Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
During July and August, Alton registers its highest temperatures, averaging a high of 91.2°F (32.9°C).Heat index
July's average heat index is evaluated at a blazing hot 114.8°F (46°C). Precaution: Heat cramps along with heat exhaustion are possible. Heatstroke is a serious risk with continued exertion.Metrics for the heat index primarily focus on shaded spots and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
In July, the average relative humidity in Alton is 76%.Rainfall
In Alton, in July, during 23.2 rainfall days, 4.33" (110mm) of precipitation is typically accumulated. In Alton, during the entire year, the rain falls for 173.6 days and collects up to 31.3" (795mm) of precipitation.Snowfall
In Alton, snow does not fall in January, March through December.Daylight
The average length of the day in July in Alton, Florida, is 13h and 52min.On the first day of July in Alton, sunrise is at 6:35 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 8:26 pm EDT.
Sunshine
July has the most sunshine of the year, with an average of 10.7h of sunshine.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: In July, a daily maximum UV index of 7 leads to the following instructions:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What part of the year is the hottest in Alton?
How hot does it get in Alton in July?
What is the average humidity in July in Alton?
How many days does it rain in July in Alton?
When it does not snow in Alton?
What is the average length of the day in July in Alton?
What time are sunrise and sunset in July in Alton?
What month has the most sunshine in Alton?
How long on average sun shines in July in Alton?
What is the month with the highest UV index in Alton?
How high is the UV index in July in Alton?
Average temperature in July
Alton, FL
- Average high temperature in July: 91.2°F
The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in July: 74.3°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in July
Alton, FL
- Average pressure in July: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in July
Alton, FL
- Average wind speed in July: 4.8mph
The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in July
Alton, FL
- Average humidity in July: 76%
The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is May (70%).
Average rainfall in July
Alton, FL
- Average rainfall in July: 4.33"
The wettest month (with the highest rainfall) is August (4.57").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in July
Alton, FL
- Average rainfall days in July: 23.2 days
The month with the highest number of rainy days is August (25.5 days).
The month with the least rainy days is November (7.2 days).
Average snowfall days in July
Alton, FL
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in July /
Average sunshine in July
Alton, FL
- Average daylight in July: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in July: 10h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in July
Alton, FL
- Average sunshine days in July: 5.9 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is August (4.3 days).
Average UV index in July
Alton, FL
- Average UV index in July: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in July
Alton, FL
- Average cloud cover in July: 32
The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in July
Alton, FL
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
Alton, Florida, USA
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