| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.21 | 3.09 | 0.12 |
| Feb | 2.70 | 2.48 | 0.22 |
| Mar | 4.01 | 3.66 | 0.35 |
| Apr | 3.56 | 3.36 | 0.20 |
| May | 3.74 | 3.57 | 0.17 |
| Jun | 4.29 | 4.10 | 0.19 |
| Jul | 4.39 | 4.07 | 0.32 |
| Aug | 3.98 | 3.62 | 0.36 |
| Sep | 4.75 | 4.49 | 0.26 |
| Oct | 4.36 | 4.21 | 0.15 |
| Nov | 3.26 | 3.02 | 0.24 |
| Dec | 3.77 | 3.62 | 0.15 |
46.02 | 43.29 | 2.73 |