| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.24 | 0.06 |
| Feb | 3.26 | 3.24 | 0.02 |
| Mar | 4.10 | 4.12 | -0.02 |
| Apr | 4.17 | 4.30 | -0.13 |
| May | 3.68 | 3.50 | 0.18 |
| Jun | 4.23 | 4.01 | 0.22 |
| Jul | 3.86 | 3.67 | 0.19 |
| Aug | 3.58 | 3.57 | 0.01 |
| Sep | 3.87 | 3.69 | 0.18 |
| Oct | 4.73 | 4.80 | -0.07 |
| Nov | 4.07 | 3.89 | 0.18 |
| Dec | 4.31 | 4.38 | -0.07 |
47.16 | 46.41 | 0.75 |