May weather forecast
Martensdale, IA

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Weather in May

May, the last month of the spring in Martensdale, is a pleasant month, with an average temperature varying between 69.6°F (20.9°C) and 52.9°F (11.6°C).

Temperature

May's onset is marked by a temperature increase, moving from a refreshing 59.9°F (15.5°C) in April to an agreeable 69.6°F (20.9°C). During the month of May, Martensdale's nighttime temperature lowers to an average of 52.9°F (11.6°C).

Humidity

In May, the average relative humidity is 79%.

Rainfall

The month with the most rainfall is May, when the rain falls for 15.9 days and typically aggregates up to 3.07" (78mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Martensdale. During 0.1 snowfall days, in May, Martensdale aggregates 0.04" (1mm) of snow. In Martensdale, during the entire year, snow falls for 31.9 days and aggregates up to 10.12" (257mm) of snow.

Daylight

In Martensdale, the average length of the day in May is 14h and 32min.
On the first day of the month, sunrise is at 6:10 am and sunset at 8:12 pm. On the last day of May, sunrise is at 5:43 am and sunset at 8:41 pm CDT.

Sunshine

The average sunshine in May is 8.7h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, an average UV index of 5 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

An average high-temperature, in May, in Martensdale, is 69.6°F (20.9°C) and the average low-temperature is 52.9°F (11.6°C).

What is the average humidity in May?

The average relative humidity in May is 79%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 15.9 days and typically aggregates up to 3.07" (78mm) of precipitation.

How much does it rain in May?

In Martensdale, during May, the rain falls for 15.9 days and regularly aggregates up to 3.07" (78mm) of precipitation.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Martensdale aggregates 0.04" (1mm) of snow.

What is the average length of the day in May?

The average day length in May is 14h and 32min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:10 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 8:41 pm CDT.

How long on average sun shines in May?

In May, the average sunshine duration is 8.7h.

How high is the UV index in May?

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Martensdale, IA

Average temperature in May - Martensdale, IA
  • Average high temperature in May: 69.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in May: 52.9°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 (15.3°F).

Average pressure in May
Martensdale, IA

Average pressure in May - Martensdale, IA
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in May
Martensdale, IA

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

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in May
Martensdale, IA

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

The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Martensdale, IA

Average rainfall in May - Martensdale, IA
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (0.55").

Average rainfall days in May
Martensdale, IA

Average rainfall days in May - Martensdale, IA
  • Average rainfall days in May: 15.9 days

The months with the highest number of rainy days are May and June (15.9 days).
The month with the least rainy days is January (3.4 days).

Average snowfall in May
Martensdale, IA

Average snowfall in May - Martensdale, IA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (3.03").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Martensdale, IA

Average snowfall days in May - Martensdale, IA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Martensdale, 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 12min).

  • Average sunshine in May: 8h and 4min

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).

Average sunshine days in May
Martensdale, IA

Average sunshine days in May - Martensdale, IA
  • Average sunshine days in May: 12.1 days

The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (11 days).

Average UV index in May
Martensdale, IA

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

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

Average cloud cover in May
Martensdale, IA

Average cloud cover in May - Martensdale, IA
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in May
Martensdale, IA

Average visibility in May - Martensdale, 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).

Martensdale, Iowa, USA

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