettest month in Lewis?

The month with the most rainfall in Lewis, New York, is June, when the rain falls for 17.4 days and typically aggregates up to 3.19" (81mm) of precipitation.

When it does not snow in Lewis?

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

When are the longest days in Lewis?

With an average of 15h and 30min of daylight, June has the longest days of the year.

What are the warmest months in Lewis?

In Lewis, the average highest temperatures are observed in July, with a high of 78.6°F (25.9°C) and a low of 56.8°F (13.8°C).

What month has the most sunshine in Lewis?

The month with the most sunshine is July, with an average of 10.4h of sunshine.

What is the driest month in Lewis?

September is the month with the least rainfall in Lewis. Rain falls for 11.1 days and accumulates 1.65" (42mm) of precipitation.

What is the month with the shortest days in Lewis?

With an average of 8h and 54min of daylight, December has the shortest days of the year.

Average temperature
Lewis, NY

Average temperature - Lewis, NY

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).

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
Lewis, NY

Average pressure - Lewis, NY

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
Lewis, NY

Average wind speed - Lewis, NY

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
Lewis, NY

Average humidity - Lewis, NY

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
Lewis, NY

Average rainfall - Lewis, NY

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
Lewis, NY

Average rainfall days - Lewis, NY

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
Lewis, NY

Average snowfall - Lewis, NY

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
Lewis, NY

Average snowfall days - Lewis, NY

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 / Average sunshine
Lewis, NY

Average daylight / Average sunshine - Lewis, NY

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).

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
Lewis, NY

Average sunshine days - Lewis, NY

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
Lewis, NY

Average UV index - Lewis, NY

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 visibility
Lewis, NY

Average visibility - Lewis, NY

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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