May weather forecast
Middletown, IA

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Weather in May

The last month of the spring, May, is an agreeable month in Middletown, Iowa, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 71.1°F (21.7°C).

Temperature

As May begins, there is an increase in the average high-temperature, moving from a comfortable 60.8°F (16°C) in April to an agreeable 71.1°F (21.7°C). In the month of May, Middletown experiences an average low-temperature of 54.5°F (12.5°C).

Humidity

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

Rainfall

May is the month with the most rainfall in Middletown. Rain falls for 17.8 days and accumulates 3.94" (100mm) of precipitation.

Snowfall

In Middletown, snow does not fall in May through September.

Daylight

In May, the average length of the day in Middletown is 14h and 29min.
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, in Middletown, sunrise is at 5:35 am and sunset at 8:30 pm CDT.

Sunshine

In Middletown, the average sunshine in May is 8.9h.

UV index

In May, the average daily maximum UV index in Middletown, Iowa, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the maximum UV index of 5 suggests this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What is the usual temperature for Middletown in May?

An average high-temperature, in May, in Middletown, is 71.1°F (21.7°C) and the average low-temperature is 54.5°F (12.5°C).

What is the average humidity in May in Middletown?

In Middletown, Iowa, the average relative humidity in May is 79%.

What is the rainiest month in Middletown?

The month with the most rainfall is May, when the rain falls for 17.8 days and typically aggregates up to 3.94" (100mm) of precipitation.

How many days does it rain in May in Middletown?

In Middletown, Iowa, in May, during 17.8 rainfall days, 3.94" (100mm) of precipitation is typically accumulated.

When it does not snow in Middletown?

May through September are months without snowfall.

Does it snow in Middletown in May?

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

How many hours of daylight does Middletown have in May?

In May, the average day length in Middletown is 14h and 29min.

When is the sunrise / sunset in May in Middletown?

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 Middletown, Iowa, sunrise is at 5:35 am and sunset at 8:30 pm CDT.

How long on average sun shines in May in Middletown?

The average sunshine duration in May in Middletown is 8.9h.

How high is the UV index in May in Middletown?

In May, the average daily maximum UV index in Middletown is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Middletown, IA

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

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (30°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18°F).

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Average pressure in May
Middletown, IA

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in May
Middletown, IA

Average wind speed in May - Middletown, IA
  • Average wind speed in May: 8.8mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

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Average humidity in May
Middletown, IA

Average humidity in May - Middletown, IA
  • Average humidity in May: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Middletown, IA

Average rainfall in May - Middletown, IA
  • Average rainfall in May: 3.94"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is December (1.3").

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Average rainfall days in May
Middletown, IA

Average rainfall days in May - Middletown, IA
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5.2 days).

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Average snowfall in May
Middletown, IA

Average snowfall in May - Middletown, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Middletown, IA

Average snowfall days in May - Middletown, IA
  • 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).

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Average daylight in May /
Average sunshine in May
Middletown, IA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

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Average sunshine days in May
Middletown, IA

Average sunshine days in May - Middletown, IA
  • Average sunshine days in May: 11.2 days

The months with the most sunshine days are October and November (19.3 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in May
Middletown, IA

Average UV index in May - Middletown, IA
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

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Average cloud cover in May
Middletown, IA

Average cloud cover in May - Middletown, IA
  • Average cloud cover in May: 40

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 29).

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Average visibility in May
Middletown, IA

Average visibility in May - Middletown, 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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Middletown, Iowa, USA

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