May weather forecast
McWilliams, AL

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Weather in May

The last month of the spring, May, is also a moderately hot month in McWilliams, Alabama, with an average temperature ranging between min 62.6°F (17°C) and max 85.3°F (29.6°C).

Temperature

The commencement of May sees a minor shift in the average high-temperature, moving from a moderately hot 77.7°F (25.4°C) in April to a still warm 85.3°F (29.6°C). Despite drastic daytime highs, McWilliams logs an average low-temperature reading of 62.6°F (17°C) throughout May.

Heat index

The heat index for May is calculated to be a torrid 95°F (35°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Data suggests that the heat index is set for environments in shade and with a light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In McWilliams, the average relative humidity in May is 72%.

Rainfall

In McWilliams, Alabama, in May, it is raining for 13.9 days, with typically 2.99" (76mm) of accumulated precipitation. In McWilliams, Alabama, during the entire year, the rain falls for 171.5 days and collects up to 35.47" (901mm) of precipitation.

Snowfall

In McWilliams, snow does not fall in April through November.

Daylight

In May, the average length of the day is 13h and 47min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:28 pm. On the last day of May, in McWilliams, sunrise is at 5:43 am and sunset at 7:48 pm CDT.

Sunshine

In McWilliams, the average sunshine in May is 10.1h.

UV index

In May, the average daily maximum UV index in McWilliams is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 6 during May translates into these guidelines:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
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Frequently asked questions

How hot is it in McWilliams in May?

The high-temperature, in May, in McWilliams, is 85.3°F (29.6°C), while the low-temperature averages to 62.6°F (17°C). In May, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is calculated to be 95°F (35°C).

What is the average humidity in May in McWilliams?

In McWilliams, the average relative humidity in May is 72%.

How many days does it rain in May in McWilliams?

In McWilliams, in May, it is raining for 13.9 days, with typically 2.99" (76mm) of accumulated precipitation.

When it does not snow in McWilliams?

In McWilliams, snow does not fall in April through November.

How many hours of daylight does McWilliams have in May?

In May, the average day length in McWilliams is 13h and 47min.

What time are sunrise and sunset in May in McWilliams?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:28 pm. On the last day of the month, in McWilliams, sunrise is at 5:43 am and sunset at 7:48 pm CDT.

How many hours of sunshine does McWilliams have in May?

In McWilliams, Alabama, the average sunshine duration in May is 10.1h.

What is the UV index intensity in May in McWilliams?

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
McWilliams, AL

Average temperature in May - McWilliams, AL
  • Average high temperature in May: 85.3°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (55.9°F).

  • Average low temperature in May: 62.6°F

The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).

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Average pressure in May
McWilliams, AL

Average pressure in May - McWilliams, AL
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).

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Average wind speed in May
McWilliams, AL

Average wind speed in May - McWilliams, AL
  • Average wind speed in May: 5.5mph

The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

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Average humidity in May
McWilliams, AL

Average humidity in May - McWilliams, AL
  • Average humidity in May: 72%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
McWilliams, AL

Average rainfall in May - McWilliams, AL
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is November (1.93").

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Average rainfall days in May
McWilliams, AL

Average rainfall days in May - McWilliams, AL
  • Average rainfall days in May: 13.9 days

The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall in May
McWilliams, AL

Average snowfall in May - McWilliams, AL
  • Average snowfall in May: 0"

The month with the highest snowfall is March (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
McWilliams, AL

Average snowfall days in May - McWilliams, AL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.6 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
McWilliams, AL

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

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 10h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in May
McWilliams, AL

Average sunshine days in May - McWilliams, AL
  • Average sunshine days in May: 15.2 days

The months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (6.6 days).

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Average UV index in May
McWilliams, AL

Average UV index in May - McWilliams, AL
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in May
McWilliams, AL

Average cloud cover in May - McWilliams, AL
  • Average cloud cover in May: 34

The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 31).

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Average visibility in May
McWilliams, AL

Average visibility in May - McWilliams, AL
  • Average visibility in May: 5mi

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

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McWilliams, Alabama, USA

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