July weather forecast
Hannibal, MO

July represents the quintessential summer month in Hannibal, featuring sunny days, high temperatures, and less rainfall. Average temperatures peak, making it the hottest month of the year. In this month, the city sees long daylight hours, allowing for more outdoor activities and events. Significantly, July boasts the highest temperature peak of 84.7°F (29.3°C). The weather in July offers a chance to enjoy the iconic Mississippi riverfront and the charm of Hannibal's historical landmarks.

Temperature

July is the warmest month of the year, registering average temperatures as high as 84.7°F (29.3°C) and as low as 67.1°F (19.5°C).

Heat index

The heat index value during July is computed to be a fiery hot 96.8°F (36°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The months with the highest humidity in Hannibal are May through July, with an average relative humidity of 80%.

Rainfall

In Hannibal, in July, it is raining for 14.3 days, with typically 2.2" (56mm) of accumulated precipitation. In Hannibal, during the entire year, the rain falls for 136 days and collects up to 25" (635mm) of precipitation.

Snowfall

May through October are months without snowfall in Hannibal, Missouri.

Daylight

In Hannibal, the average length of the day in July is 14h and 39min.
On the first day of July, sunrise is at 5:41 am and sunset at 8:37 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:19 pm CDT.

Sunshine

The month with the most sunshine in Hannibal, Missouri, is July, with an average of 10.5h of sunshine.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index in Hannibal. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.