May weather forecast
Norwalk, FL

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Weather in May

The last month of the spring, May, is a tropical month in Norwalk, Florida, with an average temperature fluctuating between 67.3°F (19.6°C) and 86.5°F (30.3°C).

Temperature

With the advent of May, Norwalk experiences an average high-temperature of a hot 86.5°F (30.3°C), mirroring a close resemblance to the previous month. Throughout May, the temperature tends to fall to a consistent average low of 67.3°F (19.6°C).

Heat index

The heat index value for May is calculated to be a very hot 98.6°F (37°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In May, the average relative humidity in Norwalk is 73%.

Rainfall

In Norwalk, during May, the rain falls for 13 days and regularly aggregates up to 1.54" (39mm) of precipitation. Throughout the year, in Norwalk, there are 159.8 rainfall days, and 21.93" (557mm) of precipitation is accumulated.

Daylight

In Norwalk, Florida, the average length of the day in May is 13h and 38min.
On the first day of the month, sunrise is at 6:44 am and sunset at 8:03 pm. On the last day of May, sunrise is at 6:27 am and sunset at 8:21 pm EDT.

Sunshine

In May, the average sunshine in Norwalk is 10.6h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily high UV index of 7 during May translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is May in Norwalk?

In Norwalk, in May, the average high-temperature is 86.5°F (30.3°C), and the average low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in May is calculated to be 98.6°F (37°C).

What is the average humidity in May in Norwalk?

In May, the average relative humidity in Norwalk, Florida, is 73%.

How many days does it rain in May in Norwalk?

In Norwalk, Florida, in May, it is raining for 13 days, with typically 1.54" (39mm) of accumulated precipitation.

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

In Norwalk, Florida, the average day length in May is 13h and 38min.

When is the sunrise / sunset in May in Norwalk?

In May, on the first day of the month, sunrise is at 6:44 am and sunset at 8:03 pm. On the last day of the month, in Norwalk, sunrise is at 6:27 am and sunset at 8:21 pm EDT.

How long on average sun shines in May in Norwalk?

In Norwalk, Florida, the average sunshine duration in May is 10.6h.

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

May through August, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in May in Norwalk?

The average daily maximum UV index in May in Norwalk is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Norwalk, FL

Average temperature in May - Norwalk, FL
  • Average high temperature in May: 86.5°F

The warmest month (with the highest average high temperature) is August (91.8°F).
The month with the lowest average high temperature is January (66.7°F).

  • Average low temperature in May: 67.3°F

The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (48.7°F).

Average pressure in May
Norwalk, FL

Average pressure in May - Norwalk, FL
  • Average pressure in May: 30.02"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

Average wind speed in May
Norwalk, FL

Average wind speed in May - Norwalk, FL
  • Average wind speed in May: 5.2mph

The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is July (4.1mph).

Average humidity in May
Norwalk, FL

Average humidity in May - Norwalk, FL
  • Average humidity in May: 73%

The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).

Average rainfall in May
Norwalk, FL

Average rainfall in May - Norwalk, FL
  • Average rainfall in May: 1.54"

The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is March (0.94").

Average rainfall days in May
Norwalk, FL

Average rainfall days in May - Norwalk, FL
  • Average rainfall days in May: 13 days

The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (8.4 days).

Average daylight in May /
Average sunshine in May
Norwalk, FL

Average daylight in May / Average sunshine in May - Norwalk, FL
  • Average daylight in May: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).

  • Average sunshine in May: 10h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in May
Norwalk, FL

Average sunshine days in May - Norwalk, FL
  • Average sunshine days in May: 16 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is August (7.9 days).

Average UV index in May
Norwalk, FL

Average UV index in May - Norwalk, FL
  • Average UV index in May: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

Average cloud cover in May
Norwalk, FL

Average cloud cover in May - Norwalk, FL
  • Average cloud cover in May: 30

The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is May (Cloud cover 30).

Average visibility in May
Norwalk, FL

Average visibility in May - Norwalk, FL
  • 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).

Norwalk, Florida, USA

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