May weather forecast and climate
Hartwell, OH

May, the last month of the spring, in Hartwell, is a pleasant month, with average temperature varying between 55.9°F (13.3°C) and 73.2°F (22.9°C).

Temperature

In Hartwell, the average high-temperature in May increases, from an enjoyable 63.1°F (17.3°C) in April, to an agreeable 73.2°F (22.9°C). The average low-temperature, in May, is 55.9°F (13.3°C).

Humidity

In May, the average relative humidity is 78%.

Rainfall

The month with the most rainfall in Hartwell is May when the rain falls for 13.8 days and typically aggregates up to 1.42" (36mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Hartwell, the average length of the day in May is 14.4h.

Sunshine

In May, the average sunshine is 8.9h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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.

What is the temperature in May in Hartwell?

The average high-temperature, in May, in Hartwell, Ohio, is 73.2°F (22.9°C), while the average low-temperature is 55.9°F (13.3°C).

What is the average humidity in May in Hartwell?

In Hartwell, Ohio, the average relative humidity in May is 78%.

How many days does it rain in May in Hartwell?

In Hartwell, in May, it is raining for 13.8 days, with typically 1.42" (36mm) of accumulated precipitation.

What is the rainiest month in Hartwell?

The month with the most rainfall in Hartwell is May when the rain falls for 13.8 days and typically aggregates up to 1.42" (36mm) of precipitation.

Does it snow in Hartwell in May?

In May, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Hartwell?

May through October are months without snowfall in Hartwell, Ohio.

How many hours of daylight does Hartwell have in May?

In May, the average length of the day in Hartwell, Ohio, is 14.4h.

How long on average sun shines in May in Hartwell?

The average sunshine in May is 8.9h.

When is the highest UV index in Hartwell?

Months with the highest UV index in Hartwell are May through August, with an average maximum UV index of 6.

What is the UV index reading in May in Hartwell?

The average daily maximum UV index in May in Hartwell, Ohio, is 6. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation.
Average temperature in May - Hartwell, OH
  • Average high temperature in May: 22.9°C

The warmest month (with the highest average high temperature) is July (28.9°C).
The month with the lowest average high temperature is January (1.8°C).

  • Average low temperature in May: 13.3°C

The month with the highest average low temperature is July (19.1°C).
The coldest month (with the lowest average low temperature) is January (-4.9°C).

Average pressure in May - Hartwell, OH
  • Average pressure in May: 1015.2mbar

The month with the highest atmospheric pressure is January (1020.7mbar).
The month with the lowest atmospheric pressure is June (1013.9mbar).

Average wind speed in May - Hartwell, OH
  • Average wind speed in May: 11.1km/h

The windiest month (with the highest average wind speed) is January (14.3km/h).
The calmest months (with the lowest average wind speed) are July and August (8.4km/h).

Average humidity in May - Hartwell, OH
  • Average humidity in May: 78%

The month with the highest relative humidity is December (81%).
Months with the lowest relative humidity are August, September and October (74%).

Average rainfall in May - Hartwell, OH
  • Average rainfall in May: 36mm

The wettest month (with the highest rainfall) is May (36mm).
The driest month (with the least rainfall) is September (16mm).

Average rainfall days in May - Hartwell, OH
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is November (6.5 days).

Average snowfall in May - Hartwell, OH
  • Average snowfall in May: 0mm

The month with the highest snowfall is January (24mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in May - Hartwell, OH
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (6.1 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May / Average sunshine in May - Hartwell, OH
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in May: 8.9h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4h).

Average sunshine days in May - Hartwell, OH
  • Average sunshine days in May: 14.5 days

The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is June (14 days).

Average UV index in May - Hartwell, OH
  • Average UV index in May: 6

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

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

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 26).

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

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