May weather forecast
Farley, IA

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Weather in May

May, the last month of the spring in Farley, is a refreshing month, with an average temperature varying between 50.5°F (10.3°C) and 66.7°F (19.3°C).

Temperature

The shift into May is marked by a rise in the average high-temperature, moving from April's mild 55.9°F (13.3°C) to a comfortable 66.7°F (19.3°C). Farley records an average temperature drop to a cool 50.5°F (10.3°C) in May.

Humidity

In Farley, the average relative humidity in May is 81%.

Rainfall

May is the month with the most rainfall in Farley. Rain falls for 19.9 days and accumulates 4.72" (120mm) of precipitation.

Snowfall

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

Daylight

In Farley, the average length of the day in May is 14h and 37min.
On the first day of the month, sunrise is at 5:57 am and sunset at 8:04 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:34 pm CDT.

Sunshine

The average sunshine in May is 8.1h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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 Farley in May?

In Farley, 66.7°F (19.3°C) is the average high-temperature and 50.5°F (10.3°C) is the average low-temperature during May.

What is the average humidity in May in Farley?

In Farley, Iowa, the average relative humidity in May is 81%.

What is the wettest month in Farley?

The month with the most rainfall in Farley is May, when the rain falls for 19.9 days and typically aggregates up to 4.72" (120mm) of precipitation.

How many days does it rain in May in Farley?

In May, in Farley, the rain falls for 19.9 days. Throughout May, 4.72" (120mm) of precipitation is accumulated.

When it does not snow in Farley?

May through September are months without snowfall in Farley, Iowa.

Does it snow in Farley in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Farley have in May?

In May, the average day length in Farley is 14h and 37min.

When are sunrise and sunset in May in Farley?

On the first day of May in Farley, sunrise is at 5:57 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:34 pm CDT.

How long on average sun shines in May in Farley?

In May, the average sunshine duration in Farley is 8.1h.

What are the months with the highest UV index in Farley?

The months with the highest UV index in Farley are May through August, with an average maximum UV index of 5.

What is the UV index reading in May in Farley?

In May, the average daily maximum UV index in Farley, Iowa, is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Farley, IA

Average temperature in May - Farley, IA
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in May: 50.5°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

Average pressure in May
Farley, IA

Average pressure in May - Farley, IA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in May
Farley, IA

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

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

Average humidity in May
Farley, IA

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

The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are April and October (76%).

Average rainfall in May
Farley, IA

Average rainfall in May - Farley, IA
  • Average rainfall in May: 4.72"

The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is January (1.34").

Average rainfall days in May
Farley, IA

Average rainfall days in May - Farley, IA
  • Average rainfall days in May: 19.9 days

The months with the highest number of rainy days are May and June (19.9 days).
The month with the least rainy days is February (4.3 days).

Average snowfall in May
Farley, IA

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

The month with the highest snowfall is January (6.22").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Farley, IA

Average snowfall days in May - Farley, IA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Farley, 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 6min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in May
Farley, IA

Average sunshine days in May - Farley, IA
  • Average sunshine days in May: 9 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (7.8 days).

Average UV index in May
Farley, IA

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in May
Farley, IA

Average cloud cover in May - Farley, IA
  • Average cloud cover in May: 46

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in May
Farley, IA

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

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

Farley, Iowa, USA

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