May weather forecast
Grant, IA

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Weather in May

May, the last month of the spring in Grant, is an agreeable month, with an average temperature fluctuating between 70.2°F (21.2°C) and 53.1°F (11.7°C).

Temperature

May brings a rise in Grant's average high-temperature, moving from a refreshing 60.1°F (15.6°C) in April to an agreeable 70.2°F (21.2°C). An average low-temperature of 53.1°F (11.7°C) marks the nights throughout May.

Humidity

The average relative humidity in May in Grant is 78%.

Rainfall

In Grant, during May, the rain falls for 16.5 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, there are 115.1 rainfall days, and 19.21" (488mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day is 14h and 31min.
On the first day of the month, sunrise is at 6:16 am and sunset at 8:17 pm. On the last day of May, sunrise is at 5:49 am and sunset at 8:45 pm CDT.

Sunshine

In Grant, the average sunshine in May is 8.5h.

UV index

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in May transforms into the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. To avoid the Sun's strongest rays, limit exposure around the mid-day period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average May temperature?

The high-temperature, in May, in Grant, is 70.2°F (21.2°C), while the low-temperature averages to 53.1°F (11.7°C).

What is the average humidity in May?

The average relative humidity in May is 78%.

How much does it rain in May?

In Grant, in May, it is raining for 16.5 days, with typically 3.19" (81mm) of accumulated precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in Grant in May?

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

How many hours of daylight does Grant have in May?

The average day length in May is 14h and 31min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:16 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:45 pm CDT.

How many hours of sunshine does Grant have in May?

In May, the average sunshine duration is 8.5h.

What is the UV index intensity in May in Grant?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Grant, IA

Average temperature in May - Grant, IA
  • Average high temperature in May: 70.2°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in May: 53.1°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 (16°F).

Average pressure in May
Grant, IA

Average pressure in May - Grant, IA
  • Average pressure in May: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in May
Grant, IA

Average wind speed in May - Grant, IA
  • Average wind speed in May: 8.8mph

The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is July (7mph).

Average humidity in May
Grant, IA

Average humidity in May - Grant, IA
  • Average humidity in May: 78%

The months with the highest relative humidity are January and June (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in May
Grant, IA

Average rainfall in May - Grant, IA
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in May
Grant, IA

Average rainfall days in May - Grant, IA
  • Average rainfall days in May: 16.5 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (3 days).

Average snowfall in May
Grant, IA

Average snowfall in May - Grant, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Grant, IA

Average snowfall days in May - Grant, IA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Grant, IA

Average daylight in May / Average sunshine in May - Grant, IA
  • 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 3min

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 24min).

Average sunshine days in May
Grant, IA

Average sunshine days in May - Grant, IA
  • Average sunshine days in May: 12 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is May (12 days).

Average UV index in May
Grant, IA

Average UV index in May - Grant, IA
  • 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 January (UV index 1).

Average cloud cover in May
Grant, IA

Average cloud cover in May - Grant, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).

Average visibility in May
Grant, IA

Average visibility in May - Grant, IA
  • 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).

Grant, Iowa, USA

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