May weather forecast
Webster City, IA

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Weather in May

May, the last month of the spring in Webster City, is an agreeable month, with an average temperature fluctuating between 52.5°F (11.4°C) and 69.1°F (20.6°C).

Temperature

The onset of May marks an increase in the average high-temperature, moving from a moderate 57.6°F (14.2°C) in April to a pleasant 69.1°F (20.6°C). Webster City's temperature drops to an average low of 52.5°F (11.4°C) during the nights of May.

Humidity

In May, the average relative humidity is 73%.

Rainfall

In Webster City, in May, it is raining for 17.9 days, with typically 3.82" (97mm) of accumulated precipitation. In Webster City, during the entire year, the rain falls for 135.2 days and collects up to 26.5" (673mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Webster City. During 0.3 snowfall days, in May, Webster City aggregates 0.2" (5mm) of snow. Throughout the year, in Webster City, there are 41.8 snowfall days, and 16.61" (422mm) of snow is accumulated.

Daylight

In Webster City, the average length of the day in May is 14h and 38min.
On the first day of May, sunrise is at 6:08 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:45 pm CDT.

Sunshine

In May, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in May in Webster City is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The daily maximum UV index of 5 in May interprets into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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Frequently asked questions

What are the temperatures in Webster City in May?

May temperatures vary between a high-temperature of 69.1°F (20.6°C) and a low-temperature of 52.5°F (11.4°C).

What is the average humidity in May in Webster City?

The average relative humidity in May in Webster City, Iowa, is 73%.

How much does it rain in Webster City in May?

In May, in Webster City, Iowa, the rain falls for 17.9 days. Throughout May, 3.82" (97mm) of precipitation is accumulated.

What is the last month it snows in Webster City?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Webster City aggregates 0.2" (5mm) of snow.

How many hours of daylight does Webster City have in May?

In Webster City, the average day length in May is 14h and 38min.

What time are sunrise and sunset in May in Webster City?

On the first day of May in Webster City, sunrise is at 6:08 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:45 pm CDT.

How many hours of sunshine does Webster City have in May?

In Webster City, the average sunshine duration in May is 8.5h.

How high is the UV index in May in Webster City?

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

Average temperature in May - Webster City, IA
  • Average high temperature in May: 69.1°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in May: 52.5°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).

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Average pressure in May
Webster City, IA

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in May
Webster City, IA

Average wind speed in May - Webster City, 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 (7.2mph).

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Average humidity in May
Webster City, IA

Average humidity in May - Webster City, IA
  • Average humidity in May: 73%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in May
Webster City, IA

Average rainfall in May - Webster City, IA
  • Average rainfall in May: 3.82"

The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.98").

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Average rainfall days in May
Webster City, IA

Average rainfall days in May - Webster City, IA
  • Average rainfall days in May: 17.9 days

The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in May
Webster City, IA

Average snowfall in May - Webster City, IA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (4.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Webster City, IA

Average snowfall days in May - Webster City, IA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Webster City, IA

Average daylight in May / Average sunshine in May - Webster City, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in May
Webster City, IA

Average sunshine days in May - Webster City, IA
  • Average sunshine days in May: 11.2 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.8 days).

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Average UV index in May
Webster City, IA

Average UV index in May - Webster City, 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).

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Average cloud cover in May
Webster City, IA

Average cloud cover in May - Webster City, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).

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Average visibility in May
Webster City, IA

Average visibility in May - Webster City, IA
  • Average visibility in May: 6mi

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

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Webster City, Iowa, USA

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