May weather forecast
Washington Park, IL

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Weather in May

May, the last month of the spring in Washington Park, is a moderately hot month, with an average temperature fluctuating between 57.7°F (14.3°C) and 74.7°F (23.7°C).

Temperature

With the onset of May, Washington Park experiences a temperature shift, with the average high-temperature moving from a comfortable 65.1°F (18.4°C) in April to a warm 74.7°F (23.7°C). May brings an average low-temperature of 57.7°F (14.3°C) to Washington Park.

Humidity

The months with the highest humidity are May and July, with an average relative humidity of 78%.

Rainfall

May is the month with the most rainfall. Rain falls for 17.5 days and accumulates 4.25" (108mm) of precipitation.

Snowfall

In Washington Park, snow does not fall in April through October.

Daylight

In Washington Park, the average length of the day in May is 14h and 17min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:18 pm CDT.

Sunshine

The average sunshine in May is 9.5h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In May, the average maximum UV index of 6 translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in May?

An average high-temperature, in May, in Washington Park, is 74.7°F (23.7°C) and the average low-temperature is 57.7°F (14.3°C).

What are the most humid months?

May and July, with an average relative humidity of 78%, are most humid months.

What is the average humidity in May?

In Washington Park, the average relative humidity in May is 78%.

What is the wettest month?

The month with the most rainfall is May, when the rain falls for 17.5 days and typically aggregates up to 4.25" (108mm) of precipitation.

How many days does it rain in May in Washington Park?

In Washington Park, in May, during 17.5 rainfall days, 4.25" (108mm) of precipitation is typically accumulated.

When it does not snow?

April through October are months without snowfall.

What is the average length of the day in May?

In Washington Park, the average day length in May is 14h and 17min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:18 pm CDT.

How long on average sun shines in May in Washington Park?

The average sunshine duration in May in Washington Park is 9.5h.

When is the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in May?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high 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
Washington Park, IL

Average temperature in May - Washington Park, IL
  • Average high temperature in May: 74.7°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in May: 57.7°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).

Average pressure in May
Washington Park, IL

Average pressure in May - Washington Park, IL
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Washington Park, IL

Average wind speed in May - Washington Park, IL
  • Average wind speed in May: 7.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).

Average humidity in May
Washington Park, IL

Average humidity in May - Washington Park, IL
  • Average humidity in May: 78%

The months with the highest relative humidity are May and July (78%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Washington Park, IL

Average rainfall in May - Washington Park, IL
  • Average rainfall in May: 4.25"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is February (1.89").

Average rainfall days in May
Washington Park, IL

Average rainfall days in May - Washington Park, IL
  • Average rainfall days in May: 17.5 days

The months with the highest number of rainy days are May and July (17.5 days).
The month with the least rainy days is January (8 days).

Average snowfall in May
Washington Park, IL

Average snowfall in May - Washington Park, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Washington Park, IL

Average snowfall days in May - Washington Park, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (7.3 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
Washington Park, IL

Average daylight in May / Average sunshine in May - Washington Park, IL
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 3min

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

Average sunshine days in May
Washington Park, IL

Average sunshine days in May - Washington Park, IL
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is December (18.8 days).
The month with the least sunshine days is May (11.2 days).

Average UV index in May
Washington Park, IL

Average UV index in May - Washington Park, IL
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in May
Washington Park, IL

Average cloud cover in May - Washington Park, IL
  • Average cloud cover in May: 37

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in May
Washington Park, IL

Average visibility in May - Washington Park, IL
  • 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).

Washington Park, Illinois, USA

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