May weather forecast
Mystic, IA

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Weather in May

The last month of the spring, May, is a pleasant month in Mystic, Iowa, with an average temperature ranging between min 53.1°F (11.7°C) and max 69.4°F (20.8°C).

Temperature

With the onset of May, Mystic's average high-temperature experiences a rise, moving from April's moderate 60.4°F (15.8°C) to an agreeable 69.4°F (20.8°C). Mystic experiences an average temperature drop to a fresh 53.1°F (11.7°C) during May nights.

Humidity

In Mystic, the average relative humidity in May is 81%.

Rainfall

In Mystic, Iowa, in May, it is raining for 18.2 days, with typically 3.39" (86mm) of accumulated precipitation. In Mystic, during the entire year, the rain falls for 143.2 days and collects up to 27.48" (698mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. May is the last month it regularly snows in Mystic, Iowa. During 0.2 snowfall days, in May, Mystic aggregates 0.2" (5mm) of snow. Throughout the year, there are 33.2 snowfall days, and 15.31" (389mm) of snow is accumulated.

Daylight

In May, the average length of the day in Mystic is 14h and 29min.
On the first day of May, sunrise is at 6:09 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:36 pm CDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

In May, the average daily maximum UV index in Mystic is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Take precautions - Protection against skin and eye damage is obliged. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What are the temperatures in Mystic in May?

Mystic in May has an average high-temperature of 69.4°F (20.8°C) and an average low-temperature of 53.1°F (11.7°C).

What is the average humidity in May in Mystic?

In May, the average relative humidity in Mystic is 81%.

How much does it rain in Mystic in May?

In Mystic, Iowa, in May, during 18.2 rainfall days, 3.39" (86mm) of precipitation is typically accumulated.

What is the last month it snows in Mystic?

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

How many hours of daylight does Mystic have in May?

The average day length in May in Mystic is 14h and 29min.

When are sunrise and sunset in May in Mystic?

In May, on the first day of the month, sunrise is at 6:09 am and sunset at 8:08 pm. On the last day of the month, in Mystic, Iowa, sunrise is at 5:42 am and sunset at 8:36 pm CDT.

How long on average sun shines in May in Mystic?

In May, the average sunshine duration in Mystic, Iowa, is 8.6h.

What is the UV index reading in May in Mystic?

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

Average temperature in May - Mystic, IA
  • Average high temperature in May: 69.4°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in May: 53.1°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure in May
Mystic, IA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in May
Mystic, IA

Average wind speed in May - Mystic, IA
  • Average wind speed in May: 8.8mph

The windiest months (with the highest average wind speed) are January, February and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in May
Mystic, IA

Average humidity in May - Mystic, IA
  • Average humidity in May: 81%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in May
Mystic, IA

Average rainfall in May - Mystic, IA
  • Average rainfall in May: 3.39"

The wettest month (with the highest rainfall) is June (3.98").
The driest month (with the least rainfall) is January (1.02").

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Average rainfall days in May
Mystic, IA

Average rainfall days in May - Mystic, 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 (5 days).

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Average snowfall in May
Mystic, IA

Average snowfall in May - Mystic, IA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is January (4.33").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Mystic, IA

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

The month with the highest number of snowfall days is January (9.4 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
Mystic, IA

Average daylight in May / Average sunshine in May - Mystic, 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 18min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

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Average sunshine days in May
Mystic, IA

Average sunshine days in May - Mystic, IA
  • Average sunshine days in May: 10.4 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.8 days).

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Average UV index in May
Mystic, IA

Average UV index in May - Mystic, 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
Mystic, IA

Average cloud cover in May - Mystic, IA
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July, August and September (Cloud cover 29).

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Average visibility in May
Mystic, IA

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

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

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Mystic, Iowa, USA

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