Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May sees a rise in the average high-temperature, climbing from a mild 59.5°F (15.3°C) in April to an agreeable 70.5°F (21.4°C). In Portland, the nighttime temperature averages to a fresh 54.1°F (12.3°C) during May.Humidity
The average relative humidity in May in Portland, Indiana, is 78%.Rainfall
May is the month with the most rainfall in Portland. Rain falls for 13.9 days and accumulates 1.1" (28mm) of precipitation.Snowfall
May through September are months without snowfall in Portland, Indiana.Daylight
The average length of the day in May is 14h and 26min.On the first day of the month, sunrise is at 6:37 am and sunset at 8:35 pm. On the last day of May, in Portland, sunrise is at 6:11 am and sunset at 9:03 pm EDT.
Sunshine
The average sunshine in May is 8.5h.UV index
In Portland, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Portland?
What is the average humidity in May in Portland?
What is the rainiest month in Portland?
How many days does it rain in May in Portland?
When it does not snow in Portland?
Does it snow in Portland in May?
What is the average length of the day in May in Portland?
When are sunrise and sunset in May in Portland?
How many hours of sunshine does Portland have in May?
How high is the UV index in May in Portland?
Average temperature in May
Portland, IN
- Average high temperature in May: 70.5°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 (31.6°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
Portland, IN
- Average pressure in May: 29.97"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Portland, IN
- Average wind speed in May: 8.4mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in May
Portland, IN
- Average humidity in May: 78%
The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Portland, IN
- Average rainfall in May: 1.1"
The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in May
Portland, IN
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is May (13.9 days).
The months with the least rainy days are January and February (4.8 days).
Average snowfall in May
Portland, IN
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Portland, IN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.8 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
Portland, IN
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
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 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in May
Portland, IN
- Average sunshine days in May: 13.5 days
The months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in May
Portland, 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
Portland, IN
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in May
Portland, IN
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
Portland, Indiana, USA
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