| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.73 | -0.20 |
| Feb | 2.99 | 3.00 | -0.01 |
| Mar | 4.19 | 4.28 | -0.09 |
| Apr | 3.67 | 3.63 | 0.04 |
| May | 3.69 | 3.62 | 0.07 |
| Jun | 4.26 | 4.09 | 0.17 |
| Jul | 4.60 | 4.52 | 0.08 |
| Aug | 4.41 | 4.13 | 0.28 |
| Sep | 4.89 | 4.99 | -0.10 |
| Oct | 3.42 | 3.47 | -0.05 |
| Nov | 3.30 | 3.31 | -0.01 |
| Dec | 3.55 | 3.62 | -0.07 |
46.50 | 46.39 | 0.11 |