May weather forecast
Whittier, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Whittier, Iowa, with an average temperature ranging between min 51.6°F (10.9°C) and max 68.5°F (20.3°C).

Temperature

Whittier's weather shows a temperature rise with the arrival of May, moving from a mild 56.8°F (13.8°C) in April to an agreeable 68.5°F (20.3°C). During the month of May, Whittier anticipates a mean low-temperature of 51.6°F (10.9°C).

Humidity

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

Rainfall

The month with the most rainfall in Whittier, Iowa, is May, when the rain falls for 18.2 days and typically aggregates up to 4.45" (113mm) of precipitation.

Snowfall

In Whittier, snow does not fall in May through September.

Daylight

In Whittier, the average length of the day in May is 14h and 35min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:05 pm. On the last day of May, in Whittier, sunrise is at 5:32 am and sunset at 8:34 pm CDT.

Sunshine

In May, the average sunshine is 8.4h.

UV index

The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 in May interprets into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
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Frequently asked questions

What is the usual temperature for Whittier in May?

The high-temperature, in May, in Whittier, records 68.5°F (20.3°C), while the low-temperature is 51.6°F (10.9°C).

What is the average humidity in May in Whittier?

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

What is the rainiest month in Whittier?

The month with the most rainfall is May, when the rain falls for 18.2 days and typically aggregates up to 4.45" (113mm) of precipitation.

How many days does it rain in May in Whittier?

In Whittier, Iowa, in May, during 18.2 rainfall days, 4.45" (113mm) of precipitation is typically accumulated.

When it does not snow in Whittier?

In Whittier, Iowa, snow does not fall in May through September.

Does it snow in Whittier in May?

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

What is the average length of the day in May in Whittier?

In May, the average day length is 14h and 35min.

When are sunrise and sunset in May in Whittier?

On the first day of May in Whittier, sunrise is at 6:00 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:32 am and sunset at 8:34 pm CDT.

How many hours of sunshine does Whittier have in May?

In May, the average sunshine duration is 8.4h.

What is the UV index intensity in May in Whittier?

In Whittier, Iowa, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Whittier, IA

Average temperature in May - Whittier, IA
  • Average high temperature in May: 68.5°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.5°F).

  • Average low temperature in May: 51.6°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

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Average pressure in May
Whittier, IA

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in May
Whittier, IA

Average wind speed in May - Whittier, IA
  • Average wind speed in May: 9.2mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in May
Whittier, IA

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

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in May
Whittier, IA

Average rainfall in May - Whittier, IA
  • Average rainfall in May: 4.45"

The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days in May
Whittier, IA

Average rainfall days in May - Whittier, IA
  • Average rainfall days in May: 18.2 days

The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (4.1 days).

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Average snowfall in May
Whittier, IA

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

The month with the highest snowfall is January (5.16").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in May
Whittier, IA

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

The month with the highest number of snowfall days is January (11.3 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
Whittier, IA

Average daylight in May / Average sunshine in May - Whittier, 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 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in May
Whittier, IA

Average sunshine days in May - Whittier, IA
  • Average sunshine days in May: 10.9 days

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in May
Whittier, IA

Average UV index in May - Whittier, IA
  • Average UV index in May: 5

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in May
Whittier, IA

Average cloud cover in May - Whittier, IA
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in May
Whittier, IA

Average visibility in May - Whittier, 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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Whittier, Iowa, USA

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