May weather forecast and climate
Defiance, OH

May, the last month of the spring, in Defiance, is a pleasant month, with average temperature fluctuating between 69.8°F (21°C) and 52.5°F (11.4°C).

Temperature

In May, the average high-temperature increases, from a mild 57.7°F (14.3°C) in April, to an agreeable 69.8°F (21°C). In May, the average low-temperature is 52.5°F (11.4°C).

Humidity

The average relative humidity in May is 77%.

Rainfall

In May, the rain falls for 19 days. Throughout May, 3.23" (82mm) of precipitation is accumulated. Throughout the year, there are 160.2 rainfall days, and 27.56" (700mm) of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, Defiance aggregates 0.08" (2mm) of snow. In Defiance, during the entire year, snow falls for 45.7 days, and aggregates up to 13.74" (349mm) of snow.

Daylight

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

Sunshine

In Defiance, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in Defiance is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 5 in May interpret into the following advice:
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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in May in Defiance?

In Defiance, Ohio, in May, the average high-temperature is 69.8°F (21°C), and the average low-temperature is 52.5°F (11.4°C).

What is the average humidity in May in Defiance?

In May, the average relative humidity is 77%.

How many days does it rain in May in Defiance?

In Defiance, during May, the rain falls for 19 days and regularly aggregates up to 3.23" (82mm) of precipitation.

What is the last month it snows in Defiance?

May is the last month it regularly snows in Defiance, Ohio. During 0.1 snowfall days, in May, Defiance aggregates 0.08" (2mm) of snow.

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

In Defiance, the average length of the day in May is 14.5h.

How long on average sun shines in May in Defiance?

In May, the average sunshine is 8.7h.

What is the UV index intensity in May in Defiance?

The average daily maximum UV index in May in Defiance, Ohio, 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 - Defiance, OH
  • Average high temperature in May: 21°C

The warmest month (with the highest average high temperature) is July (27.2°C).
The month with the lowest average high temperature is January (-1°C).

  • Average low temperature in May: 11.4°C

The month with the highest average low temperature is July (17.6°C).
The coldest month (with the lowest average low temperature) is January (-7.2°C).

Average pressure in May - Defiance, OH
  • Average pressure in May: 1015.1mbar

The month with the highest atmospheric pressure is November (1019.6mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

Average wind speed in May - Defiance, OH
  • Average wind speed in May: 13.4km/h

The windiest month (with the highest average wind speed) is January (16.6km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).

Average humidity in May - Defiance, OH
  • Average humidity in May: 77%

Months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (74%).

Average rainfall in May - Defiance, OH
  • Average rainfall in May: 82mm

The wettest month (with the highest rainfall) is April (85mm).
The driest month (with the least rainfall) is December (39mm).

Average rainfall days in May - Defiance, OH
  • Average rainfall days in May: 19 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (8.3 days).

Average snowfall in May - Defiance, OH
  • Average snowfall in May: 2mm

The month with the highest snowfall is January (97mm).
Months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in May - Defiance, OH
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (13.2 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Defiance, OH
  • 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: 8.7h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 3.4h).

Average sunshine days in May - Defiance, OH
  • Average sunshine days in May: 10.1 days

The month with the most sunshine days is October (15.7 days).
The month with the least sunshine days is May (10.1 days).

Average UV index in May - Defiance, OH
  • Average UV index in May: 5

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

Average cloud cover in May - Defiance, OH
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in May - Defiance, OH
  • Average visibility in May: 9km

Months with the highest visibility are February, March, April, May, June, July, October, November and December (9km).
Months with the lowest visibility are January, August and September (8km).