Hayward, CA Weather & Climate Normals
Hayward's real weather, in one number
Hayward, CA scores 79/100 on this site's reading of NOAA's own 30-year normals: mild with real seasons. A solid stretch of comfortable months alongside a noticeable but not extreme summer or winter. 9 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Hayward's hottest and coldest months
Hayward's hottest month is Aug, averaging 67°F; its coldest is Jan, averaging 51°F, a 16.1°F swing across the year, one of the smaller gaps in this dataset.
Rain and snow in Hayward
Over a typical year, Hayward sees about 16in of precipitation a year across roughly 59 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Hayward ranks
Hayward ranks 134 of 4876 US cities in this dataset for comfort score, and 134 of 429 within CA. About 158,440 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from HAYWARD AIR TERMINAL, CA US, 2.0 miles from Hayward, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · How the comfort score is calculated