May weather forecast
Lisbon, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Lisbon, Iowa, with temperature in the range of an average low of 52.2°F (11.2°C) and an average high of 68.9°F (20.5°C).

Temperature

As May arrives, Lisbon's weather shows an increase in high-temperatures, moving from April's moderate 57.9°F (14.4°C) to a pleasant 68.9°F (20.5°C). During May, an average low-temperature of 52.2°F (11.2°C) is observed.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 19 days and typically aggregates up to 5" (127mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in May is 14h and 35min.
On the first day of May, sunrise is at 6:00 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:34 pm CDT.

Sunshine

In Lisbon, the average sunshine in May is 8.4h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 5 suggests these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take note! UV radiation from the Sun can double in intensity due to snow reflection.

Frequently asked questions

What is the average May temperature?

In May, the average high-temperature and low-temperature are 68.9°F (20.5°C) and 52.2°F (11.2°C) respectively.

What is the average humidity in May?

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

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 19 days and accumulates 5" (127mm) of precipitation.

How many days does it rain in May?

In May, the rain falls for 19 days. Throughout May, 5" (127mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow 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 Lisbon?

The average day length in May is 14h and 35min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:00 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:34 pm CDT.

How many hours of sunshine does Lisbon have in May?

In May, the average sunshine duration is 8.4h.

What is the UV index intensity in May?

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

Average temperature in May - Lisbon, IA
  • Average high temperature in May: 68.9°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in May: 52.2°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

Average pressure in May
Lisbon, IA

Average pressure in May - Lisbon, 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).

Average wind speed in May
Lisbon, IA

Average wind speed in May - Lisbon, IA
  • Average wind speed in May: 9.1mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in May
Lisbon, IA

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

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).

Average rainfall in May
Lisbon, IA

Average rainfall in May - Lisbon, IA
  • Average rainfall in May: 5"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is January (1.34").

Average rainfall days in May
Lisbon, IA

Average rainfall days in May - Lisbon, IA
  • Average rainfall days in May: 19 days

The month with the highest number of rainy days is May (19 days).
The months with the least rainy days are January and February (5.2 days).

Average snowfall in May
Lisbon, IA

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

The month with the highest snowfall is January (5.79").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Lisbon, IA

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

The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Lisbon, IA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in May
Lisbon, IA

Average sunshine days in May - Lisbon, IA
  • Average sunshine days in May: 9.2 days

The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (8.1 days).

Average UV index in May
Lisbon, IA

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Lisbon, IA

Average cloud cover in May - Lisbon, IA
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).

Average visibility in May
Lisbon, IA

Average visibility in May - Lisbon, IA
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Lisbon, Iowa, USA

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