| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.90 | -0.22 |
| Feb | 3.55 | 3.46 | 0.09 |
| Mar | 4.07 | 3.87 | 0.20 |
| Apr | 4.21 | 3.98 | 0.23 |
| May | 4.54 | 4.56 | -0.02 |
| Jun | 4.46 | 4.56 | -0.10 |
| Jul | 4.73 | 4.78 | -0.05 |
| Aug | 4.02 | 4.07 | -0.05 |
| Sep | 3.29 | 3.14 | 0.15 |
| Oct | 2.91 | 2.64 | 0.27 |
| Nov | 2.97 | 3.09 | -0.12 |
| Dec | 3.76 | 3.90 | -0.14 |
46.19 | 45.95 | 0.24 |