May weather forecast
Jefferson, IN

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Weather in May

May, the last month of the spring in Jefferson, is a pleasant month, with an average temperature fluctuating between 55°F (12.8°C) and 71.4°F (21.9°C).

Temperature

As April transitions into May, a change in temperatures is observed, with average highs moving from a mild 60.3°F (15.7°C) to a pleasant 71.4°F (21.9°C). In Jefferson, the nighttime temperature averages to a fresh 55°F (12.8°C) during May.

Humidity

The average relative humidity in May is 78%.

Rainfall

In Jefferson, in May, it is raining for 18.3 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 139.5 rainfall days, and 18.07" (459mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Jefferson, Indiana.

Daylight

In Jefferson, the average length of the day in May is 14h and 26min.
On the first day of May in Jefferson, sunrise is at 6:44 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:09 pm EDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In May, a daily UV index of 5 turns into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the temperature in May in Jefferson?

May temperatures vary between a high-temperature of 71.4°F (21.9°C) and a low-temperature of 55°F (12.8°C).

What is the average humidity in May in Jefferson?

In May, the average relative humidity is 78%.

How much does it rain in Jefferson in May?

In Jefferson, in May, during 18.3 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

When it does not snow in Jefferson?

May through September are months without snowfall.

Does it snow in Jefferson in May?

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

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

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

When are sunrise and sunset in May in Jefferson?

On the first day of May in Jefferson, Indiana, sunrise is at 6:44 am and sunset at 8:42 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:09 pm EDT.

How many hours of sunshine does Jefferson have in May?

In Jefferson, Indiana, the average sunshine duration in May is 8.6h.

How high is the UV index in May in Jefferson?

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Jefferson, IN

Average temperature in May - Jefferson, IN
  • Average high temperature in May: 71.4°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in May
Jefferson, IN

Average pressure in May - Jefferson, IN
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Jefferson, IN

Average wind speed in May - Jefferson, IN
  • Average wind speed in May: 8.5mph

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
Jefferson, IN

Average humidity in May - Jefferson, IN
  • Average humidity in May: 78%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in May
Jefferson, IN

Average rainfall in May - Jefferson, IN
  • Average rainfall in May: 2.24"

The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is February (0.94").

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Average rainfall days in May
Jefferson, IN

Average rainfall days in May - Jefferson, IN
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.8 days).

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Average snowfall in May
Jefferson, IN

Average snowfall in May - Jefferson, IN
  • Average snowfall in May: 0"

The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Jefferson, IN

Average snowfall days in May - Jefferson, IN
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (8.4 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
Jefferson, IN

Average daylight in May / Average sunshine in May - Jefferson, IN
  • 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 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in May
Jefferson, IN

Average sunshine days in May - Jefferson, IN
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.8 days).

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Average UV index in May
Jefferson, IN

Average UV index in May - Jefferson, IN
  • 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, October, November and December (UV index 2).

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Average cloud cover in May
Jefferson, IN

Average cloud cover in May - Jefferson, IN
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in May
Jefferson, IN

Average visibility in May - Jefferson, IN
  • 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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Jefferson, Indiana, USA

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