May weather forecast
Henderson, KY

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Weather in May

Moving into May, Henderson witnesses further warming of the climate with temperatures ranging from 58.5°F (14.7°C) to 74.8°F (23.8°C). These conditions pave the way for outdoor events, with locals and visitors taking advantage of the pleasant temperatures. Despite experiencing the highest relative humidity of 80%, the amount of rainfall remains consistent with the prior month. This is a month of noticeable change with the increasingly longer days and higher UV index making sunscreen and protective clothing necessary. Winds remain relatively mild, creating a balance in the general weather conditions.

Temperature

As Henderson transitions into May, the average high-temperature shows a change, moving from a comfortable 65.8°F (18.8°C) in April to a moderately hot 74.8°F (23.8°C). Nightly temperatures in Henderson drop to an average low of 58.5°F (14.7°C) in May.

Humidity

The most humid month is May, with an average relative humidity of 80%.

Rainfall

In May, in Henderson, the rain falls for 14.4 days. Throughout May, 1.61" (41mm) of precipitation is accumulated. Throughout the year, there are 131.7 rainfall days, and 15.47" (393mm) of precipitation is accumulated.

Snowfall

In Henderson, snow does not fall in April through October.

Daylight

In May, the average length of the day in Henderson is 14h and 14min.
On the first day of the month, sunrise is at 5:53 am and sunset at 7:41 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:06 pm CDT.

Sunshine

In Henderson, the average sunshine in May is 9.4h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during May translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the average May temperature in Henderson?

The average high-temperature and low-temperature in Henderson, Kentucky, during May are 74.8°F (23.8°C) and 58.5°F (14.7°C) respectively.

What is the most humid month in Henderson?

May is the most humid month in Henderson, with an average relative humidity of 80%.

What is the average humidity in May in Henderson?

The average relative humidity in May in Henderson, Kentucky, is 80%.

How many days does it rain in May in Henderson?

In Henderson, in May, it is raining for 14.4 days, with typically 1.61" (41mm) of accumulated precipitation.

When it does not snow in Henderson?

In Henderson, Kentucky, snow does not fall in April through October.

What is the average length of the day in May in Henderson?

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

What time are sunrise and sunset in May in Henderson?

In May, on the first day of the month, sunrise is at 5:53 am and sunset at 7:41 pm. On the last day of the month, in Henderson, Kentucky, sunrise is at 5:29 am and sunset at 8:06 pm CDT.

How many hours of sunshine does Henderson have in May?

In Henderson, the average sunshine duration in May is 9.4h.

What are the months with the highest UV index in Henderson?

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

What is the UV index reading in May in Henderson?

In May, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMayJJASOND
Apr
May
Jun
Average high temperature
65.8°F 18.8°C
74.8°F 23.8°C
83.3°F 28.5°C
Average low temperature
49.1°F 9.5°C
58.5°F 14.7°C
66.6°F 19.2°C
Average pressure
29.96" 761mmHg
29.98" 761mmHg
29.95" 761mmHg
Average wind speed
9.8mph 15.8km/h
8.2mph 13.2km/h
6.8mph 10.9km/h
Average max. wind speed
10.6mph 17.1km/h
8.8mph 14.2km/h
7.3mph 11.7km/h
Average wind speed gusts
16.1mph 25.9km/h
13.4mph 21.6km/h
11.2mph 18km/h
Average humidity
77%
80%
78%
Average rainfall
1.65" 42mm
1.61" 41mm
1.46" 37mm
Average rainfall days
12.9
14.4
12.8
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0.3
0
0
Average daylight
13h 1min
14h 1min
14h 4min
Average sunshine
8h 5min
9h 2min
10h 4min
Average sunshine days
14.7
13.2
13.3
Average UV index
5
6
6
Average cloud cover
40%
37%
27%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in May
Henderson, KY

Average temperature in May - Henderson, KY
  • Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (39.4°F).

  • Average low temperature in May: 58.5°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).

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Average pressure in May
Henderson, KY

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in May
Henderson, KY

Average wind speed in May - Henderson, KY
  • Average wind speed in May: 8.2mph

The windiest month (with the highest average wind speed) is February (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in May
Henderson, KY

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

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

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Average rainfall in May
Henderson, KY

Average rainfall in May - Henderson, KY
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is April (1.65").
The driest month (with the least rainfall) is September (0.67").

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Average rainfall days in May
Henderson, KY

Average rainfall days in May - Henderson, KY
  • Average rainfall days in May: 14.4 days

The months with the highest number of rainy days are May and July (14.4 days).
The month with the least rainy days is November (7.8 days).

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Average snowfall in May
Henderson, KY

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

The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Henderson, KY

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

The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Henderson, KY

Average daylight in May / Average sunshine in May - Henderson, KY
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 2min

The months with the most sunshine are June, July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in May
Henderson, KY

Average sunshine days in May - Henderson, KY
  • Average sunshine days in May: 13.2 days

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is July (13.1 days).

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Average UV index in May
Henderson, KY

Average UV index in May - Henderson, KY
  • 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, February and December (UV index 2).

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Average cloud cover in May
Henderson, KY

Average cloud cover in May - Henderson, KY
  • Average cloud cover in May: 37

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).

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Average visibility in May
Henderson, KY

Average visibility in May - Henderson, KY
  • 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).

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Henderson, Kentucky, USA

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