May weather forecast
Crest Hill, IL

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Weather in May

The last month of the spring, May, is a pleasant month in Crest Hill, Illinois, with an average temperature varying between 70.3°F (21.3°C) and 52.3°F (11.3°C).

Temperature

The shift into May is marked by a rise in the average high-temperature, moving from April's refreshing 58.1°F (14.5°C) to an agreeable 70.3°F (21.3°C). During the month of May, the temperature falls to an average of 52.3°F (11.3°C).

Humidity

In Crest Hill, the average relative humidity in May is 77%.

Rainfall

May is the month with the most rainfall in Crest Hill. Rain falls for 17.8 days and accumulates 4.41" (112mm) of precipitation.

Snowfall

In Crest Hill, snow does not fall in May through October.

Daylight

In Crest Hill, the average length of the day in May is 14h and 32min.
On the first day of May, sunrise is at 5:48 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:19 pm CDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 5 during May translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
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Frequently asked questions

What are the temperatures in Crest Hill in May?

In Crest Hill, 70.3°F (21.3°C) is the average high-temperature and 52.3°F (11.3°C) is the average low-temperature during May.

What is the average humidity in May in Crest Hill?

In May, the average relative humidity in Crest Hill is 77%.

What is the wettest month in Crest Hill?

The month with the most rainfall in Crest Hill is May, when the rain falls for 17.8 days and typically aggregates up to 4.41" (112mm) of precipitation.

How much does it rain in Crest Hill in May?

In Crest Hill, Illinois, in May, it is raining for 17.8 days, with typically 4.41" (112mm) of accumulated precipitation.

When it does not snow in Crest Hill?

May through October are months without snowfall in Crest Hill, Illinois.

Does it snow in Crest Hill in May?

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

How many hours of daylight does Crest Hill have in May?

The average day length in May is 14h and 32min.

When are sunrise and sunset in May in Crest Hill?

On the first day of May in Crest Hill, sunrise is at 5:48 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:19 pm CDT.

How long on average sun shines in May in Crest Hill?

In Crest Hill, the average sunshine duration in May is 8.5h.

How high is the UV index in May in Crest Hill?

The average daily maximum UV index in May in Crest Hill is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from 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
Crest Hill, IL

Average temperature in May - Crest Hill, IL
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.3°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 (17.4°F).

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Average pressure in May
Crest Hill, IL

Average pressure in May - Crest Hill, IL
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Crest Hill, IL

Average wind speed in May - Crest Hill, IL
  • Average wind speed in May: 8.3mph

The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).

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Average humidity in May
Crest Hill, IL

Average humidity in May - Crest Hill, IL
  • Average humidity in May: 77%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in May
Crest Hill, IL

Average rainfall in May - Crest Hill, IL
  • Average rainfall in May: 4.41"

The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.61").

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Average rainfall days in May
Crest Hill, IL

Average rainfall days in May - Crest Hill, IL
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in May
Crest Hill, IL

Average snowfall in May - Crest Hill, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Crest Hill, IL

Average snowfall days in May - Crest Hill, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Crest Hill, IL

Average daylight in May / Average sunshine in May - Crest Hill, IL
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in May
Crest Hill, IL

Average sunshine days in May - Crest Hill, IL
  • Average sunshine days in May: 11.6 days

The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).

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Average UV index in May
Crest Hill, IL

Average UV index in May - Crest Hill, IL
  • 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).

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Average cloud cover in May
Crest Hill, IL

Average cloud cover in May - Crest Hill, IL
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).

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Average visibility in May
Crest Hill, IL

Average visibility in May - Crest Hill, IL
  • Average visibility in May: 6mi

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

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Crest Hill, Illinois, USA

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