| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.85 | 4.70 | 0.15 |
| Feb | 4.76 | 4.66 | 0.10 |
| Mar | 5.07 | 4.77 | 0.30 |
| Apr | 4.06 | 4.07 | -0.01 |
| May | 3.92 | 4.00 | -0.08 |
| Jun | 4.49 | 4.90 | -0.41 |
| Jul | 4.51 | 4.49 | 0.02 |
| Aug | 4.66 | 4.60 | 0.06 |
| Sep | 4.33 | 4.16 | 0.17 |
| Oct | 3.73 | 3.64 | 0.09 |
| Nov | 4.20 | 4.15 | 0.05 |
| Dec | 4.71 | 4.72 | -0.01 |
53.29 | 52.86 | 0.43 |