May weather forecast
Bethlehem, IN

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Weather in May

May, the last month of the spring in Bethlehem, is a warm month, with an average temperature ranging between max 74.8°F (23.8°C) and min 56.1°F (13.4°C).

Temperature

The beginning of May signals a rise in the average high-temperature, moving from a refreshing 64.9°F (18.3°C) in April to a warm 74.8°F (23.8°C). In Bethlehem, an average low-temperature of 56.1°F (13.4°C) is recorded during May nights.

Humidity

The average relative humidity in May in Bethlehem is 79%.

Rainfall

In May, the rain falls for 17.2 days. Throughout May, 2.32" (59mm) of precipitation is accumulated. In Bethlehem, during the entire year, the rain falls for 147.9 days and collects up to 23.98" (609mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in May is 14h and 17min.
On the first day of May in Bethlehem, sunrise is at 6:43 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:59 pm EDT.

Sunshine

In May, the average sunshine is 9h.

UV index

In May, the average daily maximum UV index in Bethlehem is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Bethlehem?

An average high-temperature, in May, in Bethlehem, is 74.8°F (23.8°C) and the average low-temperature is 56.1°F (13.4°C).

What is the average humidity in May in Bethlehem?

In May, the average relative humidity is 79%.

How many days does it rain in May in Bethlehem?

In Bethlehem, during May, the rain falls for 17.2 days and regularly aggregates up to 2.32" (59mm) of precipitation.

When it does not snow in Bethlehem?

May through September are months without snowfall.

Does it snow in Bethlehem in May?

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

How many hours of daylight does Bethlehem have in May?

In Bethlehem, Indiana, the average day length in May is 14h and 17min.

When are sunrise and sunset in May in Bethlehem?

On the first day of May, sunrise is at 6:43 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:59 pm EDT.

How long on average sun shines in May in Bethlehem?

The average sunshine duration in May in Bethlehem, Indiana, is 9h.

What is the UV index reading in May in Bethlehem?

In Bethlehem, Indiana, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes 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
Bethlehem, IN

Average temperature in May - Bethlehem, IN
  • Average high temperature in May: 74.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.3°F).

  • Average low temperature in May: 56.1°F

The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).

Average pressure in May
Bethlehem, IN

Average pressure in May - Bethlehem, IN
  • Average pressure in May: 29.98"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in May
Bethlehem, IN

Average wind speed in May - Bethlehem, IN
  • Average wind speed in May: 6.5mph

The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in May
Bethlehem, IN

Average humidity in May - Bethlehem, IN
  • Average humidity in May: 79%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).

Average rainfall in May
Bethlehem, IN

Average rainfall in May - Bethlehem, IN
  • Average rainfall in May: 2.32"

The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is September (1.3").

Average rainfall days in May
Bethlehem, IN

Average rainfall days in May - Bethlehem, IN
  • Average rainfall days in May: 17.2 days

The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in May
Bethlehem, IN

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

The month with the highest snowfall is March (1.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Bethlehem, IN

Average snowfall days in May - Bethlehem, IN
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Bethlehem, IN

Average daylight in May / Average sunshine in May - Bethlehem, IN
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in May: 9h and 0min

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

Average sunshine days in May
Bethlehem, IN

Average sunshine days in May - Bethlehem, IN
  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is May (11.9 days).

Average UV index in May
Bethlehem, IN

Average UV index in May - Bethlehem, 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, November and December (UV index 2).

Average cloud cover in May
Bethlehem, IN

Average cloud cover in May - Bethlehem, IN
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in May
Bethlehem, IN

Average visibility in May - Bethlehem, IN
  • Average visibility in May: 5mi

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

Bethlehem, Indiana, USA

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