| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.54 | 0.02 |
| Feb | 3.45 | 3.62 | -0.17 |
| Mar | 4.31 | 4.59 | -0.28 |
| Apr | 4.33 | 4.62 | -0.29 |
| May | 3.77 | 3.98 | -0.21 |
| Jun | 4.16 | 4.24 | -0.08 |
| Jul | 3.67 | 3.66 | 0.01 |
| Aug | 3.50 | 3.53 | -0.03 |
| Sep | 3.89 | 3.91 | -0.02 |
| Oct | 4.88 | 5.12 | -0.24 |
| Nov | 4.13 | 4.15 | -0.02 |
| Dec | 4.56 | 4.73 | -0.17 |
48.21 | 49.69 | -1.48 |