| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.22 | 2.27 | -0.05 |
| Feb | 1.94 | 1.99 | -0.05 |
| Mar | 2.32 | 2.33 | -0.01 |
| Apr | 3.59 | 3.60 | -0.01 |
| May | 4.25 | 4.29 | -0.04 |
| Jun | 4.40 | 4.47 | -0.07 |
| Jul | 4.32 | 4.23 | 0.09 |
| Aug | 4.10 | 4.40 | -0.30 |
| Sep | 3.47 | 3.50 | -0.03 |
| Oct | 3.56 | 3.57 | -0.01 |
| Nov | 2.76 | 2.64 | 0.12 |
| Dec | 2.17 | 2.19 | -0.02 |
39.10 | 39.48 | -0.38 |