May weather forecastCardiff, NY
May
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in May /
Average sunshine in May
Cardiff, NY
- Average daylight in May: 14h and 42min
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 36min
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).
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).
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).
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).
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).
