May weather forecast and climate
Harrell, AL

Weather in May

May, the last month of the spring, in Harrell, is another warm month, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 62.2°F (16.8°C).

Temperature

In May, the average high-temperature slightly increases, from 76.6°F (24.8°C) in April, to a still warm 84°F (28.9°C). The average low-temperature, in Harrell, Alabama, is 62.2°F (16.8°C).

Heat index

In May, the average heat index is appraised at a tropical 91.2°F (32.9°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, wind, pregnancy). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

The average relative humidity is 72%.

Rainfall

In Harrell, during May, the rain falls for 14.1 days and regularly aggregates up to 3.15" (80mm) of precipitation. Throughout the year, there are 165 rainfall days, and 37.17" (944mm) of precipitation is accumulated.

Snowfall

In Harrell snow does not fall in April through November.

Daylight

The average length of the day in May is 13.8h.

Sunshine

In Harrell, the average sunshine in May is 10.2h.

UV index

The average daily maximum UV index in Harrell is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in May interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Harrell?

In May, the average high-temperature is 84°F (28.9°C), and the average low-temperature is 62.2°F (16.8°C). In May, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that factores the actual air temperature with the relative humidity, is appraised at 91.2°F (32.9°C).

What is the average humidity in May in Harrell?

The average relative humidity in May in Harrell, Alabama, is 72%.

How many days does it rain in May in Harrell?

In Harrell, in May, it is raining for 14.1 days, with typically 3.15" (80mm) of accumulated precipitation.

When it does not snow in Harrell?

In Harrell snow does not fall in April through November.

How many hours of daylight does Harrell have in May?

The average length of the day in May in Harrell, Alabama, is 13.8h.

How many hours of sunshine does Harrell have in May?

The average sunshine in May is 10.2h.

What is the UV index reading in May in Harrell?

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

Average temperature in May
Harrell, AL

Average temperature in May - Harrell, AL
  • Average high temperature in May: 84°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (54.3°F).

  • Average low temperature in May: 62.2°F

Months with the highest average low temperature are July and August (72°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

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Average pressure in May
Harrell, AL

Average pressure in May - Harrell, AL
  • Average pressure in May: 30"

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

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Average wind speed in May
Harrell, AL

Average wind speed in May - Harrell, 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 (4.7mph).

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Average humidity in May
Harrell, AL

Average humidity in May - Harrell, 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 (69%).

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Average rainfall in May
Harrell, AL

Average rainfall in May - Harrell, AL
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (1.93").

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Average rainfall days in May
Harrell, AL

Average rainfall days in May - Harrell, AL
  • Average rainfall days in May: 14.1 days

The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall in May
Harrell, AL

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

The month with the highest snowfall is January (0.35").
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
Harrell, AL

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

The month with the highest number of snowfall days is January (0.8 days).
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
Harrell, AL

Average daylight in May / Average sunshine in May - Harrell, AL
  • Average daylight in May: 13.8h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in May: 10.2h

The month with the most sunshine is June (Average sunshine: 10.6h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

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Average sunshine days in May
Harrell, AL

Average sunshine days in May - Harrell, AL
  • Average sunshine days in May: 15.1 days

The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is July (8 days).

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Average UV index in May
Harrell, AL

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

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

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Average cloud cover in May
Harrell, AL

Average cloud cover in May - Harrell, AL
  • Average cloud cover in May: 33

Months with the most cloud cover are February and December (Cloud cover 47).
Months with the least cloud cover are September and October (Cloud cover 30).

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Average visibility in May
Harrell, AL

Average visibility in May - Harrell, AL
  • Average visibility in May: 6mi

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

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