| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.51 | 0.02 |
| Feb | 3.12 | 2.97 | 0.15 |
| Mar | 3.97 | 3.98 | -0.01 |
| Apr | 3.62 | 3.50 | 0.12 |
| May | 3.73 | 3.80 | -0.07 |
| Jun | 4.47 | 4.52 | -0.05 |
| Jul | 5.15 | 5.39 | -0.24 |
| Aug | 5.25 | 5.10 | 0.15 |
| Sep | 5.60 | 5.58 | 0.02 |
| Oct | 3.30 | 3.27 | 0.03 |
| Nov | 3.37 | 3.28 | 0.09 |
| Dec | 3.50 | 3.31 | 0.19 |
48.61 | 48.21 | 0.40 |