May weather forecast
Waterloo, KY

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Weather in May

May, the last month of the spring in Waterloo, is a moderately hot month, with an average temperature ranging between min 55.4°F (13°C) and max 73.9°F (23.3°C).

Temperature

The average high-temperature increases in May, moving from an enjoyable 63.9°F (17.7°C) in April to a moderately hot 73.9°F (23.3°C). In May, the average low-temperature in Waterloo records at a moderate 55.4°F (13°C) during the nights.

Humidity

In May, the average relative humidity is 80%.

Rainfall

In Waterloo, in May, during 19.1 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 167 rainfall days, and 30.39" (772mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in May is 14h and 19min.
On the first day of May, sunrise is at 6:40 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:58 pm EDT.

Sunshine

In May, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Jul 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

During May, Waterloo experiences an average high-temperature of 73.9°F (23.3°C) and a low-temperature of 55.4°F (13°C).

What is the average humidity in May?

The average relative humidity in May is 80%.

How much does it rain in May?

In Waterloo, in May, it is raining for 19.1 days, with typically 3.31" (84mm) of accumulated precipitation.

When it does not snow?

In Waterloo, snow does not fall in May through October.

Does it snow in May?

In May, it doesn't snow. April is the latest month when it typically snows.

What is the average length of the day in May?

The average day length in May is 14h and 19min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 6:40 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:58 pm EDT.

How many hours of sunshine does Waterloo have in May?

The average sunshine duration in May is 8.7h.

What is the UV index reading in May?

In May, the average daily maximum UV index in Waterloo is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat 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
Waterloo, KY

Average temperature in May - Waterloo, KY
  • Average high temperature in May: 73.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in May: 55.4°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).

Average pressure in May
Waterloo, KY

Average pressure in May - Waterloo, KY
  • Average pressure in May: 29.98"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
Waterloo, KY

Average wind speed in May - Waterloo, KY
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in May
Waterloo, KY

Average humidity in May - Waterloo, KY
  • Average humidity in May: 80%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).

Average rainfall in May
Waterloo, KY

Average rainfall in May - Waterloo, KY
  • Average rainfall in May: 3.31"

The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is September (1.73").

Average rainfall days in May
Waterloo, KY

Average rainfall days in May - Waterloo, KY
  • Average rainfall days in May: 19.1 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (9.7 days).

Average snowfall in May
Waterloo, KY

Average snowfall in May - Waterloo, KY
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Waterloo, KY

Average snowfall days in May - Waterloo, KY
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (9.8 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
Waterloo, KY

Average daylight in May / Average sunshine in May - Waterloo, KY
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in May
Waterloo, KY

Average sunshine days in May - Waterloo, KY
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in May
Waterloo, KY

Average UV index in May - Waterloo, KY
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in May
Waterloo, KY

Average cloud cover in May - Waterloo, KY
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in May
Waterloo, KY

Average visibility in May - Waterloo, KY
  • Average visibility in May: 5mi

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

Waterloo, Kentucky, USA

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