May weather forecast
Sergeant Bluff, IA

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Weather in May

May, the last month of the spring in Sergeant Bluff, is an agreeable month, with an average temperature fluctuating between 52.5°F (11.4°C) and 70°F (21.1°C).

Temperature

The beginning of May marks a shift in the average high-temperature, moving from April's mild 58.6°F (14.8°C) to a pleasant 70°F (21.1°C). Throughout May, Sergeant Bluff anticipates an average low-temperature of 52.5°F (11.4°C).

Humidity

The average relative humidity in May is 70%.

Rainfall

In Sergeant Bluff, during May, the rain falls for 13.5 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 102.3 rainfall days, and 12.91" (328mm) of precipitation is accumulated.

Snowfall

In Sergeant Bluff, snow does not fall in May through September.

Daylight

In May, the average length of the day is 14h and 37min.
On the first day of May, sunrise is at 6:19 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:55 pm CDT.

Sunshine

In May, the average sunshine is 8.9h.

UV index

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 5 in May leads to these guidelines:
Heed the precautions - It is counselled to guard against solar damage. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Sergeant Bluff in May?

In Sergeant Bluff, 70°F (21.1°C) is the average high-temperature and 52.5°F (11.4°C) is the average low-temperature during May.

What is the average humidity in May?

In May, the average relative humidity is 70%.

How much does it rain in May?

In Sergeant Bluff, in May, it is raining for 13.5 days, with typically 1.73" (44mm) 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.

What is the average length of the day in May?

In Sergeant Bluff, the average day length in May is 14h and 37min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:19 am and sunset at 8:25 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:55 pm CDT.

How many hours of sunshine does Sergeant Bluff have in May?

In Sergeant Bluff, the average sunshine duration in May is 8.9h.

What is the UV index reading in May?

The average daily maximum UV index in May in Sergeant Bluff is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Sergeant Bluff, IA

Average temperature in May - Sergeant Bluff, IA
  • Average high temperature in May: 70°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in May: 52.5°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in May
Sergeant Bluff, IA

Average pressure in May - Sergeant Bluff, IA
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in May
Sergeant Bluff, IA

Average wind speed in May - Sergeant Bluff, IA
  • Average wind speed in May: 9.4mph

The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

Average humidity in May
Sergeant Bluff, IA

Average humidity in May - Sergeant Bluff, IA
  • Average humidity in May: 70%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (65%).

Average rainfall in May
Sergeant Bluff, IA

Average rainfall in May - Sergeant Bluff, IA
  • Average rainfall in May: 1.73"

The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are January and February (0.39").

Average rainfall days in May
Sergeant Bluff, IA

Average rainfall days in May - Sergeant Bluff, IA
  • Average rainfall days in May: 13.5 days

The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is January (2.6 days).

Average snowfall in May
Sergeant Bluff, IA

Average snowfall in May - Sergeant Bluff, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Sergeant Bluff, IA

Average snowfall days in May - Sergeant Bluff, IA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (8.2 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
Sergeant Bluff, IA

Average daylight in May / Average sunshine in May - Sergeant Bluff, IA
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in May
Sergeant Bluff, IA

Average sunshine days in May - Sergeant Bluff, IA
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (13.1 days).

Average UV index in May
Sergeant Bluff, IA

Average UV index in May - Sergeant Bluff, IA
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in May
Sergeant Bluff, IA

Average cloud cover in May - Sergeant Bluff, IA
  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in May
Sergeant Bluff, IA

Average visibility in May - Sergeant Bluff, 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).

Sergeant Bluff, Iowa, USA

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