July weather forecast
Siam, IA

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Weather in July

July, like June, in Siam, Iowa, is another warm summer month, with an average temperature fluctuating between 66.6°F (19.2°C) and 83.8°F (28.8°C).

Temperature

July, known for its average high temperature of 83.8°F (28.8°C) and an average low temperature of 66.6°F (19.2°C), is the warmest month.

Heat index

The heat index value during July is appraised at a hot 93.2°F (34°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The average relative humidity in July is 79%.

Rainfall

In Siam, Iowa, in July, it is raining for 13.3 days, with typically 2.17" (55mm) of accumulated precipitation. In Siam, during the entire year, the rain falls for 114.9 days and collects up to 18.39" (467mm) of precipitation.

Snowfall

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

Daylight

In Siam, Iowa, the average length of the day in July is 14h and 44min.
On the first day of July in Siam, sunrise is at 5:52 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:35 pm CDT.

Sunshine

With an average of 10.4h of sunshine, July has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
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Frequently asked questions

What time of the year is the hottest in Siam?

July is the warmest month of the year in Siam, registering average temperatures as high as 83.8°F (28.8°C) and as low as 66.6°F (19.2°C).

Is it hot in Siam during July?

The high-temperature during July is 83.8°F (28.8°C) and the low-temperature is 66.6°F (19.2°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in July is appraised at 93.2°F (34°C).

What is the average humidity in July in Siam?

In Siam, Iowa, the average relative humidity in July is 79%.

How many days does it rain in July in Siam?

In Siam, Iowa, during July, the rain falls for 13.3 days and regularly aggregates up to 2.17" (55mm) of precipitation.

When it does not snow in Siam?

May through September are months without snowfall.

How many hours of daylight does Siam have in July?

In July, the average day length is 14h and 44min.

When are sunrise and sunset in July in Siam?

On the first day of July in Siam, Iowa, sunrise is at 5:52 am and sunset at 8:54 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:35 pm CDT.

What month has the most sunshine in Siam?

The month with the most sunshine is July, with an average of 10.4h of sunshine.

How long on average sun shines in July in Siam?

The average sunshine duration in July in Siam, Iowa, is 10.4h.

What are the months with the highest UV index in Siam?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in July in Siam?

The average daily maximum UV index in July in Siam is 6. A UV Index of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
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 July
Siam, IA

Average temperature in July - Siam, IA
  • Average high temperature in July: 83.8°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in July: 66.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).

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Average pressure in July
Siam, IA

Average pressure in July - Siam, IA
  • Average pressure in July: 29.95"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in July
Siam, IA

Average wind speed in July - Siam, IA
  • Average wind speed in July: 6.7mph

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in July
Siam, IA

Average humidity in July - Siam, IA
  • Average humidity in July: 79%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in July
Siam, IA

Average rainfall in July - Siam, IA
  • Average rainfall in July: 2.17"

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is February (0.43").

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Average rainfall days in July
Siam, IA

Average rainfall days in July - Siam, IA
  • Average rainfall days in July: 13.3 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in July
Siam, IA

Average snowfall in July - Siam, IA
  • Average snowfall in July: 0"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in July
Siam, IA

Average snowfall days in July - Siam, IA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Siam, IA

Average daylight in July / Average sunshine in July - Siam, IA
  • Average daylight in July: 14h and 4min

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

  • Average sunshine in July: 10h and 2min

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 36min).

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Average sunshine days in July
Siam, IA

Average sunshine days in July - Siam, IA
  • Average sunshine days in July: 14.2 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (12.3 days).

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Average UV index in July
Siam, IA

Average UV index in July - Siam, IA
  • Average UV index in July: 6

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in July
Siam, IA

Average cloud cover in July - Siam, IA
  • Average cloud cover in July: 27

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).

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Average visibility in July
Siam, IA

Average visibility in July - Siam, IA
  • Average visibility in July: 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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Siam, Iowa, USA

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