May weather forecast
Harrisburg, OH

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Weather in May

May, the last month of the spring in Harrisburg, is a pleasant month, with an average temperature ranging between max 71.4°F (21.9°C) and min 54.7°F (12.6°C).

Temperature

The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a refreshing 61.3°F (16.3°C) in April to an agreeable 71.4°F (21.9°C). In May, Harrisburg experiences a temperature dip to an average of 54.7°F (12.6°C) at night.

Humidity

In May, the average relative humidity is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 15.8 days and accumulates 1.81" (46mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day is 14h and 23min.
On the first day of May, sunrise is at 6:31 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:54 pm EDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index in Harrisburg. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during May morphs into the following directions:
Resist overexposure. Safeguarding from solar damage is indispensable. 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-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

The high-temperature during May is 71.4°F (21.9°C) and the low-temperature is 54.7°F (12.6°C).

What is the average humidity in May?

In Harrisburg, the average relative humidity in May is 79%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 15.8 days and typically aggregates up to 1.81" (46mm) of precipitation.

How much does it rain in Harrisburg in May?

In Harrisburg, during May, the rain falls for 15.8 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in May?

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

What is the average length of the day in May?

In May, the average day length is 14h and 23min.

What time are sunrise and sunset in May?

On the first day of May in Harrisburg, sunrise is at 6:31 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:06 am and sunset at 8:54 pm EDT.

How long on average sun shines in May in Harrisburg?

In Harrisburg, the average sunshine duration in May is 9.1h.

What are the months with the highest UV index in Harrisburg?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in May?

In Harrisburg, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Harrisburg, OH

Average temperature in May - Harrisburg, OH
  • Average high temperature in May: 71.4°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in May: 54.7°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in May
Harrisburg, OH

Average pressure in May - Harrisburg, OH
  • Average pressure in May: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Harrisburg, OH

Average wind speed in May - Harrisburg, OH
  • Average wind speed in May: 7.5mph

The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in May
Harrisburg, OH

Average humidity in May - Harrisburg, OH
  • Average humidity in May: 79%

The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).

Average rainfall in May
Harrisburg, OH

Average rainfall in May - Harrisburg, OH
  • Average rainfall in May: 1.81"

The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is September (0.87").

Average rainfall days in May
Harrisburg, OH

Average rainfall days in May - Harrisburg, OH
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in May
Harrisburg, OH

Average snowfall in May - Harrisburg, OH
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.22").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Harrisburg, OH

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

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Harrisburg, OH

Average daylight in May / Average sunshine in May - Harrisburg, OH
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in May
Harrisburg, OH

Average sunshine days in May - Harrisburg, OH
  • Average sunshine days in May: 11.5 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is May (11.5 days).

Average UV index in May
Harrisburg, OH

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Harrisburg, OH

Average cloud cover in May - Harrisburg, OH
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May
Harrisburg, OH

Average visibility in May - Harrisburg, OH
  • Average visibility in May: 6mi

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

Harrisburg, Ohio, USA

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