May weather forecast
Fort Madison, IA

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Weather in May

In May, Fort Madison enjoys a refreshing spring climate before the onset of summer. The rise in temperature is complemented by increased sunshine hours. As nature fully embraces spring, the rainfall becomes more frequent, contributing to the city's lush landscapes. The city witnesses a decline in wind speed, and the outdoor conditions turn more amiable. The temperatures during this month range from 54.3°F (12.4°C) to 71.1°F (21.7°C), marking a transition towards the summer season.

Temperature

With the onset of May, Fort Madison sees a temperature rise, with the average high-temperature moving from April's enjoyable 61.2°F (16.2°C) to an agreeable 71.1°F (21.7°C). During May nights, Fort Madison witnesses a consistent average temperature of 54.3°F (12.4°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 14.4 days and accumulates 1.46" (37mm) of precipitation.

Snowfall

May through September are months without snowfall in Fort Madison.

Daylight

In Fort Madison, Iowa, the average length of the day in May is 14h and 28min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:01 pm. On the last day of May, sunrise is at 5:36 am and sunset at 8:29 pm CDT.

Sunshine

In May, the average sunshine is 9h.

UV index

The average daily maximum UV index in May in Fort Madison is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily high UV index of 5 in May leads to these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the average May temperature in Fort Madison?

May temperatures in Fort Madison vary between a high-temperature of 71.1°F (21.7°C) and a low-temperature of 54.3°F (12.4°C).

What is the average humidity in May in Fort Madison?

In Fort Madison, the average relative humidity in May is 79%.

What is the wettest month in Fort Madison?

The month with the most rainfall is May, when the rain falls for 14.4 days and typically aggregates up to 1.46" (37mm) of precipitation.

How much does it rain in Fort Madison in May?

In Fort Madison, during May, the rain falls for 14.4 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow in Fort Madison?

In Fort Madison, Iowa, snow does not fall in May through September.

Does it snow in Fort Madison 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 in Fort Madison?

In Fort Madison, the average day length in May is 14h and 28min.

When is the sunrise / sunset in May in Fort Madison?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 8:01 pm. On the last day of the month, in Fort Madison, sunrise is at 5:36 am and sunset at 8:29 pm CDT.

How many hours of sunshine does Fort Madison have in May?

The average sunshine duration in May in Fort Madison, Iowa, is 9h.

How high is the UV index in May in Fort Madison?

In Fort Madison, Iowa, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability 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
Fort Madison, IA

Average temperature in May - Fort Madison, IA
  • Average high temperature in May: 71.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in May: 54.3°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure in May
Fort Madison, IA

Average pressure in May - Fort Madison, IA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in May
Fort Madison, IA

Average wind speed in May - Fort Madison, IA
  • Average wind speed in May: 8.7mph

The windiest months (with the highest average wind speed) are January, February, March and April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average humidity in May
Fort Madison, IA

Average humidity in May - Fort Madison, IA
  • Average humidity in May: 79%

The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Fort Madison, IA

Average rainfall in May - Fort Madison, IA
  • Average rainfall in May: 1.46"

The wettest month (with the highest rainfall) is May (1.46").
The driest months (with the least rainfall) are January and December (0.47").

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Average rainfall days in May
Fort Madison, IA

Average rainfall days in May - Fort Madison, IA
  • Average rainfall days in May: 14.4 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3.5 days).

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Average snowfall in May
Fort Madison, IA

Average snowfall in May - Fort Madison, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Fort Madison, IA

Average snowfall days in May - Fort Madison, IA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Fort Madison, IA

Average daylight in May / Average sunshine in May - Fort Madison, IA
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in May
Fort Madison, IA

Average sunshine days in May - Fort Madison, IA
  • Average sunshine days in May: 14 days

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is May (14 days).

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Average UV index in May
Fort Madison, IA

Average UV index in May - Fort Madison, IA
  • 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).

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Average cloud cover in May
Fort Madison, IA

Average cloud cover in May - Fort Madison, IA
  • Average cloud cover in May: 39

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 28).

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Average visibility in May
Fort Madison, IA

Average visibility in May - Fort Madison, IA
  • 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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Fort Madison, Iowa, USA

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