| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.20 | 3.16 | 0.04 |
| Feb | 3.09 | 3.16 | -0.07 |
| Mar | 4.06 | 4.05 | 0.01 |
| Apr | 3.94 | 3.99 | -0.05 |
| May | 3.68 | 3.66 | 0.02 |
| Jun | 4.15 | 4.11 | 0.04 |
| Jul | 3.78 | 3.51 | 0.27 |
| Aug | 3.66 | 3.60 | 0.06 |
| Sep | 4.02 | 3.76 | 0.26 |
| Oct | 4.66 | 4.68 | -0.02 |
| Nov | 3.77 | 3.71 | 0.06 |
| Dec | 4.12 | 4.26 | -0.14 |
46.13 | 45.65 | 0.48 |