| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.84 | 4.80 | 0.04 |
| Feb | 4.83 | 4.76 | 0.07 |
| Mar | 5.05 | 4.89 | 0.16 |
| Apr | 4.20 | 4.19 | 0.01 |
| May | 3.98 | 4.08 | -0.10 |
| Jun | 4.33 | 4.09 | 0.24 |
| Jul | 4.75 | 4.70 | 0.05 |
| Aug | 4.20 | 4.16 | 0.04 |
| Sep | 4.10 | 3.91 | 0.19 |
| Oct | 3.49 | 3.39 | 0.10 |
| Nov | 4.20 | 4.17 | 0.03 |
| Dec | 4.74 | 4.64 | 0.10 |
52.71 | 51.78 | 0.93 |