May weather forecast
Yorktown, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Yorktown, Iowa, with an average temperature fluctuating between 54.1°F (12.3°C) and 70.9°F (21.6°C).

Temperature

May brings a rise in Yorktown's average high-temperature, moving from a refreshing 61.5°F (16.4°C) in April to a pleasant 70.9°F (21.6°C). The nighttime temperature dips to a fresh 54.1°F (12.3°C) on average during May.

Humidity

In Yorktown, Iowa, the average relative humidity in May is 76%.

Rainfall

In May, in Yorktown, the rain falls for 16.7 days. Throughout May, 3.15" (80mm) of precipitation is accumulated. In Yorktown, during the entire year, the rain falls for 114.9 days and collects up to 18.39" (467mm) of precipitation.

Snowfall

May through September are months without snowfall in Yorktown.

Daylight

In Yorktown, Iowa, the average length of the day in May is 14h and 28min.
On the first day of the month, sunrise is at 6:17 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:51 am and sunset at 8:45 pm CDT.

Sunshine

In May, the average sunshine in Yorktown is 8.7h.

UV index

In Yorktown, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 5 in May suggests the following recommendations:
Undertake protective steps - Preventing sun damage is advised. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Yorktown?

In May, in Yorktown, the average high-temperature is 70.9°F (21.6°C), and the average low-temperature is 54.1°F (12.3°C).

What is the average humidity in May in Yorktown?

In May, the average relative humidity is 76%.

How many days does it rain in May in Yorktown?

In Yorktown, in May, it is raining for 16.7 days, with typically 3.15" (80mm) of accumulated precipitation.

When it does not snow in Yorktown?

In Yorktown, Iowa, snow does not fall in May through September.

Does it snow in Yorktown 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 Yorktown?

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

What time are sunrise and sunset in May in Yorktown?

On the first day of May, sunrise is at 6:17 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:45 pm CDT.

How long on average sun shines in May in Yorktown?

In Yorktown, the average sunshine duration in May is 8.7h.

What is the UV index reading in May in Yorktown?

The average daily maximum UV index in May in Yorktown, Iowa, 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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Yorktown, IA

Average temperature in May - Yorktown, IA
  • Average high temperature in May: 70.9°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in May: 54.1°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

Average pressure in May
Yorktown, IA

Average pressure in May - Yorktown, IA
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in May
Yorktown, IA

Average wind speed in May - Yorktown, IA
  • Average wind speed in May: 8.6mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

Average humidity in May
Yorktown, IA

Average humidity in May - Yorktown, IA
  • Average humidity in May: 76%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in May
Yorktown, IA

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

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is February (0.43").

Average rainfall days in May
Yorktown, IA

Average rainfall days in May - Yorktown, IA
  • Average rainfall days in May: 16.7 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (3.4 days).

Average snowfall in May
Yorktown, IA

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

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Yorktown, IA

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

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Yorktown, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in May
Yorktown, IA

Average sunshine days in May - Yorktown, IA
  • Average sunshine days in May: 12.7 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in May
Yorktown, IA

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

Average cloud cover in May
Yorktown, IA

Average cloud cover in May - Yorktown, IA
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in May
Yorktown, IA

Average visibility in May - Yorktown, 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).

Yorktown, Iowa, USA

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