| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.44 | -0.07 |
| Feb | 2.85 | 2.96 | -0.11 |
| Mar | 4.14 | 4.24 | -0.10 |
| Apr | 4.98 | 5.02 | -0.04 |
| May | 5.19 | 5.29 | -0.10 |
| Jun | 4.77 | 4.58 | 0.19 |
| Jul | 4.30 | 4.19 | 0.11 |
| Aug | 3.03 | 3.18 | -0.15 |
| Sep | 3.73 | 3.60 | 0.13 |
| Oct | 3.46 | 3.45 | 0.01 |
| Nov | 3.89 | 4.03 | -0.14 |
| Dec | 3.55 | 3.69 | -0.14 |
47.26 | 47.67 | -0.41 |