| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.49 | 0.11 |
| Feb | 3.33 | 3.30 | 0.03 |
| Mar | 4.07 | 4.04 | 0.03 |
| Apr | 4.00 | 3.75 | 0.25 |
| May | 4.71 | 4.66 | 0.05 |
| Jun | 4.96 | 4.65 | 0.31 |
| Jul | 5.04 | 4.95 | 0.09 |
| Aug | 4.08 | 3.93 | 0.15 |
| Sep | 3.55 | 3.43 | 0.12 |
| Oct | 3.15 | 3.20 | -0.05 |
| Nov | 3.01 | 2.96 | 0.05 |
| Dec | 3.64 | 3.63 | 0.01 |
47.14 | 45.99 | 1.15 |