| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.80 | -0.27 |
| Feb | 2.97 | 3.45 | -0.48 |
| Mar | 4.04 | 4.64 | -0.60 |
| Apr | 4.19 | 4.47 | -0.28 |
| May | 3.63 | 3.75 | -0.12 |
| Jun | 4.01 | 4.09 | -0.08 |
| Jul | 3.32 | 3.57 | -0.25 |
| Aug | 3.77 | 4.20 | -0.43 |
| Sep | 4.18 | 4.47 | -0.29 |
| Oct | 4.50 | 4.68 | -0.18 |
| Nov | 3.81 | 3.88 | -0.07 |
| Dec | 4.32 | 4.74 | -0.42 |
46.27 | 49.74 | -3.47 |