May weather forecast
Portage, IN

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Weather in May

The arrival of May is marked by a noticeable leap in temperatures as the residents start gearing up for summer. The month is characterized by ample sunshine and UV exposure, nurturing thriving greenery across the city. Portage experiences substantial rainfall during this month, providing much needed hydration for local ecosystems. In particular, rainfall swells to its peak during May, tipping the scales at 2.99" (76mm). As the days roll further into spring, the wind speed continues its gentle nature.

Temperature

May's onset in Portage brings a temperature rise, moving from a cool 54.7°F (12.6°C) in April to a comfortable 66°F (18.9°C). Portage records an average nighttime low-temperature of 51.6°F (10.9°C) throughout May.

Humidity

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

Rainfall

In Portage, in May, it is raining for 16.8 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 157.4 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Portage, the average length of the day in May is 14h and 33min.
On the first day of the month, sunrise is at 5:44 am and sunset at 7:47 pm. On the last day of May, sunrise is at 5:17 am and sunset at 8:16 pm CDT.

Sunshine

The average sunshine in May is 8.7h.

UV index

The average daily maximum UV index in May in Portage is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: The UV index of 5 during May leads to these advisories:
Act with care - Obligation to protect against skin and eye damage is highlighted. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
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Frequently asked questions

What is the usual temperature for Portage in May?

The high-temperature, in May, in Portage, is 66°F (18.9°C), while the low-temperature averages to 51.6°F (10.9°C).

What is the average humidity in May in Portage?

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

How many days does it rain in May in Portage?

In Portage, during May, the rain falls for 16.8 days and regularly aggregates up to 2.99" (76mm) of precipitation.

When it does not snow in Portage?

In Portage, snow does not fall in May through October.

Does it snow in Portage in May?

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

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

In Portage, Indiana, the average day length in May is 14h and 33min.

When is the sunrise / sunset in May in Portage?

In May, on the first day of the month, sunrise is at 5:44 am and sunset at 7:47 pm. On the last day of the month, in Portage, sunrise is at 5:17 am and sunset at 8:16 pm CDT.

How long on average sun shines in May in Portage?

In May, the average sunshine duration is 8.7h.

How high is the UV index in May in Portage?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk 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
Portage, IN

Average temperature in May - Portage, IN
  • Average high temperature in May: 66°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30.2°F).

  • Average low temperature in May: 51.6°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in May
Portage, IN

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in May
Portage, IN

Average wind speed in May - Portage, IN
  • Average wind speed in May: 8.8mph

The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in May
Portage, IN

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

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in May
Portage, IN

Average rainfall in May - Portage, IN
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is February (1.18").

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Average rainfall days in May
Portage, IN

Average rainfall days in May - Portage, IN
  • Average rainfall days in May: 16.8 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (7.2 days).

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Average snowfall in May
Portage, IN

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

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

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Average snowfall days in May
Portage, IN

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

The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Portage, 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 12min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in May
Portage, IN

Average sunshine days in May - Portage, IN
  • Average sunshine days in May: 11.8 days

The month with the most sunshine days is November (15.7 days).
The months with the least sunshine days are June and August (10.4 days).

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Average UV index in May
Portage, IN

Average UV index in May - Portage, 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 and December (UV index 1).

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Average cloud cover in May
Portage, IN

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

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in May
Portage, IN

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

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

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Portage, Indiana, USA

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