April weather forecast
Chatham, NY

Weather in April

April in Chatham, New York, is a cool spring month, with average temperature varying between 36.1°F (2.3°C) and 54.3°F (12.4°C).

Temperature

In Chatham, the average high-temperature rises, from a cold 41.2°F (5.1°C) in March, to a fresh 54.3°F (12.4°C). The average low-temperature,, is 36.1°F (2.3°C).

Humidity

April is the least humid month in Chatham, with an average relative humidity of 75%.

Rainfall

In Chatham, it is raining for 14.1 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, in Chatham, there are 135.1 rainfall days, and 20.39" (518mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Chatham, New York, are January through May, October through December. In Chatham, during 2.1 snowfall days, 0.71" (18mm) of snow is typically accumulated. Throughout the year, there are 36.9 snowfall days, and 15.98" (406mm) of snow is accumulated.

Daylight

The average length of the day in April is 13.4h.

Sunshine

In April, the average sunshine in Chatham is 7.9h.

UV index

The average daily maximum UV index in Chatham is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: In April, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the least humid month in Chatham?

April is the least humid month in Chatham, with an average relative humidity of 75%.

What is the average humidity in April in Chatham?

In April, the average relative humidity in Chatham is 75%.

How much does it rain in Chatham in April?

In Chatham, New York, during April, the rain falls for 14.1 days and regularly aggregates up to 1.77" (45mm) of precipitation.

How many days does it snow in April in Chatham?

In Chatham, New York, in April, snow falls for 2.1 days, with typically accumulated 0.71" (18mm) of snow.

What is the average length of the day in April in Chatham?

In April, the average length of the day in Chatham is 13.4h.

How long on average sun shines in April in Chatham?

In April, the average sunshine is 7.9h.

How high is the UV index in April in Chatham?

In April, the average daily maximum UV index in Chatham, New York, is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to the UV radiation.

Average temperature in April
Chatham, NY

Average temperature in April - Chatham, NY
  • Average high temperature in April: 54.3°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in April: 36.1°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure in April
Chatham, NY

Average pressure in April - Chatham, NY
  • Average pressure in April: 29.97"

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

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Average wind speed in April
Chatham, NY

Average wind speed in April - Chatham, NY
  • Average wind speed in April: 7.9mph

The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in April
Chatham, NY

Average humidity in April - Chatham, NY
  • Average humidity in April: 75%

Months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in April
Chatham, NY

Average rainfall in April - Chatham, NY
  • Average rainfall in April: 1.77"

The wettest month (with the highest rainfall) is July (2.4").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in April
Chatham, NY

Average rainfall days in April - Chatham, NY
  • Average rainfall days in April: 14.1 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.7 days).

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Average snowfall in April
Chatham, NY

Average snowfall in April - Chatham, NY
  • Average snowfall in April: 0.71"

The month with the highest snowfall is March (3.9").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Chatham, NY

Average snowfall days in April - Chatham, NY
  • Average snowfall days in April: 2.1 days

The month with the highest number of snowfall days is February (9.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in April /
Average sunshine in April
Chatham, NY

Average daylight in April / Average sunshine in April - Chatham, NY
  • Average daylight in April: 13.4h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in April: 7.9h

Months with the most sunshine are July and August (Average sunshine: 10.3h).
The month with the least sunshine is February (Average sunshine: 3.8h).

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Average sunshine days in April
Chatham, NY

Average sunshine days in April - Chatham, NY
  • Average sunshine days in April: 13.5 days

The month with the most sunshine days is January (20 days).
The month with the least sunshine days is June (12.5 days).

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Average UV index in April
Chatham, NY

Average UV index in April - Chatham, NY
  • Average UV index in April: 3

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in April
Chatham, NY

Average cloud cover in April - Chatham, NY
  • Average cloud cover in April: 50

The month with the most cloud cover is February (Cloud cover 58).
Months with the least cloud cover are July and August (Cloud cover 35).

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Average visibility in April
Chatham, NY

Average visibility in April - Chatham, NY
  • Average visibility in April: 6mi

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

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