May weather forecast
Lamoni, IA

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Weather in May

May is a month where the weather truly begins to warm up in Lamoni, Iowa. This month witnesses an average high temperature of 69.8°F (21°C) and an average low of 53.2°F (11.8°C). There is a notable increase in the amount of daylight, with an average of 14.5 hours per day. With the hottest months of the year approaching, May serves as a threshold before the summer heat truly kicks in. It is essential to note that as the weather transitions from May to June, warmer and longer days are on the horizon.

Temperature

Lamoni's transition into May sees a rise in the average high-temperature, advancing from a comfortable 60.8°F (16°C) in April to a pleasant 69.8°F (21°C). The average low-temperature of 53.2°F (11.8°C) is witnessed in Lamoni during May.

Humidity

The average relative humidity in May in Lamoni is 81%.

Rainfall

In Lamoni, during May, the rain falls for 17.3 days and regularly aggregates up to 3.15" (80mm) of precipitation. Throughout the year, there are 124.4 rainfall days, and 21.42" (544mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Lamoni. During 0.2 snowfall days, in May, Lamoni aggregates 0.16" (4mm) of snow. Throughout the year, in Lamoni, there are 27.9 snowfall days, and 10.83" (275mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 28min.
On the first day of May, sunrise is at 6:13 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:40 pm CDT.

Sunshine

In Lamoni, the average sunshine in May is 8.5h.

UV index

The average daily maximum UV index in May in Lamoni is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 5 in May transforms into this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What are May temperatures in Lamoni?

In May, in Lamoni, the average high-temperature is 69.8°F (21°C), and the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in May in Lamoni?

The average relative humidity in May is 81%.

How many days does it rain in May in Lamoni?

In Lamoni, during May, the rain falls for 17.3 days and regularly aggregates up to 3.15" (80mm) of precipitation.

What is the last month it snows in Lamoni?

May is the last month it regularly snows. During 0.2 snowfall days, in May, Lamoni aggregates 0.16" (4mm) of snow.

How many hours of daylight does Lamoni have in May?

In May, the average day length in Lamoni, Iowa, is 14h and 28min.

When is the sunrise / sunset in May in Lamoni?

In May, on the first day of the month, sunrise is at 6:13 am and sunset at 8:12 pm. On the last day of the month, in Lamoni, sunrise is at 5:47 am and sunset at 8:40 pm CDT.

How many hours of sunshine does Lamoni have in May?

In May, the average sunshine duration in Lamoni, Iowa, is 8.5h.

What is the UV index reading in May in Lamoni?

The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Lamoni, IA

Average temperature in May - Lamoni, IA
  • Average high temperature in May: 69.8°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in May: 53.2°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 (16.9°F).

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Average pressure in May
Lamoni, IA

Average pressure in May - Lamoni, 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).

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Average wind speed in May
Lamoni, IA

Average wind speed in May - Lamoni, IA
  • Average wind speed in May: 8.5mph

The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in May
Lamoni, IA

Average humidity in May - Lamoni, IA
  • Average humidity in May: 81%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Lamoni, IA

Average rainfall in May - Lamoni, IA
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January, February and December (0.71").

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Average rainfall days in May
Lamoni, IA

Average rainfall days in May - Lamoni, IA
  • Average rainfall days in May: 17.3 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (3.8 days).

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Average snowfall in May
Lamoni, IA

Average snowfall in May - Lamoni, IA
  • Average snowfall in May: 0.16"

The month with the highest snowfall is January (2.95").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Lamoni, IA

Average snowfall days in May - Lamoni, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Lamoni, 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: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in May
Lamoni, IA

Average sunshine days in May - Lamoni, IA
  • Average sunshine days in May: 11.4 days

The month with the most sunshine days is December (21.5 days).
The month with the least sunshine days is May (11.4 days).

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Average UV index in May
Lamoni, IA

Average UV index in May - Lamoni, 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, October, November and December (UV index 2).

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Average cloud cover in May
Lamoni, IA

Average cloud cover in May - Lamoni, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July, August and September (Cloud cover 29).

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Average visibility in May
Lamoni, IA

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

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