July weather forecastDiagonal, IA
July
Weather in July
July, like June, in Diagonal, Iowa, is a moderately hot summer month, with an average temperature varying between 83.5°F (28.6°C) and 66°F (18.9°C).Temperature
Diagonal's warmest month, July, generally records average temperatures ranging from a high of 83.5°F (28.6°C) to a low of 66°F (18.9°C).Heat index
For most parts of July, the heat index is appraised at a hot 93.2°F (34°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in July is 80%.Rainfall
In Diagonal, in July, during 15.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 126.9 rainfall days, and 22.6" (574mm) of precipitation is accumulated.Snowfall
In Diagonal, snow does not fall in June through September.Daylight
The average length of the day in July is 14h and 46min.On the first day of July, sunrise is at 5:50 am and sunset at 8:52 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:33 pm CDT.
Sunshine
With an average of 10.3h 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 estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: During July, 6 as the daily maximum UV index converts into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Diagonal, IA
- Average high temperature in July: 83.5°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in July: 66°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in July
Diagonal, 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
Diagonal, IA
- Average wind speed in July: 6.8mph
The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in July
Diagonal, IA
- Average humidity in July: 80%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in July
Diagonal, IA
- Average rainfall in July: 2.32"
The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are February and December (0.71").
Average rainfall days in July
Diagonal, IA
- Average rainfall days in July: 15.1 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in July
Diagonal, IA
- Average snowfall in July: 0"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in July
Diagonal, IA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Diagonal, IA
- Average daylight in July: 14h and 48min
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 July: 10h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in July
Diagonal, IA
- Average sunshine days in July: 11.5 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in July
Diagonal, IA
- Average UV index in July: 6
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in July
Diagonal, IA
- Average cloud cover in July: 28
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in July
Diagonal, 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).
