| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.84 | -0.09 |
| Feb | 0.78 | 0.86 | -0.08 |
| Mar | 1.55 | 1.54 | 0.01 |
| Apr | 2.97 | 2.92 | 0.05 |
| May | 4.22 | 4.25 | -0.03 |
| Jun | 4.91 | 4.53 | 0.38 |
| Jul | 4.04 | 3.98 | 0.06 |
| Aug | 4.25 | 4.43 | -0.18 |
| Sep | 3.38 | 3.21 | 0.17 |
| Oct | 2.54 | 2.51 | 0.03 |
| Nov | 1.51 | 1.54 | -0.03 |
| Dec | 1.09 | 1.19 | -0.10 |
31.99 | 31.80 | 0.19 |