May weather forecast
Lewistown, OH

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Weather in May

May, the last month of the spring in Lewistown, is a pleasant month, with an average temperature fluctuating between 53.4°F (11.9°C) and 70.3°F (21.3°C).

Temperature

The average high-temperature increases in May, moving from a mild 58.6°F (14.8°C) in April to a pleasant 70.3°F (21.3°C). In May, Lewistown's temperature tends to fall to an average low of 53.4°F (11.9°C) during the night.

Humidity

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

Rainfall

The month with the most rainfall in Lewistown is May, when the rain falls for 20.1 days and typically aggregates up to 4.02" (102mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Lewistown. May is the last month it regularly snows in Lewistown, Ohio. During 0.2 snowfall days, in May, Lewistown aggregates 0.04" (1mm) of snow. In Lewistown, during the entire year, snow falls for 47.4 days and aggregates up to 15.63" (397mm) of snow.

Daylight

In May, the average length of the day in Lewistown is 14h and 26min.
On the first day of May in Lewistown, Ohio, sunrise is at 6:33 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:59 pm EDT.

Sunshine

In Lewistown, the average sunshine in May is 8.7h.

UV index

In Lewistown, Ohio, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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Frequently asked questions

What is the average May temperature in Lewistown?

The high-temperature, in May, in Lewistown, is 70.3°F (21.3°C), while the low-temperature averages to 53.4°F (11.9°C).

What is the average humidity in May in Lewistown?

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

What is the wettest month in Lewistown?

May is the month with the most rainfall. Rain falls for 20.1 days and accumulates 4.02" (102mm) of precipitation.

How many days does it rain in May in Lewistown?

In Lewistown, in May, it is raining for 20.1 days, with typically 4.02" (102mm) of accumulated precipitation.

What is the last month it snows in Lewistown?

May is the last month it regularly snows in Lewistown. During 0.2 snowfall days, in May, Lewistown aggregates 0.04" (1mm) of snow.

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

The average day length in May in Lewistown, Ohio, is 14h and 26min.

When is the sunrise / sunset in May in Lewistown?

On the first day of May, sunrise is at 6:33 am and sunset at 8:31 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 8:59 pm EDT.

How long on average sun shines in May in Lewistown?

The average sunshine duration in May in Lewistown is 8.7h.

What is the UV index reading in May in Lewistown?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from 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
Lewistown, OH

Average temperature in May - Lewistown, OH
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in May: 53.4°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in May
Lewistown, OH

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

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Lewistown, OH

Average wind speed in May - Lewistown, OH
  • Average wind speed in May: 8.3mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in May
Lewistown, OH

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

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in May
Lewistown, OH

Average rainfall in May - Lewistown, OH
  • Average rainfall in May: 4.02"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is November (2.13").

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Average rainfall days in May
Lewistown, OH

Average rainfall days in May - Lewistown, OH
  • Average rainfall days in May: 20.1 days

The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in May
Lewistown, OH

Average snowfall in May - Lewistown, OH
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (4.33").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Lewistown, OH

Average snowfall days in May - Lewistown, OH
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (12.6 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
Lewistown, OH

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

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Average sunshine days in May
Lewistown, OH

Average sunshine days in May - Lewistown, OH
  • Average sunshine days in May: 8.8 days

The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is July (8.5 days).

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Average UV index in May
Lewistown, OH

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

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Lewistown, OH

Average cloud cover in May - Lewistown, OH
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in May
Lewistown, OH

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

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

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Lewistown, Ohio, USA

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