| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.45 | 1.36 | 0.09 |
| Feb | 1.55 | 1.64 | -0.09 |
| Mar | 2.76 | 2.72 | 0.04 |
| Apr | 3.78 | 3.77 | 0.01 |
| May | 5.15 | 5.01 | 0.14 |
| Jun | 4.87 | 4.78 | 0.09 |
| Jul | 3.48 | 3.43 | 0.05 |
| Aug | 3.23 | 3.22 | 0.01 |
| Sep | 3.70 | 3.62 | 0.08 |
| Oct | 3.59 | 3.53 | 0.06 |
| Nov | 2.31 | 2.26 | 0.05 |
| Dec | 1.94 | 1.90 | 0.04 |
37.81 | 37.24 | 0.57 |