May weather forecast
West Amana, IA

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Weather in May

The last month of the spring, May, is an agreeable month in West Amana, Iowa, with an average temperature varying between 52.3°F (11.3°C) and 69.1°F (20.6°C).

Temperature

In West Amana, the onset of May comes with an increased average high-temperature, moving from April's moderate 58.1°F (14.5°C) to an agreeable 69.1°F (20.6°C). West Amana anticipates an average minimum temperature of 52.3°F (11.3°C) in the month of May.

Humidity

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

Rainfall

The month with the most rainfall is May, when the rain falls for 18.6 days and typically aggregates up to 4.33" (110mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, West Amana aggregates 0.04" (1mm) of snow. Throughout the year, there are 36.9 snowfall days, and 15.91" (404mm) of snow is accumulated.

Daylight

In West Amana, the average length of the day in May is 14h and 34min.
On the first day of May, sunrise is at 6:02 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:35 pm CDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

In West Amana, in May, the average high-temperature is 69.1°F (20.6°C), and the average low-temperature is 52.3°F (11.3°C).

What is the average humidity in May?

In May, the average relative humidity is 79%.

What is the wettest month?

The month with the most rainfall in West Amana, Iowa, is May, when the rain falls for 18.6 days and typically aggregates up to 4.33" (110mm) of precipitation.

How many days does it rain in May?

In West Amana, Iowa, in May, during 18.6 rainfall days, 4.33" (110mm) of precipitation is typically accumulated.

What is the last month it snows?

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

How many hours of daylight does West Amana have in May?

In West Amana, the average day length in May is 14h and 34min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:35 pm CDT.

How many hours of sunshine does West Amana have in May?

In May, the average sunshine duration in West Amana is 8.6h.

What is the UV index intensity in May?

In West Amana, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unsafe 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
West Amana, IA

Average temperature in May - West Amana, IA
  • Average high temperature in May: 69.1°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

Average pressure in May
West Amana, IA

Average pressure in May - West Amana, 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 (29.89"Hg).

Average wind speed in May
West Amana, IA

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

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

Average humidity in May
West Amana, IA

Average humidity in May - West Amana, IA
  • Average humidity in May: 79%

The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
West Amana, IA

Average rainfall in May - West Amana, IA
  • Average rainfall in May: 4.33"

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is January (1.14").

Average rainfall days in May
West Amana, IA

Average rainfall days in May - West Amana, IA
  • Average rainfall days in May: 18.6 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in May
West Amana, IA

Average snowfall in May - West Amana, IA
  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
West Amana, IA

Average snowfall days in May - West Amana, IA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is February (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
West Amana, IA

Average daylight in May / Average sunshine in May - West Amana, 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 4min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in May
West Amana, IA

Average sunshine days in May - West Amana, IA
  • Average sunshine days in May: 9.9 days

The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is June (9.6 days).

Average UV index in May
West Amana, IA

Average UV index in May - West Amana, 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).

Average cloud cover in May
West Amana, IA

Average cloud cover in May - West Amana, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in May
West Amana, IA

Average visibility in May - West Amana, 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).

West Amana, Iowa, USA

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