August weather forecast
Pleasant Grove, CA

The last month of the summer, August, is another hot month in Pleasant Grove, California, with an average temperature ranging between max 94.1°F (34.5°C) and min 60.1°F (15.6°C).

Temperature

Pleasant Grove records an average high-temperature of a still tropical 94.1°F (34.5°C) in August, maintaining a close correlation with July's 94.8°F (34.9°C). Pleasant Grove's nighttime average of 60.1°F (15.6°C) during August reflects a substantial decrease from the daytime temperature.

Heat index

Throughout August, the heat index is estimated at a sweltering 100.4°F (38°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in August is 46%.

Rainfall

The months with the least rainfall in Pleasant Grove, California, are July and August Rain falls for 1.3 days and accumulates 0.04" (1mm) of rain.

Daylight

In August, the average length of the day in Pleasant Grove is 13h and 38min.
On the first day of the month, sunrise is at 6:07 am and sunset at 8:16 pm. On the last day of August, sunrise is at 6:34 am and sunset at 7:37 pm PDT.

Sunshine

In August, the average sunshine in Pleasant Grove is 12h.

UV index

The average daily maximum UV index in August is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.