Lafayette, CA Weather & Climate Normals
What a normal year in Lafayette actually looks like
On the 30-year record NOAA keeps for Lafayette, CA, the comfort score comes out to 77/100, mild with real seasons: A solid stretch of comfortable months alongside a noticeable but not extreme summer or winter. Only 9 months a year land in the 55–75°F range this site treats as mild.
How much Lafayette's weather actually swings
Average temperatures in Lafayette run from 50°F in Dec up to 74°F in Aug, a 23.5°F seasonal swing, a middling gap by national standards.
Lafayette, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 58°F | 42°F | 3.46in | 0in |
| Feb | 63°F | 44°F | 3.57in | 0in |
| Mar | 68°F | 47°F | 2.57in | 0in |
| Apr | 72°F | 49°F | 1.23in | 0in |
| May | 78°F | 53°F | 0.61in | 0in |
| Jun | 85°F | 57°F | 0.12in | 0in |
| Jul | 88°F | 58°F | 0in | 0in |
| Aug | 88°F | 59°F | 0.02in | 0in |
| Sep | 86°F | 58°F | 0.06in | 0in |
| Oct | 78°F | 53°F | 0.68in | 0in |
| Nov | 67°F | 46°F | 1.87in | 0in |
| Dec | 59°F | 41°F | 3.55in | 0in |
If you're timing a visit, most of the year (9 of 12 months) are Lafayette's mildest stretch; if you're moving there, you should plan around Dec's cold instead.
How wet Lafayette actually gets
Over a typical year, Lafayette sees about 17.74in of precipitation a year across roughly 56 days with measurable rain or snow, with 0in of snow a year.
Lafayette against the rest of the country
Out of 4876 cities scored here, Lafayette comes in at 183; within CA alone it ranks 183 of 429. Population is about 25,371.
Checking the actual forecast
These figures come from Concord Wwtp, CA US, the NOAA station 6.9 miles from Lafayette, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated