| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.63 | -0.15 |
| Feb | 2.91 | 2.84 | 0.07 |
| Mar | 4.06 | 3.89 | 0.17 |
| Apr | 3.42 | 3.60 | -0.18 |
| May | 3.77 | 3.89 | -0.12 |
| Jun | 4.46 | 4.47 | -0.01 |
| Jul | 5.51 | 4.99 | 0.52 |
| Aug | 5.25 | 5.54 | -0.29 |
| Sep | 5.30 | 5.50 | -0.20 |
| Oct | 3.83 | 4.43 | -0.60 |
| Nov | 3.20 | 3.33 | -0.13 |
| Dec | 3.45 | 3.56 | -0.11 |
48.64 | 49.67 | -1.03 |