May weather forecast
Cardiff, NY

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Weather in May

The last month of the spring, May, is a comfortable month in Cardiff, New York, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 46.4°F (8°C).

Temperature

Cardiff's May weather shows an increase in high-temperatures, moving from April's cool 52.2°F (11.2°C) to a refreshing 65.8°F (18.8°C). The average temperature drops to a chilly 46.4°F (8°C) during the night in the month of May.

Humidity

April and May, with an average relative humidity of 80%, are the least humid months in Cardiff.

Rainfall

May is the month with the most rainfall in Cardiff. Rain falls for 16.7 days and accumulates 2.64" (67mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Cardiff. During 0.5 snowfall days, in May, Cardiff aggregates 0.04" (1mm) of snow. In Cardiff, during the entire year, snow falls for 78.2 days and aggregates up to 29.37" (746mm) of snow.

Daylight

In May, the average length of the day is 14h and 40min.
On the first day of the month, sunrise is at 5:57 am and sunset at 8:05 pm. On the last day of May, in Cardiff, sunrise is at 5:28 am and sunset at 8:36 pm EDT.

Sunshine

In May, the average sunshine in Cardiff is 8.6h.

UV index

May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Undertake protective steps - Preventing sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What is the temperature in May in Cardiff?

In Cardiff, in May, the average high-temperature is 65.8°F (18.8°C), and the average low-temperature is 46.4°F (8°C).

What is the least humid month in Cardiff?

The months with the lowest humidity are April and May, with an average relative humidity of 80%.

What is the average humidity in May in Cardiff?

In May, the average relative humidity in Cardiff, New York, is 80%.

What is the wettest month in Cardiff?

The month with the most rainfall in Cardiff, New York, is May, when the rain falls for 16.7 days and typically aggregates up to 2.64" (67mm) of precipitation.

How much does it rain in Cardiff in May?

In May, the rain falls for 16.7 days. Throughout May, 2.64" (67mm) of precipitation is accumulated.

What is the last month it snows in Cardiff?

May is the last month it regularly snows in Cardiff. During 0.5 snowfall days, in May, Cardiff aggregates 0.04" (1mm) of snow.

What is the average length of the day in May in Cardiff?

The average day length in May in Cardiff, New York, is 14h and 40min.

When are sunrise and sunset in May in Cardiff?

In May, on the first day of the month, sunrise is at 5:57 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:28 am and sunset at 8:36 pm EDT.

How long on average sun shines in May in Cardiff?

In May, the average sunshine duration in Cardiff, New York, is 8.6h.

What is the month with the highest UV index in Cardiff?

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

What is the UV index reading in May in Cardiff?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Cardiff, NY

Average temperature in May - Cardiff, NY
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in May: 46.4°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in May
Cardiff, NY

Average pressure in May - Cardiff, NY
  • Average pressure in May: 29.99"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Cardiff, NY

Average wind speed in May - Cardiff, NY
  • Average wind speed in May: 7.7mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in May
Cardiff, NY

Average humidity in May - Cardiff, NY
  • Average humidity in May: 80%

The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (80%).

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Average rainfall in May
Cardiff, NY

Average rainfall in May - Cardiff, NY
  • Average rainfall in May: 2.64"

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is November (1.57").

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Average rainfall days in May
Cardiff, NY

Average rainfall days in May - Cardiff, NY
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in May
Cardiff, NY

Average snowfall in May - Cardiff, NY
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Cardiff, NY

Average snowfall days in May - Cardiff, NY
  • Average snowfall days in May: 0.5 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Cardiff, NY

Average daylight in May / Average sunshine in May - Cardiff, NY
  • Average daylight in May: 14h and 4min

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 May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).

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Average sunshine days in May
Cardiff, NY

Average sunshine days in May - Cardiff, NY
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is February (7.6 days).

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Average UV index in May
Cardiff, NY

Average UV index in May - Cardiff, NY
  • Average UV index in May: 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, February and December (UV index 1).

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Average cloud cover in May
Cardiff, NY

Average cloud cover in May - Cardiff, NY
  • Average cloud cover in May: 45

The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 34).

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Average visibility in May
Cardiff, NY

Average visibility in May - Cardiff, NY
  • Average visibility in May: 6mi

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

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Cardiff, New York, USA

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