May weather forecast and climate
Tonawanda, NY

Weather in May

The last month of the spring, May, is an enjoyable month in Tonawanda, New York, with average temperature varying between 48.7°F (9.3°C) and 66°F (18.9°C).

Temperature

In Tonawanda, the average high-temperature rises, from a cool 52.3°F (11.3°C) in April, to a comfortable 66°F (18.9°C). In Tonawanda, in May, the average low-temperature is 48.7°F (9.3°C).

Humidity

The average relative humidity in May is 76%.

Rainfall

May is the month with the most rainfall in Tonawanda. Rain falls for 17.8 days and accumulates 2.87" (73mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, Tonawanda aggregates 0.28" (7mm) of snow. In Tonawanda, during the entire year, snow falls for 77.2 days, and aggregates up to 30.94" (786mm) of snow.

Ocean temperature

In May, the average ocean temperature is 43.3°F (6.3°C).
Note: Swimming in 43.3°F (6.3°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In May, the average length of the day in Tonawanda is 14.7h.

Sunshine

In Tonawanda, the average sunshine is 8.8h.

UV index

In May, the average daily maximum UV index in Tonawanda is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the temperature in May in Tonawanda?

The average high-temperature, in May, is 66°F (18.9°C), while the average low-temperature is 48.7°F (9.3°C).

What is the average humidity in May in Tonawanda?

In May, the average relative humidity is 76%.

How much does it rain in Tonawanda in May?

In Tonawanda, during May, the rain falls for 17.8 days and regularly aggregates up to 2.87" (73mm) of precipitation.

What is the wettest month in Tonawanda?

May is the month with the most rainfall in Tonawanda, New York. Rain falls for 17.8 days and accumulates 2.87" (73mm) of precipitation.

What is the last month it snows in Tonawanda?

May is the last month it regularly snows. During 0.4 snowfall days, in May, Tonawanda aggregates 0.28" (7mm) of snow.

How cold is the water in May in Tonawanda?

In May, the average ocean temperature in Tonawanda is 43.3°F (6.3°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Tonawanda have in May?

The average length of the day in May in Tonawanda, New York, is 14.7h.

How long on average sun shines in May in Tonawanda?

In May, the average sunshine is 8.8h.

How high is the UV index in May in Tonawanda?

The average daily maximum UV index in May in Tonawanda is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in May
Tonawanda, NY

Average temperature in May - Tonawanda, NY
  • Average high temperature in May: 66°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).

[Resources]

Average pressure in May
Tonawanda, NY

Average pressure in May - Tonawanda, NY
  • Average pressure in May: 29.98"

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

[Resources]

Average wind speed in May
Tonawanda, NY

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

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

[Resources]

Average humidity in May
Tonawanda, NY

Average humidity in May - Tonawanda, NY
  • Average humidity in May: 76%

Months with the highest relative humidity are January and February (85%).
Months with the lowest relative humidity are July, August and September (74%).

[Resources]

Average rainfall in May
Tonawanda, NY

Average rainfall in May - Tonawanda, NY
  • Average rainfall in May: 2.87"

The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.81").

[Resources]

Average rainfall days in May
Tonawanda, NY

Average rainfall days in May - Tonawanda, NY
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (7.6 days).

[Resources]

Average snowfall in May
Tonawanda, NY

Average snowfall in May - Tonawanda, NY
  • Average snowfall in May: 0.28"

The month with the highest snowfall is February (7.64").
Months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in May
Tonawanda, NY

Average snowfall days in May - Tonawanda, NY
  • Average snowfall days in May: 0.4 days

The month with the highest number of snowfall days is January (19 days).
Months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average sea temperature in May
Tonawanda, NY

Average sea temperature in May - Tonawanda, NY
  • Average sea temperature in May: 43.3°F

The best month for swimming (with the highest average sea temperature) is August (72.9°F).
The coldest month (with the lowest average sea temperature) is March (35.7°F).

[Resources]

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

Average daylight in May / Average sunshine in May - Tonawanda, NY
  • Average daylight in May: 14.7h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in May: 8.8h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 2.3h).

[Resources]

Average sunshine days in May
Tonawanda, NY

Average sunshine days in May - Tonawanda, NY
  • Average sunshine days in May: 11.3 days

The month with the most sunshine days is September (12.5 days).
The month with the least sunshine days is January (6.3 days).

[Resources]

Average UV index in May
Tonawanda, NY

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

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February and December (UV index 1).

[Resources]

Average cloud cover in May
Tonawanda, NY

Average cloud cover in May - Tonawanda, NY
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 30).

[Resources]

Average visibility in May
Tonawanda, NY

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

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

[Resources]