May weather forecast
Northfield, IL

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Weather in May

The last month of the spring, May, is a comfortable month in Northfield, Illinois, with an average temperature varying between 62.8°F (17.1°C) and 50.4°F (10.2°C).

Temperature

The onset of May brings a rise in the average high-temperature, elevating from a cool 52°F (11.1°C) in April to a comfortable 62.8°F (17.1°C). In Northfield, May is marked by an average low-temperature of 50.4°F (10.2°C).

Humidity

The average relative humidity in May is 77%.

Rainfall

The months with the most rainfall in Northfield are May and June, with an average 4.57" (116mm) of precipitation.

Snowfall

Months with snowfall in Northfield, Illinois, are January through May, October through December. May is the last month it regularly snows in Northfield. During 0.1 snowfall days, in May, Northfield aggregates 0.08" (2mm) of snow. Throughout the year, in Northfield, Illinois, there are 47.6 snowfall days, and 17.8" (452mm) of snow is accumulated.

Daylight

In Northfield, the average length of the day in May is 14h and 35min.
On the first day of May, sunrise is at 5:45 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:20 pm CDT.

Sunshine

The average sunshine in May in Northfield is 8.7h.

UV index

The average daily maximum UV index in May in Northfield, Illinois, is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 5 during May morphs into the following directions:
Make use of precautions - It is urged to ward off sun damage. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What is the average May temperature in Northfield?

The high-temperature, in May, in Northfield, is 62.8°F (17.1°C), while the low-temperature averages to 50.4°F (10.2°C).

What is the average humidity in May in Northfield?

In Northfield, Illinois, the average relative humidity in May is 77%.

What is the rainiest month in Northfield?

The months with the most rainfall in Northfield, Illinois, are May and June, with an average 4.57" (116mm) of precipitation.

How much does it rain in Northfield in May?

In May, the rain falls for 19.1 days. Throughout May, 4.57" (116mm) of precipitation is accumulated.

What is the last month it snows in Northfield?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Northfield aggregates 0.08" (2mm) of snow.

What is the average length of the day in May in Northfield?

The average day length in May in Northfield is 14h and 35min.

What time are sunrise and sunset in May in Northfield?

In May, on the first day of the month, sunrise is at 5:45 am and sunset at 7:50 pm. On the last day of the month, in Northfield, Illinois, sunrise is at 5:17 am and sunset at 8:20 pm CDT.

How many hours of sunshine does Northfield have in May?

In May, the average sunshine duration is 8.7h.

What is the UV index reading in May in Northfield?

The average daily maximum UV index in May in Northfield is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Northfield, IL

Average temperature in May - Northfield, IL
  • Average high temperature in May: 62.8°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in May: 50.4°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in May
Northfield, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in May
Northfield, IL

Average wind speed in May - Northfield, IL
  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).

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Average humidity in May
Northfield, IL

Average humidity in May - Northfield, IL
  • Average humidity in May: 77%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in May
Northfield, IL

Average rainfall in May - Northfield, IL
  • Average rainfall in May: 4.57"

The wettest months (with the highest rainfall) are May and June (4.57").
The driest month (with the least rainfall) is December (1.65").

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Average rainfall days in May
Northfield, IL

Average rainfall days in May - Northfield, IL
  • Average rainfall days in May: 19.1 days

The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is February (6.1 days).

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Average snowfall in May
Northfield, IL

Average snowfall in May - Northfield, IL
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (4.84").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Northfield, IL

Average snowfall days in May - Northfield, IL
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Northfield, IL

Average daylight in May / Average sunshine in May - Northfield, IL
  • Average daylight in May: 14h and 4min

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

  • Average sunshine in May: 8h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in May
Northfield, IL

Average sunshine days in May - Northfield, IL
  • Average sunshine days in May: 10 days

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (9.2 days).

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Average UV index in May
Northfield, IL

Average UV index in May - Northfield, IL
  • Average UV index in May: 5

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Northfield, IL

Average cloud cover in May - Northfield, IL
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in May
Northfield, IL

Average visibility in May - Northfield, 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).

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Northfield, Illinois, USA

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