May weather forecast
Grape Creek, IL

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Weather in May

May, the last month of the spring in Grape Creek, is an agreeable month, with an average temperature fluctuating between 55°F (12.8°C) and 71.8°F (22.1°C).

Temperature

As April transitions into May, Grape Creek sees a rise in the average high-temperature, moving from an enjoyable 61.2°F (16.2°C) to an agreeable 71.8°F (22.1°C). Grape Creek experiences an average low-temperature of 55°F (12.8°C) in month of May.

Humidity

In Grape Creek, the average relative humidity in May is 78%.

Rainfall

In Grape Creek, in May, it is raining for 18 days, with typically 3.15" (80mm) of accumulated precipitation. Throughout the year, in Grape Creek, there are 151.8 rainfall days, and 25.63" (651mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Grape Creek.

Daylight

The average length of the day in May is 14h and 25min.
On the first day of the month, sunrise is at 5:49 am and sunset at 7:45 pm. On the last day of May, in Grape Creek, sunrise is at 5:23 am and sunset at 8:13 pm CDT.

Sunshine

In Grape Creek, the average sunshine in May is 8.8h.

UV index

In Grape Creek, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What are the temperatures in Grape Creek in May?

In Grape Creek, 71.8°F (22.1°C) is the average high-temperature and 55°F (12.8°C) is the average low-temperature during May.

What is the average humidity in May in Grape Creek?

The average relative humidity in May in Grape Creek is 78%.

How much does it rain in Grape Creek in May?

In Grape Creek, Illinois, in May, it is raining for 18 days, with typically 3.15" (80mm) of accumulated precipitation.

When it does not snow in Grape Creek?

May through October are months without snowfall in Grape Creek.

Does it snow in Grape Creek in May?

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

How many hours of daylight does Grape Creek have in May?

In Grape Creek, the average day length in May is 14h and 25min.

When is the sunrise / sunset in May in Grape Creek?

In May, on the first day of the month, sunrise is at 5:49 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:13 pm CDT.

How long on average sun shines in May in Grape Creek?

The average sunshine duration in May in Grape Creek, Illinois, is 8.8h.

What is the UV index intensity in May in Grape Creek?

In Grape Creek, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Grape Creek, IL

Average temperature in May - Grape Creek, IL
  • Average high temperature in May: 71.8°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 (31.6°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

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Average pressure in May
Grape Creek, IL

Average pressure in May - Grape Creek, IL
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Grape Creek, IL

Average wind speed in May - Grape Creek, IL
  • Average wind speed in May: 8.6mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

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Average humidity in May
Grape Creek, IL

Average humidity in May - Grape Creek, IL
  • Average humidity in May: 78%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in May
Grape Creek, IL

Average rainfall in May - Grape Creek, IL
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").

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Average rainfall days in May
Grape Creek, IL

Average rainfall days in May - Grape Creek, IL
  • Average rainfall days in May: 18 days

The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).

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Average snowfall in May
Grape Creek, IL

Average snowfall in May - Grape Creek, IL
  • Average snowfall in May: 0"

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

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Average snowfall days in May
Grape Creek, IL

Average snowfall days in May - Grape Creek, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (10.6 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
Grape Creek, IL

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

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 24min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in May
Grape Creek, IL

Average sunshine days in May - Grape Creek, IL
  • Average sunshine days in May: 10 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).

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Average UV index in May
Grape Creek, IL

Average UV index in May - Grape Creek, IL
  • 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).

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Average cloud cover in May
Grape Creek, IL

Average cloud cover in May - Grape Creek, IL
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).

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Average visibility in May
Grape Creek, IL

Average visibility in May - Grape Creek, IL
  • Average visibility in May: 6mi

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

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Grape Creek, Illinois, USA

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