| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.46 | 0.12 |
| Feb | 2.86 | 2.67 | 0.19 |
| Mar | 4.09 | 3.92 | 0.17 |
| Apr | 3.68 | 3.44 | 0.24 |
| May | 4.40 | 4.36 | 0.04 |
| Jun | 4.02 | 3.91 | 0.11 |
| Jul | 4.42 | 4.37 | 0.05 |
| Aug | 3.82 | 3.87 | -0.05 |
| Sep | 4.50 | 4.61 | -0.11 |
| Oct | 3.82 | 3.66 | 0.16 |
| Nov | 3.56 | 3.37 | 0.19 |
| Dec | 3.69 | 3.58 | 0.11 |
46.44 | 45.22 | 1.22 |