May weather forecast
San Jose, IL

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Weather in May

May, the last month of the spring in San Jose, is a pleasant month, with an average temperature fluctuating between 72.1°F (22.3°C) and 55.8°F (13.2°C).

Temperature

May indicates a change in the average high-temperature, moving up from a refreshing 61.5°F (16.4°C) in April to a pleasant 72.1°F (22.3°C). In the month of May, San Jose experiences an average low-temperature of 55.8°F (13.2°C).

Humidity

In May, the average relative humidity is 77%.

Rainfall

The month with the most rainfall is May, when the rain falls for 17.7 days and typically aggregates up to 2.83" (72mm) of precipitation.

Snowfall

In San Jose, snow does not fall in May through October.

Daylight

The average length of the day in May in San Jose is 14h and 26min.
On the first day of May, sunrise is at 5:56 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:21 pm CDT.

Sunshine

In San Jose, the average sunshine in May is 9.1h.

UV index

In San Jose, Illinois, 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: In May, the maximum UV index of 5 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What are the temperatures in San Jose in May?

The high-temperature in San Jose, Illinois, during May is 72.1°F (22.3°C) and the low-temperature is 55.8°F (13.2°C).

What is the average humidity in May in San Jose?

The average relative humidity in May in San Jose, Illinois, is 77%.

What is the wettest month in San Jose?

May is the month with the most rainfall. Rain falls for 17.7 days and accumulates 2.83" (72mm) of precipitation.

How much does it rain in San Jose in May?

In San Jose, in May, during 17.7 rainfall days, 2.83" (72mm) of precipitation is typically accumulated.

When it does not snow in San Jose?

In San Jose, Illinois, snow does not fall in May through October.

Does it snow in San Jose in May?

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

How many hours of daylight does San Jose have in May?

The average day length in May is 14h and 26min.

When is the sunrise / sunset in May in San Jose?

On the first day of May in San Jose, sunrise is at 5:56 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:21 pm CDT.

How many hours of sunshine does San Jose have in May?

In San Jose, Illinois, the average sunshine duration in May is 9.1h.

How high is the UV index in May in San Jose?

In San Jose, Illinois, the average daily maximum UV index in May is 5. A UV Index estimate 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
San Jose, IL

Average temperature in May - San Jose, IL
  • Average high temperature in May: 72.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in May: 55.8°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in May
San Jose, IL

Average pressure in May - San Jose, IL
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in May
San Jose, IL

Average wind speed in May - San Jose, IL
  • Average wind speed in May: 8.8mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in May
San Jose, IL

Average humidity in May - San Jose, IL
  • Average humidity in May: 77%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
San Jose, IL

Average rainfall in May - San Jose, IL
  • Average rainfall in May: 2.83"

The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days in May
San Jose, IL

Average rainfall days in May - San Jose, IL
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.1 days).

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Average snowfall in May
San Jose, IL

Average snowfall in May - San Jose, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
San Jose, IL

Average snowfall days in May - San Jose, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (8.4 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
San Jose, IL

Average daylight in May / Average sunshine in May - San Jose, 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in May
San Jose, IL

Average sunshine days in May - San Jose, IL
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.8 days).

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Average UV index in May
San Jose, IL

Average UV index in May - San Jose, 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
San Jose, IL

Average cloud cover in May - San Jose, IL
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).

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Average visibility in May
San Jose, IL

Average visibility in May - San Jose, 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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San Jose, Illinois, USA

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