Historical Weather Records & Monthly Climate for Diamond Bar, CA
All-Time High
121°F
All-Time Low
20°F
Max Daily Snow
3"
Max Daily Rain
3.46"
Max Snow Depth
0
Monthly Climate Averages for Diamond Bar, CA
Based on 30 years of historical data (1994 - 2023)
| Month | High (°F) | Low (°F) | Precip (in) | Snow (in) |
|---|---|---|---|---|
| January | 64° | 43° | 3.34" | 0.01" |
| February | 64° | 44° | 3.4" | 0.16" |
| March | 68° | 47° | 2.33" | 0.02" |
| April | 72° | 50° | 1.05" | 0.01" |
| May | 75° | 55° | 0.47" | 0 |
| June | 82° | 59° | 0.09" | 0 |
| July | 88° | 64° | 0.08" | 0 |
| August | 90° | 65° | 0.16" | 0 |
| September | 87° | 63° | 0.33" | 0 |
| October | 79° | 57° | 0.75" | 0 |
| November | 71° | 49° | 1.12" | 0 |
| December | 63° | 43° | 2.65" | 0.03" |
More Historical Climate Data for Cities in
CA