| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 2.95 | 0.11 |
| Feb | 2.42 | 2.27 | 0.15 |
| Mar | 3.16 | 3.09 | 0.07 |
| Apr | 3.91 | 3.81 | 0.10 |
| May | 3.95 | 3.91 | 0.04 |
| Jun | 4.54 | 4.20 | 0.34 |
| Jul | 4.46 | 4.42 | 0.04 |
| Aug | 3.77 | 3.56 | 0.21 |
| Sep | 3.98 | 3.97 | 0.01 |
| Oct | 3.65 | 3.45 | 0.20 |
| Nov | 3.09 | 2.97 | 0.12 |
| Dec | 3.19 | 3.02 | 0.17 |
43.18 | 41.62 | 1.56 |