May weather forecast
Jerseyville, NJ

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Weather in May

The last month of the spring, May, is a refreshing month in Jerseyville, New Jersey, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 54.5°F (12.5°C).

Temperature

The start of May brings a shift in the average high-temperature, increasing from April's moderate 57.4°F (14.1°C) to a still refreshing 66.7°F (19.3°C). May's nights observe an average temperature of 54.5°F (12.5°C).

Humidity

The months with the highest humidity are May and June, with an average relative humidity of 79%.

Rainfall

In Jerseyville, New Jersey, during May, the rain falls for 16.3 days and regularly aggregates up to 2.95" (75mm) of precipitation. Throughout the year, in Jerseyville, there are 162 rainfall days, and 32.2" (818mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Jerseyville, New Jersey.

Daylight

The average length of the day in May in Jerseyville is 14h and 26min.
On the first day of the month, sunrise is at 5:55 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:29 am and sunset at 8:20 pm EDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Heed the precautions - It is counselled to guard against solar damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the usual temperature for Jerseyville in May?

The average high-temperature, in May, in Jerseyville, is 66.7°F (19.3°C), while the average low-temperature is 54.5°F (12.5°C).

What are the most humid months in Jerseyville?

May and June, with an average relative humidity of 79%, are most humid months in Jerseyville, New Jersey.

What is the average humidity in May in Jerseyville?

In May, the average relative humidity in Jerseyville is 79%.

How many days does it rain in May in Jerseyville?

In Jerseyville, New Jersey, in May, it is raining for 16.3 days, with typically 2.95" (75mm) of accumulated precipitation.

When it does not snow in Jerseyville?

In Jerseyville, snow does not fall in May through September.

Does it snow in Jerseyville in May?

In May, in Jerseyville, New Jersey, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Jerseyville have in May?

In Jerseyville, the average day length in May is 14h and 26min.

When are sunrise and sunset in May in Jerseyville?

On the first day of May, sunrise is at 5:55 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:20 pm EDT.

How many hours of sunshine does Jerseyville have in May?

In May, the average sunshine duration in Jerseyville is 8.9h.

How high is the UV index in May in Jerseyville?

In Jerseyville, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Jerseyville, NJ

Average temperature in May - Jerseyville, NJ
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

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Average pressure in May
Jerseyville, NJ

Average pressure in May - Jerseyville, NJ
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Jerseyville, NJ

Average wind speed in May - Jerseyville, NJ
  • Average wind speed in May: 8.5mph

The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

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Average humidity in May
Jerseyville, NJ

Average humidity in May - Jerseyville, NJ
  • Average humidity in May: 79%

The months with the highest relative humidity are May and June (79%).
The months with the lowest relative humidity are January, March, April and November (74%).

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Average rainfall in May
Jerseyville, NJ

Average rainfall in May - Jerseyville, NJ
  • Average rainfall in May: 2.95"

The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is January (1.93").

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Average rainfall days in May
Jerseyville, NJ

Average rainfall days in May - Jerseyville, NJ
  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (9.2 days).

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Average snowfall in May
Jerseyville, NJ

Average snowfall in May - Jerseyville, NJ
  • Average snowfall in May: 0"

The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Jerseyville, NJ

Average snowfall days in May - Jerseyville, NJ
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (5.3 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
Jerseyville, NJ

Average daylight in May / Average sunshine in May - Jerseyville, NJ
  • 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 July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

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Average sunshine days in May
Jerseyville, NJ

Average sunshine days in May - Jerseyville, NJ
  • Average sunshine days in May: 12.8 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in May
Jerseyville, NJ

Average UV index in May - Jerseyville, NJ
  • 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, March, November and December (UV index 2).

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Average cloud cover in May
Jerseyville, NJ

Average cloud cover in May - Jerseyville, NJ
  • Average cloud cover in May: 43

The months with the most cloud cover are February, March and December (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).

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Average visibility in May
Jerseyville, NJ

Average visibility in May - Jerseyville, NJ
  • 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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Jerseyville, New Jersey, USA

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