May weather forecast
Harper, IN

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Weather in May

The last month of the spring, May, is a pleasant month in Harper, Indiana, with temperature in the range of an average high of 72.9°F (22.7°C) and an average low of 55.9°F (13.3°C).

Temperature

As Harper transitions into May, a rise in the average high-temperature is observed, moving from a comfortable 63°F (17.2°C) in April to a pleasant 72.9°F (22.7°C). In Harper, an average nighttime temperature of 55.9°F (13.3°C) is expected during May.

Humidity

In Harper, the average relative humidity in May is 80%.

Rainfall

May is the month with the most rainfall. Rain falls for 15.4 days and accumulates 2.01" (51mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day is 14h and 20min.
On the first day of the month, sunrise is at 6:42 am and sunset at 8:35 pm. On the last day of May, sunrise is at 6:18 am and sunset at 9:02 pm EDT.

Sunshine

In May, the average sunshine is 8.8h.

UV index

In Harper, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 5 in May suggests the following recommendations:
Exercise prevention - Warding off sunburn is urged. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

May temperatures vary between a high-temperature of 72.9°F (22.7°C) and a low-temperature of 55.9°F (13.3°C).

What is the average humidity in May?

In Harper, the average relative humidity in May is 80%.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 15.4 days and typically aggregates up to 2.01" (51mm) of precipitation.

How many days does it rain in May?

In Harper, in May, it is raining for 15.4 days, with typically 2.01" (51mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in May?

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

How many hours of daylight does Harper have in May?

In May, the average day length is 14h and 20min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:42 am and sunset at 8:35 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 9:02 pm EDT.

How many hours of sunshine does Harper have in May?

In May, the average sunshine duration is 8.8h.

How high is the UV index in May?

The average daily maximum UV index in May in Harper is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe 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
Harper, IN

Average temperature in May - Harper, IN
  • Average high temperature in May: 72.9°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in May: 55.9°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 (22.8°F).

Average pressure in May
Harper, IN

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

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

Average wind speed in May
Harper, IN

Average wind speed in May - Harper, IN
  • Average wind speed in May: 7.2mph

The windiest months (with the highest average wind speed) are January and February (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).

Average humidity in May
Harper, IN

Average humidity in May - Harper, IN
  • Average humidity in May: 80%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (74%).

Average rainfall in May
Harper, IN

Average rainfall in May - Harper, IN
  • Average rainfall in May: 2.01"

The wettest month (with the highest rainfall) is May (2.01").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days in May
Harper, IN

Average rainfall days in May - Harper, IN
  • Average rainfall days in May: 15.4 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (7.9 days).

Average snowfall in May
Harper, IN

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

The month with the highest snowfall is March (1.46").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Harper, IN

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

The month with the highest number of snowfall days is February (7.3 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
Harper, IN

Average daylight in May / Average sunshine in May - Harper, IN
  • Average daylight in May: 14h and 2min

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 30min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in May
Harper, IN

Average sunshine days in May - Harper, IN
  • Average sunshine days in May: 13.2 days

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (12.4 days).

Average UV index in May
Harper, IN

Average UV index in May - Harper, 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
Harper, IN

Average cloud cover in May - Harper, IN
  • Average cloud cover in May: 42

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
Harper, IN

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

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

Harper, Indiana, USA

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