| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.81 | 3.32 | -0.51 |
| Feb | 2.30 | 2.57 | -0.27 |
| Mar | 2.56 | 2.90 | -0.34 |
| Apr | 2.98 | 3.16 | -0.18 |
| May | 3.45 | 3.45 | 0.00 |
| Jun | 4.04 | 3.97 | 0.07 |
| Jul | 4.25 | 4.26 | -0.01 |
| Aug | 3.74 | 3.65 | 0.09 |
| Sep | 3.60 | 3.56 | 0.04 |
| Oct | 4.12 | 4.31 | -0.19 |
| Nov | 3.25 | 3.46 | -0.21 |
| Dec | 3.41 | 3.75 | -0.34 |
40.51 | 42.36 | -1.85 |