Rancho Cucamonga is a city influenced by an inland desert climate, resulting in higher temperatures and drier air compared to coastal areas.

Because of this characteristic, it doesn't just get hot; it also increases the presence of allergens and respiratory irritants.

The most common allergenic plants are various pollens released when the Santa Ana winds blow.

This wind is dry and strong, dispersing dust and pollen into the air, which triggers allergic reactions over a much wider area than usual.

In spring (February to May), pollen from trees and grasses is abundant in the air, while in fall, weed pollen (especially ragweed) worsens allergy symptoms.

For those experiencing allergy symptoms like sneezing, runny nose, and itchy eyes, it is advisable to check the pollen count forecast from the weather service and adjust outdoor activities accordingly.

Antihistamines (such as Claritin and Zyrtec) are available over the counter at CVS, Walgreens, and other pharmacies.

There are also precautions regarding bugs. The Brown Recluse Spider is more common in the central and southern United States than in California, but the Black Widow Spider can be found throughout California, including Rancho Cucamonga.

They tend to inhabit dark areas like warehouses, under pots, and outdoor wood piles, so it is recommended to wear thick gloves when cleaning outdoors or organizing storage areas.

Scorpions are also occasionally found in the dry Inland Empire region.

They are primarily active at night and may hide in shoes or clothing, so it is a good habit to shake out shoes left outside before wearing them.

While a scorpion sting can be very painful, it is usually not life-threatening to healthy adults. However, children or those with allergies should seek emergency care immediately.

Coyotes have been spotted near the northern mountainous areas and new developments of Rancho Cucamonga.

They are particularly active in the early morning and evening and can pose a threat to small pets. It is important not to leave pets outside unattended or let them out without a leash.

Valley Fever, which gained global attention after the coronavirus pandemic, is caused by inhaling a fungus (Coccidioides immitis) that thrives in dry soil.

The Inland Empire and Central Valley regions are included in the risk areas, and those who work in construction or are frequently exposed to dusty environments should wear masks. Most cases are asymptomatic or present flu-like symptoms and recover naturally, but those with weakened immune systems should be cautious as it can become serious.