| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.76 | 2.80 | -0.04 |
| Feb | 2.22 | 2.34 | -0.12 |
| Mar | 3.33 | 3.36 | -0.03 |
| Apr | 3.47 | 3.38 | 0.09 |
| May | 4.02 | 3.89 | 0.13 |
| Jun | 3.66 | 3.62 | 0.04 |
| Jul | 3.74 | 3.42 | 0.32 |
| Aug | 3.38 | 3.17 | 0.21 |
| Sep | 4.27 | 4.11 | 0.16 |
| Oct | 3.10 | 3.28 | -0.18 |
| Nov | 2.83 | 2.85 | -0.02 |
| Dec | 3.32 | 3.33 | -0.01 |
40.10 | 39.55 | 0.55 |