July weather forecast
Guernsey, IA

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Weather in July

July, the same as June, is a moderately hot summer month in Guernsey, Iowa, with an average temperature ranging between min 64.8°F (18.2°C) and max 81.1°F (27.3°C).

Temperature

July, with average temperatures reaching a high of 81.1°F (27.3°C) and a low of 64.8°F (18.2°C), is the warmest month.

Heat index

The average heat index in July is estimated at a tropical 87.8°F (31°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.
Observations indicate that the heat index values are for shady locations with light wind. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

January and July, with an average relative humidity of 84%, are the most humid months in Guernsey.

Rainfall

In July, in Guernsey, the rain falls for 16.8 days. Throughout July, 3.11" (79mm) of precipitation is accumulated. Throughout the year, there are 145.5 rainfall days, and 30.39" (772mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Guernsey, Iowa.

Daylight

The average length of the day in July is 14h and 50min.
On the first day of July in Guernsey, Iowa, sunrise is at 5:39 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:27 pm CDT.

Sunshine

With an average of 10.1h of sunshine, July has the most sunshine of the year.

UV index

The months with the highest UV index in Guernsey are June and July, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability 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:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
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Frequently asked questions

What part of the year is the hottest in Guernsey?

The warmest period in Guernsey tends to be July, when average temperatures fluctuate between a high of 81.1°F (27.3°C) and a low of 64.8°F (18.2°C).

What is the temperature in July in Guernsey?

Guernsey in July has an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 64.8°F (18.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the most humid month in Guernsey?

The months with the highest humidity are January and July, with an average relative humidity of 84%.

What is the average humidity in July in Guernsey?

In Guernsey, Iowa, the average relative humidity in July is 84%.

How many days does it rain in July in Guernsey?

In July, in Guernsey, the rain falls for 16.8 days. Throughout July, 3.11" (79mm) of precipitation is accumulated.

When it does not snow in Guernsey?

In Guernsey, snow does not fall in June through September.

What is the average length of the day in July in Guernsey?

In July, the average day length in Guernsey, Iowa, is 14h and 50min.

When is the sunrise / sunset in July in Guernsey?

In July, on the first day of the month, sunrise is at 5:39 am and sunset at 8:47 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:27 pm CDT.

What month has the most sunshine in Guernsey?

July has the most sunshine of the year, with an average of 10.1h of sunshine.

How long on average sun shines in July in Guernsey?

In July, the average sunshine duration in Guernsey is 10.1h.

When is the highest UV index in Guernsey?

June and July, with an average maximum UV index of 6, are months with the highest UV index in Guernsey.

What is the UV index reading in July in Guernsey?

In Guernsey, the average daily maximum UV index in July is 6. A UV Index estimate of 6 to 7 represents a high health threat 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 July
Guernsey, IA

Average temperature in July - Guernsey, IA
  • Average high temperature in July: 81.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.1°F).

  • Average low temperature in July: 64.8°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).

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Average pressure in July
Guernsey, IA

Average pressure in July - Guernsey, IA
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in July
Guernsey, IA

Average wind speed in July - Guernsey, IA
  • Average wind speed in July: 7mph

The windiest months (with the highest average wind speed) are January and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in July
Guernsey, IA

Average humidity in July - Guernsey, IA
  • Average humidity in July: 84%

The months with the highest relative humidity are January and July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in July
Guernsey, IA

Average rainfall in July - Guernsey, IA
  • Average rainfall in July: 3.11"

The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in July
Guernsey, IA

Average rainfall days in July - Guernsey, IA
  • Average rainfall days in July: 16.8 days

The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is February (5 days).

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Average snowfall in July
Guernsey, IA

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

The month with the highest snowfall is February (5.24").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Guernsey, IA

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

The month with the highest number of snowfall days is January (10.6 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
Guernsey, IA

Average daylight in July / Average sunshine in July - Guernsey, IA
  • Average daylight in July: 14h and 5min

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 12min).

  • Average sunshine in July: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in July
Guernsey, IA

Average sunshine days in July - Guernsey, IA
  • Average sunshine days in July: 9.8 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (8.3 days).

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Average UV index in July
Guernsey, IA

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

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 July
Guernsey, IA

Average cloud cover in July - Guernsey, IA
  • Average cloud cover in July: 32

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in July
Guernsey, IA

Average visibility in July - Guernsey, IA
  • Average visibility in July: 5mi

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

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Guernsey, Iowa, USA

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