| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.45 | 0.21 |
| Feb | 2.91 | 2.68 | 0.23 |
| Mar | 4.07 | 3.86 | 0.21 |
| Apr | 3.64 | 3.47 | 0.17 |
| May | 4.37 | 4.43 | -0.06 |
| Jun | 4.20 | 3.99 | 0.21 |
| Jul | 4.41 | 4.50 | -0.09 |
| Aug | 3.82 | 3.89 | -0.07 |
| Sep | 4.50 | 4.64 | -0.14 |
| Oct | 3.73 | 3.61 | 0.12 |
| Nov | 3.46 | 3.33 | 0.13 |
| Dec | 3.60 | 3.57 | 0.03 |
46.37 | 45.42 | 0.95 |