| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.86 | 4.44 | 0.42 |
| Feb | 4.38 | 4.19 | 0.19 |
| Mar | 4.79 | 4.39 | 0.40 |
| Apr | 4.66 | 4.40 | 0.26 |
| May | 4.22 | 4.12 | 0.10 |
| Jun | 4.67 | 3.98 | 0.69 |
| Jul | 4.64 | 3.99 | 0.65 |
| Aug | 4.30 | 4.24 | 0.06 |
| Sep | 4.21 | 4.24 | -0.03 |
| Oct | 3.71 | 2.99 | 0.72 |
| Nov | 4.04 | 3.50 | 0.54 |
| Dec | 5.05 | 4.66 | 0.39 |
53.53 | 49.14 | 4.39 |