May weather forecast
Jackson Junction, IA

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Weather in May

May, the last month of the spring in Jackson Junction, is a refreshing month, with an average temperature varying between 49.8°F (9.9°C) and 66.6°F (19.2°C).

Temperature

May's onset is marked by a temperature increase, moving from a fresh 54.5°F (12.5°C) in April to a refreshing 66.6°F (19.2°C). Jackson Junction experiences a consistent average temperature of 49.8°F (9.9°C) throughout the nights in May.

Humidity

In Jackson Junction, the average relative humidity in May is 80%.

Rainfall

In Jackson Junction, in May, during 19.8 rainfall days, 4.37" (111mm) of precipitation is typically accumulated. In Jackson Junction, Iowa, during the entire year, the rain falls for 146.5 days and collects up to 31.3" (795mm) of precipitation.

Snowfall

Months with snowfall in Jackson Junction, Iowa, are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Jackson Junction aggregates 0.2" (5mm) of snow. In Jackson Junction, Iowa, during the entire year, snow falls for 59.9 days and aggregates up to 24.84" (631mm) of snow.

Daylight

The average length of the day in May is 14h and 41min.
On the first day of the month, sunrise is at 6:00 am and sunset at 8:09 pm. On the last day of May, sunrise is at 5:31 am and sunset at 8:40 pm CDT.

Sunshine

The average sunshine in May is 8.1h.

UV index

The months with the highest UV index in Jackson Junction are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 5 in May interprets into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
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Frequently asked questions

What is the average May temperature in Jackson Junction?

May temperatures in Jackson Junction vary between a high-temperature of 66.6°F (19.2°C) and a low-temperature of 49.8°F (9.9°C).

What is the average humidity in May in Jackson Junction?

In Jackson Junction, Iowa, the average relative humidity in May is 80%.

How much does it rain in Jackson Junction in May?

In Jackson Junction, during May, the rain falls for 19.8 days and regularly aggregates up to 4.37" (111mm) of precipitation.

What is the last month it snows in Jackson Junction?

May is the last month it regularly snows in Jackson Junction. During 0.3 snowfall days, in May, Jackson Junction aggregates 0.2" (5mm) of snow.

What is the average length of the day in May in Jackson Junction?

In May, the average day length in Jackson Junction, Iowa, is 14h and 41min.

When is the sunrise / sunset in May in Jackson Junction?

In May, on the first day of the month, sunrise is at 6:00 am and sunset at 8:09 pm. On the last day of the month, in Jackson Junction, sunrise is at 5:31 am and sunset at 8:40 pm CDT.

How many hours of sunshine does Jackson Junction have in May?

The average sunshine duration in May is 8.1h.

When is the highest UV index in Jackson Junction?

The months with the highest UV index in Jackson Junction, Iowa, are May through August, with an average maximum UV index of 5.

What is the UV index intensity in May in Jackson Junction?

The average daily maximum UV index in May in Jackson Junction, Iowa, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat 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
Jackson Junction, IA

Average temperature in May - Jackson Junction, IA
  • Average high temperature in May: 66.6°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in May: 49.8°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

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Average pressure in May
Jackson Junction, IA

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

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Average wind speed in May
Jackson Junction, IA

Average wind speed in May - Jackson Junction, IA
  • Average wind speed in May: 9.3mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in May
Jackson Junction, IA

Average humidity in May - Jackson Junction, IA
  • Average humidity in May: 80%

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (75%).

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Average rainfall in May
Jackson Junction, IA

Average rainfall in May - Jackson Junction, IA
  • Average rainfall in May: 4.37"

The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in May
Jackson Junction, IA

Average rainfall days in May - Jackson Junction, IA
  • Average rainfall days in May: 19.8 days

The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in May
Jackson Junction, IA

Average snowfall in May - Jackson Junction, IA
  • Average snowfall in May: 0.2"

The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Jackson Junction, IA

Average snowfall days in May - Jackson Junction, IA
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (14.5 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
Jackson Junction, IA

Average daylight in May / Average sunshine in May - Jackson Junction, 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 6min).

  • Average sunshine in May: 8h and 1min

The month with the most sunshine is August (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
Jackson Junction, IA

Average sunshine days in May - Jackson Junction, IA
  • Average sunshine days in May: 9 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.9 days).

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Average UV index in May
Jackson Junction, IA

Average UV index in May - Jackson Junction, IA
  • Average UV index in May: 5

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in May
Jackson Junction, IA

Average cloud cover in May - Jackson Junction, IA
  • Average cloud cover in May: 45

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
Jackson Junction, IA

Average visibility in May - Jackson Junction, IA
  • Average visibility in May: 6mi

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

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Jackson Junction, Iowa, USA

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