May weather forecast
Pella, IA

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Weather in May

May brings about a significant change in Pella's weather scenario, featuring the move from spring to early summer. Temperatures are warmer than those experienced in April, and the city experiences the maximum rainfall of 2.09" (53mm) for the year. Longer daylight hours, coupled with increased sunshine, add to the summery feel of the city. The occurrence of snow is next to negligible, clearly marking the end of any lingering winter setting. May typically represents a transitional phase, combining the freshness of spring and the warmth of summer.

Temperature

Pella sees a rise in temperature during May, with average high-temperatures transitioning from a moderate 59.5°F (15.3°C) in April to an agreeable 69.8°F (21°C). An average low-temperature of 52.9°F (11.6°C) is observed during the May nights.

Humidity

In May, the average relative humidity is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 14.3 days and accumulates 2.09" (53mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Pella. During 0.2 snowfall days, in May, Pella aggregates 0.12" (3mm) of snow. In Pella, during the entire year, snow falls for 29.7 days and aggregates up to 5.16" (131mm) of snow.

Daylight

In May, the average length of the day in Pella is 14h and 32min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:09 pm. On the last day of May, sunrise is at 5:40 am and sunset at 8:38 pm CDT.

Sunshine

The average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 in May interprets into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Around midday, solar radiation is most harmful; hence, exposure should be limited. Enhance your sun protection with tightly woven, yet airy clothing. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What are the temperatures in Pella in May?

During May, Pella experiences an average high-temperature of 69.8°F (21°C) and a low-temperature of 52.9°F (11.6°C).

What is the average humidity in May in Pella?

In Pella, the average relative humidity in May is 79%.

What is the wettest month in Pella?

May is the month with the most rainfall in Pella. Rain falls for 14.3 days and accumulates 2.09" (53mm) of precipitation.

How many days does it rain in May in Pella?

In Pella, Iowa, in May, during 14.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

What is the last month it snows in Pella?

May is the last month it regularly snows in Pella. During 0.2 snowfall days, in May, Pella aggregates 0.12" (3mm) of snow.

How many hours of daylight does Pella have in May?

In Pella, Iowa, the average day length in May is 14h and 32min.

When are sunrise and sunset in May in Pella?

On the first day of May in Pella, Iowa, sunrise is at 6:07 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:38 pm CDT.

How long on average sun shines in May in Pella?

The average sunshine duration in May in Pella is 8.6h.

What is the UV index reading in May in Pella?

In Pella, Iowa, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Pella, IA

Average temperature in May - Pella, IA
  • Average high temperature in May: 69.8°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in May: 52.9°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

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Average pressure in May
Pella, IA

Average pressure in May - Pella, 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 (29.89"Hg).

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Average wind speed in May
Pella, IA

Average wind speed in May - Pella, IA
  • Average wind speed in May: 8.9mph

The windiest months (with the highest average wind speed) are March and April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

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Average humidity in May
Pella, IA

Average humidity in May - Pella, IA
  • Average humidity in May: 79%

The months with the highest relative humidity are January, February, June and July (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in May
Pella, IA

Average rainfall in May - Pella, IA
  • Average rainfall in May: 2.09"

The wettest month (with the highest rainfall) is May (2.09").
The driest months (with the least rainfall) are January and February (0.43").

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Average rainfall days in May
Pella, IA

Average rainfall days in May - Pella, IA
  • Average rainfall days in May: 14.3 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in May
Pella, IA

Average snowfall in May - Pella, IA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is January (1.81").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Pella, IA

Average snowfall days in May - Pella, IA
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (7.9 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
Pella, IA

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

  • Average sunshine in May: 8h and 4min

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 12min).

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Average sunshine days in May
Pella, IA

Average sunshine days in May - Pella, IA
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (12.4 days).

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Average UV index in May
Pella, IA

Average UV index in May - Pella, 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
Pella, IA

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

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and September (Cloud cover 30).

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Average visibility in May
Pella, IA

Average visibility in May - Pella, IA
  • Average visibility in May: 6mi

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

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Pella, Iowa, USA

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