Fontana weather by month
Discover the ins and outs of Fontana’s climate—average highs, lows, precipitation, and how the seasons shape daily life in this Southern California city.
Overview of Fontana’s Climate
Fontana experiences a typical Southern California Mediterranean climate: hot, dry summers; mild, comfortably warm winters; and a distinct wet season that lasts only a few months. Understanding the monthly patterns helps residents, business owners, and tourists plan activities, manage energy bills, and stay comfortable year‑round.
Fontana Weather by Month
| Month | Avg. High (°F) | Avg. Low (°F) | Avg. Precipitation (in) | Avg. Sunshine Hours |
|---|---|---|---|---|
| January | 58 | 39 | 0.7 | 6.5 |
| February | 61 | 40 | 0.5 | 6.8 |
| March | 66 | 43 | 0.4 | 7.2 |
| April | 71 | 46 | 0.4 | 7.9 |
| May | 77 | 50 | 0.3 | 8.5 |
| June | 87 | 57 | 0.1 | 9.0 |
| July | 95 | 64 | 0.0 | 9.5 |
| August | 95 | 64 | 0.0 | 9.3 |
| September | 90 | 60 | 0.0 | 9.0 |
| October | 80 | 52 | 0.2 | 8.0 |
| November | 68 | 44 | 0.5 | 7.0 |
| December | 59 | 38 | 0.6 | 6.4 |
Sources: National Weather Service & California Climate Office
Monthly Highlights
- January–March: The city sees its wettest weather, with occasional fog and slightly cooler temperatures. Spring storms bring brief, intense showers.
- April–June: Gradual warming leads to comfortable dry weather. June marks the start of the intense heat that lasts through August.
- July–September: Peak temperatures; minimal rainfall. High UV index means sunscreen and hydration are essential.
- October–December: Cooler evenings, more stable temperatures, and a short return of winter precipitation.
Seasonal Tips for Residents and Visitors
-
Summer
- Stay Hydrated: Aim for 3–4 liters of water a day.
- Sun Protection: Use SPF 50 sunscreen, wide‑brim hats, and UV‑blocking sunglasses.
- Ventilate Smartly: Use fans or AC during peak temperatures (mid‑June to mid‑July).
-
Fall
- Monitor Drought Alerts: Local authorities may issue water‑use restrictions.
- Fire Safety: Low humidity can still foster wildfires; keep fire‑break areas clear.
-
Winter
- Occasional Snow & Ice: Although rare, check weather alerts early.
- Heating System Check: Ensure furnaces are serviced before the coldest months.
- Spring
- Allergy Preparedness: Pollen counts rise; carry antihistamines.
- Storm Safety: Secure outdoor furniture; monitor weather updates.
FAQs – Quick Answers About Fontana Weather
Q1: When is the best time to visit Fontana for outdoor activities?
A1: Late spring (April–May) and early fall (September–October) offer mild temperatures and low precipitation—ideal for hiking, biking, and cultural events.
Q2: Does Fontana experience hurricanes or tropical storms?
A2: No; its mild, Mediterranean climate is far removed from tropical cyclone paths.
Q3: What’s the average UV index in summer?
A3: It often peaks between 10–12, the highest categories, demanding diligent sun protection.
Q4: Are there significant wind gusts in the city?
A4: The city sees occasional Santa Ana winds during late summer; temperatures can rise swiftly, and caution is advised.
Q5: How do local businesses adjust to Fontana’s dry summer weather?
A5: Many shift to cooler times of day for outdoor operations, employ efficient cooling systems, and participate in water‑saving initiatives.
Resources
- California Department of Water Resources – Water Information
- National Weather Service – Fontana Local Forecasts – NWS Fontana
- City of Fontana Official Website – Climate and Environmental Services – Fontana Climate
- American Meteorological Society – Climate Basics – AMS Climate
- Sun Protection Guide – Skin Cancer Foundation – UV Index
Feel confident navigating Fontana’s weather. Whether you’re a year‑round resident or planning a seasonal visit, this guide has you covered with detailed monthly data, practical tips, and reliable resources. Enjoy the sunshine—responsibly.
