May weather forecast and climate
Cullman, AL

May, the last month of the spring, in Cullman, is a moderately hot month, with average temperature ranging between max 79.3°F (26.3°C) and min 59.7°F (15.4°C).

Temperature

In May, the average high-temperature slightly increases, from a pleasant 71.4°F (21.9°C) in April, to a moderately hot 79.3°F (26.3°C). The average low-temperature, in May, is 59.7°F (15.4°C).

Humidity

In Cullman, Alabama, the average relative humidity is 76%.

Rainfall

In Cullman, during 16 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Cullman, during the entire year, the rain falls for 176.2 days and collects up to 40.43" (1027mm) of precipitation.

Snowfall

In Cullman, Alabama, snow does not fall in April through October.

Daylight

The average length of the day is 14h.

Sunshine

In May, the average sunshine is 9.8h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in May in Cullman?

The average high-temperature, in May, in Cullman, Alabama, is 79.3°F (26.3°C), while the average low-temperature is 59.7°F (15.4°C).

What is the average humidity in May in Cullman?

In May, the average relative humidity is 76%.

How much does it rain in Cullman in May?

In Cullman, Alabama, during May, the rain falls for 16 days and regularly aggregates up to 3.15" (80mm) of precipitation.

When it does not snow in Cullman?

In Cullman, Alabama, snow does not fall in April through October.

How many hours of daylight does Cullman have in May?

The average length of the day in May in Cullman, Alabama, is 14h.

How many hours of sunshine does Cullman have in May?

The average sunshine in May is 9.8h.

When is the highest UV index in Cullman?

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

How high is the UV index in May in Cullman?

In May, the average daily maximum UV index in Cullman is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to the Sun's UV rays.
Average temperature in May - Cullman, AL
  • Average high temperature in May: 79.3°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (48.9°F).

  • Average low temperature in May: 59.7°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (34°F).

Average pressure in May - Cullman, AL
  • Average pressure in May: 30.01"

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

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

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.6mph).

Average humidity in May - Cullman, AL
  • Average humidity in May: 76%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).

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

The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is November (2.36").

Average rainfall days in May - Cullman, AL
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is November (10.1 days).

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

The month with the highest snowfall is January (0.67").
Months with the least snowfall are April, May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is February (1.5 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May / Average sunshine in May - Cullman, AL
  • Average daylight in May: 14h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 9.8h

The month with the most sunshine is June (Average sunshine: 10.5h).
The month with the least sunshine is February (Average sunshine: 4.7h).

Average sunshine days in May - Cullman, AL
  • Average sunshine days in May: 13.3 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (8.6 days).

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

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).

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

The month with the most cloud cover is February (Cloud cover 49).
Months with the least cloud cover are June and September (Cloud cover 30).

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

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