May weather forecast
New Castle, IN

Weather in May

May, the last month of the spring in New Castle, is an agreeable month, with an average temperature ranging between min 54.7°F (12.6°C) and max 71.2°F (21.8°C).

Temperature

In New Castle, the average high-temperature in May rises from a mild 60.4°F (15.8°C) in April to a pleasant 71.2°F (21.8°C). In New Castle, in May, the average low-temperature is 54.7°F (12.6°C).

Humidity

In May, the average relative humidity is 80%.

Rainfall

May is the month with the most rainfall. Rain falls for 19.7 days and accumulates 3.9" (99mm) of precipitation.

Snowfall

In New Castle, Indiana, snow does not fall through September.

Daylight

In New Castle, the average length of the day in May is 14h and 24min.
On the first day of the month, sunrise is at 6:41 am and sunset at 8:35 pm. On the last day of May, in New Castle, sunrise is at 6:15 am and sunset at 9:03 pm EDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in May in New Castle?

In New Castle, the average relative humidity in May is 80%.

What is the wettest month in New Castle?

May is the month with the most rainfall. Rain falls for 19.7 days and accumulates 3.9" (99mm) of precipitation.

How much does it rain in New Castle in May?

In New Castle, in May, it is raining for 19.7 days, with typically 3.9" (99mm) of accumulated precipitation.

When it does not snow in New Castle?

In New Castle, Indiana, snow does not fall in May through September.

Does it snow in New Castle 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 New Castle?

The average day length in May in New Castle, Indiana, is 14h and 24min.

When are sunrise and sunset in May in New Castle?

On the first day of May, sunrise is at 6:41 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 9:03 pm EDT.

How many hours of sunshine does New Castle have in May?

In New Castle, the average sunshine duration in May is 8.6h.

What is the month with the highest UV index in New Castle?

May through July, with an average maximum UV index of 6, are months with the highest UV index in New Castle, Indiana.

How high is the UV index in May in New Castle?

In New Castle, Indiana, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
New Castle, IN

Average temperature in May - New Castle, IN
  • Average high temperature in May: 71.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).

  • Average low temperature in May: 54.7°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in May
New Castle, IN

Average pressure in May - New Castle, IN
  • Average pressure in May: 29.97"Hg

The months with the highest atmospheric pressure are January and 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
New Castle, IN

Average wind speed in May - New Castle, IN
  • Average wind speed in May: 8.2mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in May
New Castle, IN

Average humidity in May - New Castle, IN
  • Average humidity in May: 80%

The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in May
New Castle, IN

Average rainfall in May - New Castle, IN
  • Average rainfall in May: 3.9"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is February (1.85").

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Average rainfall days in May
New Castle, IN

Average rainfall days in May - New Castle, IN
  • Average rainfall days in May: 19.7 days

The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in May
New Castle, IN

Average snowfall in May - New Castle, IN
  • Average snowfall in May: 0"

The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
New Castle, IN

Average snowfall days in May - New Castle, IN
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (12.8 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
New Castle, IN

Average daylight in May / Average sunshine in May - New Castle, IN
  • Average daylight in May: 14h and 24min

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 23min).

  • Average sunshine in May: 8h and 36min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in May
New Castle, IN

Average sunshine days in May - New Castle, IN
  • Average sunshine days in May: 9.1 days

The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is May (9.1 days).

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Average UV index in May
New Castle, IN

Average UV index in May - New Castle, IN
  • Average UV index in May: 6

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

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Average cloud cover in May
New Castle, IN

Average cloud cover in May - New Castle, IN
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in May
New Castle, IN

Average visibility in May - New Castle, IN
  • 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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