| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.76 | 3.90 | -0.14 |
| Feb | 3.51 | 3.48 | 0.03 |
| Mar | 4.67 | 4.76 | -0.09 |
| Apr | 4.18 | 4.36 | -0.18 |
| May | 3.61 | 3.67 | -0.06 |
| Jun | 4.12 | 4.14 | -0.02 |
| Jul | 3.47 | 3.49 | -0.02 |
| Aug | 3.60 | 3.67 | -0.07 |
| Sep | 3.85 | 3.91 | -0.06 |
| Oct | 4.78 | 4.86 | -0.08 |
| Nov | 3.99 | 4.04 | -0.05 |
| Dec | 4.77 | 4.88 | -0.11 |
48.31 | 49.16 | -0.85 |