May weather forecast
New Castle, AL

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Weather in May

May, the last month of the spring in New Castle, is a warm month, with temperature in the range of an average high of 81°F (27.2°C) and an average low of 60.6°F (15.9°C).

Temperature

The embrace of May brings a minor uplift in the average high-temperature, shifting from an agreeable 72.9°F (22.7°C) in April to a moderately hot 81°F (27.2°C). In May, the temperature in New Castle drops to an average of 60.6°F (15.9°C) at night.

Heat index

May's average heat index is computed to be a hot 86°F (30°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
Keep in mind the heat index values are meant for areas in shade and with light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in May in New Castle is 74%.

Rainfall

In New Castle, during May, the rain falls for 15.8 days and regularly aggregates up to 3.03" (77mm) of precipitation. In New Castle, Alabama, during the entire year, the rain falls for 173.8 days and collects up to 39.41" (1001mm) of precipitation.

Snowfall

April through October are months without snowfall in New Castle.

Daylight

In New Castle, the average length of the day in May is 13h and 55min.
On the first day of May in New Castle, sunrise is at 5:57 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 7:52 pm CDT.

Sunshine

The average sunshine in May is 10.1h.

UV index

May through August, 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 health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: During May, 6 as the daily maximum UV index converts into the following advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What are May temperatures in New Castle?

May temperatures vary between a high-temperature of 81°F (27.2°C) and a low-temperature of 60.6°F (15.9°C). In May, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is computed to be 86°F (30°C).

What is the average humidity in May in New Castle?

In New Castle, the average relative humidity in May is 74%.

How many days does it rain in May in New Castle?

In May, in New Castle, Alabama, the rain falls for 15.8 days. Throughout May, 3.03" (77mm) of precipitation is accumulated.

When it does not snow in New Castle?

April through October are months without snowfall in New Castle.

What is the average length of the day in May in New Castle?

In New Castle, the average day length in May is 13h and 55min.

When are sunrise and sunset in May in New Castle?

In May, on the first day of the month, sunrise is at 5:57 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 7:52 pm CDT.

How long on average sun shines in May in New Castle?

In May, the average sunshine duration is 10.1h.

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

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

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

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
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
New Castle, AL

Average temperature in May - New Castle, AL
  • Average high temperature in May: 81°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in May: 60.6°F

The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

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Average pressure in May
New Castle, AL

Average pressure in May - New Castle, AL
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

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Average wind speed in May
New Castle, AL

Average wind speed in May - New Castle, AL
  • Average wind speed in May: 5.7mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

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Average humidity in May
New Castle, AL

Average humidity in May - New Castle, AL
  • Average humidity in May: 74%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
New Castle, AL

Average rainfall in May - New Castle, AL
  • Average rainfall in May: 3.03"

The wettest month (with the highest rainfall) is December (4.09").
The driest month (with the least rainfall) is October (2.09").

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Average rainfall days in May
New Castle, AL

Average rainfall days in May - New Castle, AL
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is July (21.7 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in May
New Castle, AL

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

The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
New Castle, AL

Average snowfall days in May - New Castle, AL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
New Castle, AL

Average daylight in May / Average sunshine in May - New Castle, AL
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in May
New Castle, AL

Average sunshine days in May - New Castle, AL
  • Average sunshine days in May: 13.9 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (7.2 days).

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Average UV index in May
New Castle, AL

Average UV index in May - New Castle, AL
  • 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 3).

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Average cloud cover in May
New Castle, AL

Average cloud cover in May - New Castle, AL
  • Average cloud cover in May: 32

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 29).

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Average visibility in May
New Castle, AL

Average visibility in May - New Castle, AL
  • 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).

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New Castle, Alabama, USA

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