May weather forecast
Garner, IA

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Weather in May

May, the last month of the spring in Garner, is an enjoyable month, with an average temperature fluctuating between 51.4°F (10.8°C) and 67.8°F (19.9°C).

Temperature

The shift into May is characterized by a rise in the average high-temperature, transitioning from April's mild 55.6°F (13.1°C) to a comfortable 67.8°F (19.9°C). Garner experiences an average temperature drop to a cool 51.4°F (10.8°C) during May nights.

Humidity

The average relative humidity in May is 73%.

Rainfall

In Garner, in May, it is raining for 11.3 days, with typically 0.83" (21mm) of accumulated precipitation. In Garner, during the entire year, the rain falls for 80.2 days and collects up to 6.14" (156mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Garner. May is the last month it regularly snows in Garner. During 0.3 snowfall days, in May, Garner aggregates 0.12" (3mm) of snow. Throughout the year, there are 36.9 snowfall days, and 3.31" (84mm) of snow is accumulated.

Daylight

In May, the average length of the day in Garner, Iowa, is 14h and 41min.
On the first day of May, sunrise is at 6:06 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:46 pm CDT.

Sunshine

The average sunshine in May is 8.4h.

UV index

In May, the average daily maximum UV index 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: The maximum UV index of 5 during May translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. To protect against the Sun's most potent rays, avoid direct exposure around midday. 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. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Garner in May?

In May, in Garner, the average high-temperature is 67.8°F (19.9°C), and the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in May in Garner?

In May, the average relative humidity in Garner is 73%.

How much does it rain in Garner in May?

In Garner, Iowa, in May, during 11.3 rainfall days, 0.83" (21mm) of precipitation is typically accumulated.

What is the last month it snows in Garner?

May is the last month it regularly snows in Garner, Iowa. During 0.3 snowfall days, in May, Garner aggregates 0.12" (3mm) of snow.

What is the average length of the day in May in Garner?

The average day length in May in Garner is 14h and 41min.

What time are sunrise and sunset in May in Garner?

On the first day of May in Garner, Iowa, sunrise is at 6:06 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:46 pm CDT.

How many hours of sunshine does Garner have in May?

In May, the average sunshine duration is 8.4h.

What is the UV index reading in May in Garner?

In Garner, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Garner, IA

Average temperature in May - Garner, IA
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).

Average pressure in May
Garner, IA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in May
Garner, IA

Average wind speed in May - Garner, IA
  • Average wind speed in May: 9.6mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in May
Garner, IA

Average humidity in May - Garner, IA
  • Average humidity in May: 73%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (70%).

Average rainfall in May
Garner, IA

Average rainfall in May - Garner, IA
  • Average rainfall in May: 0.83"

The wettest month (with the highest rainfall) is June (0.87").
The driest month (with the least rainfall) is January (0.2").

Average rainfall days in May
Garner, IA

Average rainfall days in May - Garner, IA
  • Average rainfall days in May: 11.3 days

The month with the highest number of rainy days is June (12 days).
The months with the least rainy days are January and February (1.7 days).

Average snowfall in May
Garner, IA

Average snowfall in May - Garner, IA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is February (1.14").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Garner, IA

Average snowfall days in May - Garner, IA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

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

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in May
Garner, IA

Average sunshine days in May - Garner, IA
  • Average sunshine days in May: 16.6 days

The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is June (14.8 days).

Average UV index in May
Garner, IA

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

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

Average cloud cover in May
Garner, IA

Average cloud cover in May - Garner, IA
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in May
Garner, IA

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

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

Garner, Iowa, USA

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