Aliso Viejo, CA Weather & Climate Normals
Aliso Viejo's real weather, in one number
Aliso Viejo, CA scores 93/100 on this site's reading of NOAA's own 30-year normals: very mild year-round. Many months fall in a comfortable temperature range with limited snow or seasonal extremes. 12 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Aliso Viejo's hottest and coldest months
Aliso Viejo's hottest month is Aug, averaging 71°F; its coldest is Dec, averaging 56°F, a 15.6°F swing across the year, one of the smaller gaps in this dataset.
Rain and snow in Aliso Viejo
Aliso Viejo averages 12.68in of precipitation a year across roughly 31 days with measurable rain or snow, and 0in of snow a year.
Where Aliso Viejo ranks
Aliso Viejo ranks 58 of 4876 US cities in this dataset for comfort score, and 58 of 429 within CA. About 50,457 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from LAGUNA BEACH, CA US, 3.8 miles from Aliso Viejo, not a prediction for any specific day.
More on how this is worked out
How the comfort score is calculated · Why some cities show no snow or rain figure