May weather forecast
Saint Johns, IN

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Weather in May

The last month of the spring, May, is a pleasant month in Saint Johns, Indiana, with an average temperature fluctuating between 68.9°F (20.5°C) and 52.2°F (11.2°C).

Temperature

As April transitions into May, Saint Johns sees a rise in the average high-temperature, moving from a refreshing 56.8°F (13.8°C) to a pleasant 68.9°F (20.5°C). The average low-temperature of 52.2°F (11.2°C) is witnessed in Saint Johns during May.

Humidity

The average relative humidity in May is 79%.

Rainfall

May is the month with the most rainfall in Saint Johns. Rain falls for 18.3 days and accumulates 3.11" (79mm) of precipitation.

Snowfall

Months with snowfall in Saint Johns are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Saint Johns aggregates 0.04" (1mm) of snow. In Saint Johns, during the entire year, snow falls for 54.1 days and aggregates up to 13.43" (341mm) of snow.

Daylight

In May, the average length of the day in Saint Johns is 14h and 31min.
On the first day of the month, sunrise is at 6:36 am and sunset at 8:38 pm. On the last day of May, in Saint Johns, sunrise is at 6:09 am and sunset at 9:06 pm EDT.

Sunshine

In May, the average sunshine in Saint Johns, Indiana, is 8.5h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: A daily high UV index of 5 in May leads to these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Saint Johns?

The high-temperature during May is 68.9°F (20.5°C) and the low-temperature is 52.2°F (11.2°C).

What is the average humidity in May in Saint Johns?

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

What is the wettest month in Saint Johns?

The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 3.11" (79mm) of precipitation.

How much does it rain in Saint Johns in May?

In Saint Johns, in May, it is raining for 18.3 days, with typically 3.11" (79mm) of accumulated precipitation.

What is the last month it snows in Saint Johns?

May is the last month it regularly snows in Saint Johns. During 0.1 snowfall days, in May, Saint Johns aggregates 0.04" (1mm) of snow.

How many hours of daylight does Saint Johns have in May?

In Saint Johns, the average day length in May is 14h and 31min.

When are sunrise and sunset in May in Saint Johns?

In May, on the first day of the month, sunrise is at 6:36 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 9:06 pm EDT.

How long on average sun shines in May in Saint Johns?

In May, the average sunshine duration is 8.5h.

What is the UV index intensity in May in Saint Johns?

In May, the average daily maximum UV index in Saint Johns, Indiana, is 5. A UV Index 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
Saint Johns, IN

Average temperature in May - Saint Johns, IN
  • Average high temperature in May: 68.9°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in May: 52.2°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure in May
Saint Johns, IN

Average pressure in May - Saint Johns, IN
  • Average pressure in May: 29.97"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).

Average wind speed in May
Saint Johns, IN

Average wind speed in May - Saint Johns, IN
  • Average wind speed in May: 8.6mph

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 (6.3mph).

Average humidity in May
Saint Johns, IN

Average humidity in May - Saint Johns, IN
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).

Average rainfall in May
Saint Johns, IN

Average rainfall in May - Saint Johns, IN
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are January and December (1.34").

Average rainfall days in May
Saint Johns, IN

Average rainfall days in May - Saint Johns, 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 January (6.8 days).

Average snowfall in May
Saint Johns, IN

Average snowfall in May - Saint Johns, IN
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Saint Johns, IN

Average snowfall days in May - Saint Johns, IN
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Saint Johns, IN

Average daylight in May / Average sunshine in May - Saint Johns, IN
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

Average sunshine days in May
Saint Johns, IN

Average sunshine days in May - Saint Johns, IN
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (9.9 days).

Average UV index in May
Saint Johns, IN

Average UV index in May - Saint Johns, IN
  • Average UV index in May: 5

The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in May
Saint Johns, IN

Average cloud cover in May - Saint Johns, IN
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in May
Saint Johns, IN

Average visibility in May - Saint Johns, IN
  • Average visibility in May: 6mi

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

Saint Johns, Indiana, USA

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