Rancho Santa Margarita, CA Weather & Climate Normals
Rancho Santa Margarita's real weather, in one number
Rancho Santa Margarita, CA scores 87/100 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. 11 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Rancho Santa Margarita's hottest and coldest months
Rancho Santa Margarita's hottest month is Aug, averaging 75°F; its coldest is Jan, averaging 56°F, a 19.6°F swing across the year, one of the smaller gaps in this dataset.
Rain and snow in Rancho Santa Margarita
Rancho Santa Margarita averages 14.12in of precipitation a year across roughly 32 days with measurable rain or snow, and 0in of snow a year.
Where Rancho Santa Margarita ranks
Rancho Santa Margarita ranks 84 of 4876 US cities in this dataset for comfort score, and 84 of 429 within CA. About 46,353 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from TUSTIN IRVINE RCH, CA US, 10.1 miles from Rancho Santa Margarita, not a prediction for any specific day.
More on how this is worked out
What a 30-year climate normal actually is · Why this uses the nearest NOAA station