May weather forecastFlackville, IN

May

Weather in May

The last month of the spring, May, is an agreeable month in Flackville, Indiana, with an average temperature fluctuating between 71.6°F (22°C) and 55.6°F (13.1°C).

Temperature

May's arrival signals an increase in average high-temperatures, moving from April's comfortable 61.3°F (16.3°C) to an agreeable 71.6°F (22°C). During the month of May, Flackville experiences a steady low-temperature average of 55.6°F (13.1°C).

Humidity

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

Rainfall

May is the month with the most rainfall. Rain falls for 19 days and accumulates 3.39" (86mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Flackville aggregates 0.04" (1mm) of snow. In Flackville, during the entire year, snow falls for 36.9 days and aggregates up to 10.12" (257mm) of snow.

Daylight

In Flackville, the average length of the day in May is 14h and 23min.
On the first day of May, sunrise is at 6:44 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:06 pm EDT.

Sunshine

The average sunshine in May in Flackville, Indiana, is 8.7h.

UV index

The average daily maximum UV index in May 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: The daily high UV index of 5 during May translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Around midday, solar radiation is most harmful; hence, exposure should be limited. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Flackville, in May, the average high-temperature is 71.6°F (22°C), and the average low-temperature is 55.6°F (13.1°C).

In May, the average relative humidity is 79%.

May is the month with the most rainfall. Rain falls for 19 days and accumulates 3.39" (86mm) of precipitation.

In May, the rain falls for 19 days. Throughout May, 3.39" (86mm) of precipitation is accumulated.

May is the last month it regularly snows. During 0.2 snowfall days, in May, Flackville aggregates 0.04" (1mm) of snow.

In May, the average day length is 14h and 23min.

In May, on the first day of the month, sunrise is at 6:44 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:06 pm EDT.

In May, the average sunshine duration is 8.7h.

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Flackville, IN

  • Average high temperature in May: 71.6°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in May: 55.6°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).

Average pressure in May
Flackville, IN

  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Flackville, IN

  • Average wind speed in May: 8mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in May
Flackville, IN

  • Average humidity in May: 79%

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

Average rainfall in May
Flackville, IN

  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is February (1.54").

Average rainfall days in May
Flackville, IN

  • Average rainfall days in May: 19 days

The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (8.4 days).

Average snowfall in May
Flackville, IN

  • Average snowfall in May: 0.04"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Flackville, IN

  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in May: 14h and 24min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 42min

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in May
Flackville, IN

  • Average sunshine days in May: 9.3 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in May
Flackville, IN

  • 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).

Average cloud cover in May
Flackville, IN

  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May
Flackville, IN

  • 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).