Rialto, us-California State, USA Weather Information
Local Time
2026-03-12 13:43:50 Pacific Standard TimeWeather in the past year
Sun & Astronomy
In Rialto, us-California State, USA, today's sunrise time is 07:00, sunset time is 18:56, nautical twilight begins at 06:08, nautical twilight ends at 19:49, astronomical twilight begins at 05:38, astronomical twilight ends at 20:18.
Temperature Analysis
In Rialto, us-California State, USA region, the lowest temperature occurs in January 2025, with an average temperature of about 12°C.
The highest temperature occurs in August 2025, with a maximum temperature of up to 27.9°C.
Based on historical data, the average temperature in January is 12°C, February is 13.6°C, March is 12.1°C, April is 15.9°C, May is 19.9°C, June is 23.7°C, July is 24.9°C, August is 27.9°C, September is 24.7°C, October is 19.3°C, November is 16.2°C, December is 15.2°C.
Wind Analysis
In Rialto, us-California State, USA region, the lowest wind speed occurs in November 2025, with an average wind speed of about 28.5 km/h.
The highest wind speed occurs in January 2025, with a maximum wind speed of up to 44.5 km/h.
Based on historical data, the average wind speed in January is 44.5 km/h, February is 30.6 km/h, March is 31.3 km/h, April is 37.6 km/h, May is 39.1 km/h, June is 38.1 km/h, July is 39.1 km/h, August is 38.3 km/h, September is 34.3 km/h, October is 30.3 km/h, November is 28.5 km/h, December is 30.3 km/h.
Sunshine Duration Analysis
In Rialto, us-California State, USA region, the lowest sunshine duration occurs in November 2025, with an average sunshine duration of about 7.8 hours.
The highest sunshine duration occurs in June 2025, with a maximum sunshine duration of up to 13.3 hours.
Based on historical data, the average sunshine duration in January is 9 hours, February is 8.5 hours, March is 9.3 hours, April is 11.3 hours, May is 12 hours, June is 13.3 hours, July is 13.2 hours, August is 12 hours, September is 11 hours, October is 10.1 hours, November is 7.8 hours, December is 7.9 hours.
Precipitation Analysis
In Rialto, us-California State, USA region, the lowest precipitation occurs in June 2025, with an average precipitation of about 0 mm.
The highest precipitation occurs in November 2025, with a maximum precipitation of up to 5.5 mm.
Based on historical data, the average precipitation in January is 0.8 mm, February is 4.8 mm, March is 4.1 mm, April is 0.7 mm, May is 0.3 mm, June is 0 mm, July is 0 mm, August is 0 mm, September is 0.6 mm, October is 1.3 mm, November is 5.5 mm, December is 3.3 mm.