May weather forecast
Cedar Rapids, IA

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Nice aerial capture of the skyline over Cedar Rapids in Iowa
Nice aerial capture of the skyline over Cedar Rapids in Iowa

Weather in May

As Cedar Rapids transitions into summer, May experiences the highest rainfall for the year at 3.07" (78mm). Still, the days continue to get longer and warmer, offering residents ample time to revel in the blooming cityscape. The rainfall, in tandem with the rising temperatures, culminates in a slightly more humid environment. Despite some windy days, the weather remains comfortably pleasant overall. Preparing for the upcoming summer, the UV index rises, prompting residents to take appropriate precautions.

Temperature

May shows a rise in the average high-temperature, moving from April's refreshing 57.9°F (14.4°C) to a pleasant 68.9°F (20.5°C). Cedar Rapids experiences a steady low-temperature of 52.3°F (11.3°C) throughout May.

Humidity

The average relative humidity in May is 79%.

Rainfall

The month with the most rainfall in Cedar Rapids is May, when the rain falls for 16 days and typically aggregates up to 3.07" (78mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

The average length of the day in May is 14h and 35min.
On the first day of May, sunrise is at 6:01 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:35 pm CDT.

Sunshine

In May, the average sunshine is 8.7h.

UV index

In Cedar Rapids, 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 the ordinary person.
Note: An average UV index of 5 in May transforms into this advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What is the average May temperature in Cedar Rapids?

An average high-temperature, in May, in Cedar Rapids, is 68.9°F (20.5°C) and the average low-temperature is 52.3°F (11.3°C).

What is the average humidity in May in Cedar Rapids?

In May, the average relative humidity is 79%.

What is the rainiest month in Cedar Rapids?

May is the month with the most rainfall in Cedar Rapids, Iowa. Rain falls for 16 days and accumulates 3.07" (78mm) of precipitation.

How much does it rain in Cedar Rapids in May?

In Cedar Rapids, during May, the rain falls for 16 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow in Cedar Rapids?

In Cedar Rapids, snow does not fall in May through September.

Does it snow in Cedar Rapids in May?

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

How many hours of daylight does Cedar Rapids have in May?

In May, the average day length in Cedar Rapids, Iowa, is 14h and 35min.

When are sunrise and sunset in May in Cedar Rapids?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 8:05 pm. On the last day of the month, in Cedar Rapids, sunrise is at 5:33 am and sunset at 8:35 pm CDT.

How many hours of sunshine does Cedar Rapids have in May?

In Cedar Rapids, Iowa, the average sunshine duration in May is 8.7h.

How high is the UV index in May in Cedar Rapids?

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health 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
Cedar Rapids, IA

Average temperature in May - Cedar Rapids, IA
  • Average high temperature in May: 68.9°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 (26.2°F).

  • Average low temperature in May: 52.3°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).

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Average pressure in May
Cedar Rapids, IA

Average pressure in May - Cedar Rapids, IA
  • Average pressure in May: 29.94"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in May
Cedar Rapids, IA

Average wind speed in May - Cedar Rapids, IA
  • Average wind speed in May: 9.1mph

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in May
Cedar Rapids, IA

Average humidity in May - Cedar Rapids, IA
  • Average humidity in May: 79%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in May
Cedar Rapids, IA

Average rainfall in May - Cedar Rapids, IA
  • Average rainfall in May: 3.07"

The wettest month (with the highest rainfall) is May (3.07").
The driest months (with the least rainfall) are January and February (0.63").

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Average rainfall days in May
Cedar Rapids, IA

Average rainfall days in May - Cedar Rapids, IA
  • Average rainfall days in May: 16 days

The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is February (3 days).

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Average snowfall in May
Cedar Rapids, IA

Average snowfall in May - Cedar Rapids, IA
  • Average snowfall in May: 0"

The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Cedar Rapids, IA

Average snowfall days in May - Cedar Rapids, IA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in May /
Average sunshine in May
Cedar Rapids, IA

Average daylight in May / Average sunshine in May - Cedar Rapids, 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 12min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in May
Cedar Rapids, IA

Average sunshine days in May - Cedar Rapids, IA
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is June (11.8 days).

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Average UV index in May
Cedar Rapids, IA

Average UV index in May - Cedar Rapids, IA
  • Average UV index in May: 5

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

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Average cloud cover in May
Cedar Rapids, IA

Average cloud cover in May - Cedar Rapids, IA
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are August and September (Cloud cover 30).

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Average visibility in May
Cedar Rapids, IA

Average visibility in May - Cedar Rapids, IA
  • 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).

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Cedar Rapids, Iowa, USA

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