July weather forecast
Griffen, IA

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Weather in July

July, the same as June, is another warm summer month in Griffen, Iowa, with an average temperature varying between 64.4°F (18°C) and 81.3°F (27.4°C).

Temperature

Griffen experiences its highest average temperatures in July, reaching a peak of 81.3°F (27.4°C) and a minimum of 64.4°F (18°C).

Heat index

The heat index in July is computed to be a hot 87.8°F (31°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In Griffen, the average relative humidity in July is 82%.

Rainfall

In Griffen, during July, the rain falls for 15 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 123.3 rainfall days, and 20.98" (533mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Griffen, the average length of the day in July is 14h and 54min.
On the first day of July, sunrise is at 5:43 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:35 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 Griffen are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum high daily UV index of 6 during July translates into the following directions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.

Frequently asked questions

What time of the year is the hottest?

July registers as the month with the average highest temperatures, reaching 81.3°F (27.4°C) at its peak and 64.4°F (18°C) at the lowest.

What are the temperatures in July?

In July, in Griffen, the average high-temperature is 81.3°F (27.4°C), and the average low-temperature is 64.4°F (18°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in July is computed to be 87.8°F (31°C).

What is the average humidity in July in Griffen?

In July, the average relative humidity is 82%.

How many days does it rain in July?

In July, the rain falls for 15 days. Throughout July, 1.97" (50mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Griffen have in July?

In Griffen, the average day length in July is 14h and 54min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:43 am and sunset at 8:55 pm. On the last day of the month, in Griffen, sunrise is at 6:08 am and sunset at 8:35 pm CDT.

What month has the most sunshine?

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

How long on average sun shines in July?

In July, the average sunshine duration is 10.1h.

What is the month with the highest UV index?

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

How high is the UV index in July?

The average daily maximum UV index in July in Griffen is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Griffen, IA

Average temperature in July - Griffen, IA
  • Average high temperature in July: 81.3°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (26.4°F).

  • Average low temperature in July: 64.4°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

Average pressure in July
Griffen, IA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in July
Griffen, IA

Average wind speed in July - Griffen, IA
  • Average wind speed in July: 7.1mph

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).

Average humidity in July
Griffen, IA

Average humidity in July - Griffen, IA
  • Average humidity in July: 82%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).

Average rainfall in July
Griffen, IA

Average rainfall in July - Griffen, IA
  • Average rainfall in July: 1.97"

The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in July
Griffen, IA

Average rainfall days in July - Griffen, IA
  • Average rainfall days in July: 15 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.2 days).

Average snowfall in July
Griffen, IA

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

The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Griffen, IA

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

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 12min).
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 0min).

Average sunshine days in July
Griffen, IA

Average sunshine days in July - Griffen, IA
  • Average sunshine days in July: 12.3 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in July
Griffen, IA

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

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

Average cloud cover in July
Griffen, IA

Average cloud cover in July - Griffen, IA
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in July
Griffen, IA

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

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

Griffen, Iowa, USA

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