May weather forecast
Fairfax, IN

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Weather in May

The last month of the spring, May, is a pleasant month in Fairfax, Indiana, with an average temperature varying between 53.1°F (11.7°C) and 70.3°F (21.3°C).

Temperature

As May arrives, Fairfax's weather shows an increase in high-temperatures, moving from April's refreshing 58.3°F (14.6°C) to an agreeable 70.3°F (21.3°C). During May, Fairfax witnesses a consistent average low-temperature of 53.1°F (11.7°C).

Humidity

The average relative humidity in May in Fairfax, Indiana, is 77%.

Rainfall

In May, in Fairfax, the rain falls for 17.8 days. Throughout May, 2.91" (74mm) of precipitation is accumulated. In Fairfax, during the entire year, the rain falls for 151.9 days and collects up to 23.39" (594mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Fairfax, Indiana. During 0.1 snowfall days, in May, Fairfax aggregates 0.04" (1mm) of snow. Throughout the year, in Fairfax, Indiana, there are 50 snowfall days, and 12.68" (322mm) of snow is accumulated.

Daylight

The average length of the day in May in Fairfax is 14h and 30min.
On the first day of May, sunrise is at 6:37 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 9:05 pm EDT.

Sunshine

In Fairfax, the average sunshine in May is 8.4h.

UV index

The average daily maximum UV index in May in Fairfax is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 5 in May converts into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
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Frequently asked questions

What are May temperatures in Fairfax?

In Fairfax, in May, the average high-temperature is 70.3°F (21.3°C), and the average low-temperature is 53.1°F (11.7°C).

What is the average humidity in May in Fairfax?

The average relative humidity in May is 77%.

How much does it rain in Fairfax in May?

In Fairfax, Indiana, in May, during 17.8 rainfall days, 2.91" (74mm) of precipitation is typically accumulated.

What is the last month it snows in Fairfax?

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

How many hours of daylight does Fairfax have in May?

In May, the average day length in Fairfax is 14h and 30min.

When are sunrise and sunset in May in Fairfax?

On the first day of May in Fairfax, sunrise is at 6:37 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 9:05 pm EDT.

How many hours of sunshine does Fairfax have in May?

In Fairfax, the average sunshine duration in May is 8.4h.

What is the UV index reading in May in Fairfax?

The average daily maximum UV index in May in Fairfax, Indiana, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
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
Fairfax, IN

Average temperature in May - Fairfax, IN
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).

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Average pressure in May
Fairfax, IN

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

The months with the highest atmospheric pressure are January and 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
Fairfax, IN

Average wind speed in May - Fairfax, IN
  • Average wind speed in May: 8.4mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in May
Fairfax, IN

Average humidity in May - Fairfax, IN
  • Average humidity in May: 77%

The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in May
Fairfax, IN

Average rainfall in May - Fairfax, IN
  • Average rainfall in May: 2.91"

The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is February (1.38").

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Average rainfall days in May
Fairfax, IN

Average rainfall days in May - Fairfax, IN
  • Average rainfall days in May: 17.8 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in May
Fairfax, IN

Average snowfall in May - Fairfax, IN
  • Average snowfall in May: 0.04"

The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Fairfax, IN

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

The month with the highest number of snowfall days is January (13.3 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
Fairfax, IN

Average daylight in May / Average sunshine in May - Fairfax, 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 2min

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 18min).

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Average sunshine days in May
Fairfax, IN

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

The month with the most sunshine days is November (16.1 days).
The month with the least sunshine days is February (10.4 days).

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Average UV index in May
Fairfax, IN

Average UV index in May - Fairfax, 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).

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Average cloud cover in May
Fairfax, IN

Average cloud cover in May - Fairfax, IN
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in May
Fairfax, IN

Average visibility in May - Fairfax, IN
  • Average visibility in May: 6mi

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

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Fairfax, Indiana, USA

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