| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.71 | 0.04 |
| Feb | 0.81 | 0.87 | -0.06 |
| Mar | 1.45 | 1.49 | -0.04 |
| Apr | 2.64 | 2.62 | 0.02 |
| May | 3.91 | 3.72 | 0.19 |
| Jun | 4.39 | 4.31 | 0.08 |
| Jul | 4.32 | 4.53 | -0.21 |
| Aug | 4.05 | 4.04 | 0.01 |
| Sep | 3.27 | 3.20 | 0.07 |
| Oct | 2.86 | 2.93 | -0.07 |
| Nov | 1.60 | 1.57 | 0.03 |
| Dec | 1.05 | 1.14 | -0.09 |
31.10 | 31.13 | -0.03 |