May weather forecast
Miller, IA

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Weather in May

The last month of the spring, May, is an enjoyable month in Miller, Iowa, with an average temperature fluctuating between 51.4°F (10.8°C) and 67.5°F (19.7°C).

Temperature

May brings a rise in Miller's average high-temperature, moving from a cool 54.9°F (12.7°C) in April to a comfortable 67.5°F (19.7°C). Miller cools down to an average low-temperature of 51.4°F (10.8°C) throughout the month of May.

Humidity

In May, the average relative humidity in Miller, Iowa, is 72%.

Rainfall

In Miller, Iowa, in May, during 18.3 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. Throughout the year, in Miller, there are 136.2 rainfall days, and 25.39" (645mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Miller, Iowa. May is the last month it regularly snows in Miller. During 0.3 snowfall days, in May, Miller aggregates 0.43" (11mm) of snow. In Miller, during the entire year, snow falls for 55.1 days and aggregates up to 22.05" (560mm) of snow.

Daylight

In May, the average length of the day in Miller is 14h and 41min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:16 pm. On the last day of May, in Miller, sunrise is at 5:37 am and sunset at 8:47 pm CDT.

Sunshine

In Miller, Iowa, the average sunshine in May is 8.5h.

UV index

In May, the average daily maximum UV index in Miller is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 5 in May transforms into this advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What are May temperatures in Miller?

In Miller, in May, the average high-temperature is 67.5°F (19.7°C), and the average low-temperature is 51.4°F (10.8°C).

What is the average humidity in May in Miller?

The average relative humidity in May in Miller, Iowa, is 72%.

How many days does it rain in May in Miller?

In May, in Miller, Iowa, the rain falls for 18.3 days. Throughout May, 3.15" (80mm) of precipitation is accumulated.

What is the last month it snows in Miller?

May is the last month it regularly snows. During 0.3 snowfall days, in May, Miller aggregates 0.43" (11mm) of snow.

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

In May, the average day length in Miller is 14h and 41min.

When is the sunrise / sunset in May in Miller?

In May, on the first day of the month, sunrise is at 6:06 am and sunset at 8:16 pm. On the last day of the month, in Miller, sunrise is at 5:37 am and sunset at 8:47 pm CDT.

How many hours of sunshine does Miller have in May?

The average sunshine duration in May in Miller, Iowa, is 8.5h.

How high is the UV index in May in Miller?

In Miller, Iowa, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe 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
Miller, IA

Average temperature in May - Miller, IA
  • Average high temperature in May: 67.5°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.1°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

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Average pressure in May
Miller, IA

Average pressure in May - Miller, 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
Miller, IA

Average wind speed in May - Miller, IA
  • Average wind speed in May: 9.5mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

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Average humidity in May
Miller, IA

Average humidity in May - Miller, IA
  • Average humidity in May: 72%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in May
Miller, IA

Average rainfall in May - Miller, IA
  • Average rainfall in May: 3.15"

The wettest month (with the highest rainfall) is June (4.21").
The driest month (with the least rainfall) is January (0.98").

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Average rainfall days in May
Miller, IA

Average rainfall days in May - Miller, IA
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3 days).

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Average snowfall in May
Miller, IA

Average snowfall in May - Miller, IA
  • Average snowfall in May: 0.43"

The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Miller, IA

Average snowfall days in May - Miller, IA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (13.3 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
Miller, IA

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in May: 8h and 3min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in May
Miller, IA

Average sunshine days in May - Miller, IA
  • Average sunshine days in May: 10.8 days

The months with the most sunshine days are October and November (17.4 days).
The month with the least sunshine days is June (9.2 days).

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Average UV index in May
Miller, IA

Average UV index in May - Miller, 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
Miller, IA

Average cloud cover in May - Miller, IA
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in May
Miller, IA

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

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

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Miller, Iowa, USA

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