May weather forecast and climate
Hewlett, NY

The last month of the spring, May, is a comfortable month in Hewlett, New York, with temperature in the range of an average high of 64.6°F (18.1°C) and an average low of 54.1°F (12.3°C).

Temperature

In Hewlett, the average high-temperature increases, from a fresh 54.7°F (12.6°C) in April, to an enjoyable 64.6°F (18.1°C). In May, the average low-temperature is 54.1°F (12.3°C).

Humidity

May is the most humid month in Hewlett, New York, with an average relative humidity of 77%.

Rainfall

In Hewlett, during May, the rain falls for 14.3 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, in Hewlett, there are 135.3 rainfall days, and 18.62" (473mm) of precipitation is accumulated.

Snowfall

April through September are months without snowfall.

Daylight

The average length of the day in May is 14.5h.

Sunshine

The average sunshine in Hewlett is 8.9h.

UV index

In Hewlett, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Hewlett?

In May, in Hewlett, the average high-temperature is 64.6°F (18.1°C), and the average low-temperature is 54.1°F (12.3°C).

What is the most humid month in Hewlett?

May is the most humid month, with an average relative humidity of 77%.

What is the average humidity in May in Hewlett?

The average relative humidity in May is 77%.

How much does it rain in Hewlett in May?

In Hewlett, New York, in May, it is raining for 14.3 days, with typically 1.65" (42mm) of accumulated precipitation.

When it does not snow in Hewlett?

April through September are months without snowfall in Hewlett.

How many hours of daylight does Hewlett have in May?

In Hewlett, New York, the average length of the day in May is 14.5h.

How long on average sun shines in May in Hewlett?

In Hewlett, the average sunshine in May is 8.9h.

What is the UV index reading in May in Hewlett?

The average daily maximum UV index in May in Hewlett, New York, is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in May - Hewlett, NY
  • Average high temperature in May: 18.1°C

The warmest month (with the highest average high temperature) is July (27°C).
The month with the lowest average high temperature is January (2.8°C).

  • Average low temperature in May: 12.3°C

The month with the highest average low temperature is August (21.7°C).
The coldest month (with the lowest average low temperature) is January (-2.1°C).

Average pressure in May - Hewlett, NY
  • Average pressure in May: 1016.4mbar

The month with the highest atmospheric pressure is November (1019.3mbar).
The month with the lowest atmospheric pressure is June (1013.6mbar).

Average wind speed in May - Hewlett, NY
  • Average wind speed in May: 14.7km/h

The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).

Average humidity in May - Hewlett, NY
  • Average humidity in May: 77%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (72%).

Average rainfall in May - Hewlett, NY
  • Average rainfall in May: 42mm

The wettest months (with the highest rainfall) are July and August (59mm).
The driest month (with the least rainfall) is January (23mm).

Average rainfall days in May - Hewlett, NY
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is July (15.1 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in May - Hewlett, NY
  • Average snowfall in May: 0mm

The month with the highest snowfall is March (26mm).
Months with the least snowfall are April, May, June, July, August and September (0mm).

Average snowfall days in May - Hewlett, NY
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (4.6 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Hewlett, NY
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 8.9h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in May - Hewlett, NY
  • Average sunshine days in May: 14.5 days

The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is July (13.6 days).

Average UV index in May - Hewlett, NY
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in May - Hewlett, NY
  • Average cloud cover in May: 42

Months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in May - Hewlett, NY
  • Average visibility in May: 9km

Months with the highest visibility are April, June, July, August, September, October and November (10km).
Months with the lowest visibility are January, February, March, May and December (9km).