May weather forecast
Saint Johnsville, NY

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Weather in May

May, the last month of the spring in Saint Johnsville, is an enjoyable month, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 45.9°F (7.7°C).

Temperature

As May begins, there is an increase in the average high-temperature, moving from a fresh 52.7°F (11.5°C) in April to a comfortable 66.2°F (19°C). Saint Johnsville's temperature tends to fall to an average low of 45.9°F (7.7°C) during the nights of May.

Humidity

The average relative humidity in May in Saint Johnsville is 77%.

Rainfall

May is the month with the most rainfall in Saint Johnsville. Rain falls for 18 days and accumulates 3.46" (88mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Saint Johnsville. May is the last month it regularly snows in Saint Johnsville, New York. During 0.3 snowfall days, in May, Saint Johnsville aggregates 0.04" (1mm) of snow. In Saint Johnsville, during the entire year, snow falls for 71.4 days and aggregates up to 33.58" (853mm) of snow.

Daylight

In Saint Johnsville, the average length of the day in May is 14h and 41min.
On the first day of the month, sunrise is at 5:51 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:22 am and sunset at 8:30 pm EDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

The months with the highest UV index in Saint Johnsville are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 5 transforms into these recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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Frequently asked questions

What are the temperatures in Saint Johnsville in May?

In May, the average high-temperature and low-temperature in Saint Johnsville, New York, are 66.2°F (19°C) and 45.9°F (7.7°C) respectively.

What is the average humidity in May in Saint Johnsville?

In May, the average relative humidity in Saint Johnsville, New York, is 77%.

What is the wettest month in Saint Johnsville?

May is the month with the most rainfall in Saint Johnsville, New York. Rain falls for 18 days and accumulates 3.46" (88mm) of precipitation.

How many days does it rain in May in Saint Johnsville?

In May, in Saint Johnsville, the rain falls for 18 days. Throughout May, 3.46" (88mm) of precipitation is accumulated.

What is the last month it snows in Saint Johnsville?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Saint Johnsville aggregates 0.04" (1mm) of snow.

How many hours of daylight does Saint Johnsville have in May?

In May, the average day length in Saint Johnsville is 14h and 41min.

When is the sunrise / sunset in May in Saint Johnsville?

On the first day of May, sunrise is at 5:51 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:30 pm EDT.

How long on average sun shines in May in Saint Johnsville?

In May, the average sunshine duration is 8.6h.

What are the months with the highest UV index in Saint Johnsville?

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

What is the UV index intensity in May in Saint Johnsville?

In Saint Johnsville, New York, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe 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
Saint Johnsville, NY

Average temperature in May - Saint Johnsville, NY
  • Average high temperature in May: 66.2°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in May: 45.9°F

The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

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Average pressure in May
Saint Johnsville, NY

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

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

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Average wind speed in May
Saint Johnsville, NY

Average wind speed in May - Saint Johnsville, NY
  • Average wind speed in May: 7.1mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in May
Saint Johnsville, NY

Average humidity in May - Saint Johnsville, NY
  • Average humidity in May: 77%

The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is April (76%).

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Average rainfall in May
Saint Johnsville, NY

Average rainfall in May - Saint Johnsville, NY
  • Average rainfall in May: 3.46"

The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in May
Saint Johnsville, NY

Average rainfall days in May - Saint Johnsville, NY
  • Average rainfall days in May: 18 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (9.3 days).

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Average snowfall in May
Saint Johnsville, NY

Average snowfall in May - Saint Johnsville, NY
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (9.17").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Saint Johnsville, NY

Average snowfall days in May - Saint Johnsville, NY
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (17.9 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
Saint Johnsville, NY

Average daylight in May / Average sunshine in May - Saint Johnsville, 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 12min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).

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Average sunshine days in May
Saint Johnsville, NY

Average sunshine days in May - Saint Johnsville, NY
  • Average sunshine days in May: 11.1 days

The month with the most sunshine days is September (16 days).
The month with the least sunshine days is February (6.3 days).

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Average UV index in May
Saint Johnsville, NY

Average UV index in May - Saint Johnsville, 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 and December (UV index 1).

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Average cloud cover in May
Saint Johnsville, NY

Average cloud cover in May - Saint Johnsville, NY
  • Average cloud cover in May: 46

The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 35).

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Average visibility in May
Saint Johnsville, NY

Average visibility in May - Saint Johnsville, NY
  • Average visibility in May: 5mi

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

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Saint Johnsville, New York, USA

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