May weather forecast
Huntsville, AL

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The colorful neon lights that lit up the buildings and roads of Huntsville in Alabama
The colorful neon lights that lit up the buildings and roads of Huntsville in Alabama

Weather in May

May endorses the progression towards summer with noticeably warmer temperatures in Huntsville. Daytime temperatures in May climb up to a significant 77.9°F (25.5°C), charting the transition towards the hot season. This hike in temperature is accompanied by the longest daylight hours in the year, offering extensive time to indulge in outdoorsy pursuits. The frequent showers continue, providing welcome respite from the budding warmth. Therefore, May encapsulates the transition from spring to summer with rising mercury levels and prolonged daylight.

Temperature

The transition from April to May brings a subtle temperature rise, with average high-temperatures increasing from an agreeable 70°F (21.1°C) to a warm 77.9°F (25.5°C). Huntsville records an average nighttime low of 58.6°F (14.8°C) in May.

Humidity

In May, the average relative humidity is 77%.

Rainfall

In Huntsville, in May, it is raining for 16.6 days, with typically 3.43" (87mm) of accumulated precipitation. Throughout the year, there are 171.9 rainfall days, and 42.36" (1076mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Huntsville, the average length of the day in May is 14h and 0min.
On the first day of the month, sunrise is at 5:55 am and sunset at 7:31 pm. On the last day of May, sunrise is at 5:34 am and sunset at 7:54 pm CDT.

Sunshine

In May, the average sunshine is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 6 during May leads to these instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

What are May temperatures?

May temperatures vary between a high-temperature of 77.9°F (25.5°C) and a low-temperature of 58.6°F (14.8°C).

What is the average humidity in May?

In Huntsville, the average relative humidity in May is 77%.

How much does it rain in May?

In Huntsville, in May, during 16.6 rainfall days, 3.43" (87mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in May?

In Huntsville, the average day length in May is 14h and 0min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 7:54 pm CDT.

How many hours of sunshine does Huntsville have in May?

In Huntsville, the average sunshine duration in May is 9.5h.

When is the highest UV index?

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

What is the UV index intensity in May?

In Huntsville, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes 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
Huntsville, AL

Average temperature in May - Huntsville, AL
  • Average high temperature in May: 77.9°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (46.9°F).

  • Average low temperature in May: 58.6°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).

Average pressure in May
Huntsville, AL

Average pressure in May - Huntsville, 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).

Average wind speed in May
Huntsville, AL

Average wind speed in May - Huntsville, AL
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in May
Huntsville, AL

Average humidity in May - Huntsville, AL
  • Average humidity in May: 77%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Huntsville, AL

Average rainfall in May - Huntsville, AL
  • Average rainfall in May: 3.43"

The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is September (2.17").

Average rainfall days in May
Huntsville, AL

Average rainfall days in May - Huntsville, AL
  • Average rainfall days in May: 16.6 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in May
Huntsville, AL

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

The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Huntsville, AL

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

The month with the highest number of snowfall days is January (1.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Huntsville, AL

Average daylight in May / Average sunshine in May - Huntsville, AL
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 9h and 3min

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 30min).

Average sunshine days in May
Huntsville, AL

Average sunshine days in May - Huntsville, AL
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in May
Huntsville, AL

Average UV index in May - Huntsville, 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 and December (UV index 2).

Average cloud cover in May
Huntsville, AL

Average cloud cover in May - Huntsville, AL
  • Average cloud cover in May: 37

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in May
Huntsville, AL

Average visibility in May - Huntsville, 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).

Huntsville, Alabama, USA

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