| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.60 | -0.12 |
| Feb | 3.32 | 3.43 | -0.11 |
| Mar | 4.37 | 4.59 | -0.22 |
| Apr | 4.13 | 4.22 | -0.09 |
| May | 3.63 | 3.62 | 0.01 |
| Jun | 4.13 | 4.13 | 0.00 |
| Jul | 3.54 | 3.60 | -0.06 |
| Aug | 3.47 | 3.40 | 0.07 |
| Sep | 3.78 | 3.73 | 0.05 |
| Oct | 4.69 | 4.78 | -0.09 |
| Nov | 3.86 | 3.93 | -0.07 |
| Dec | 4.52 | 4.71 | -0.19 |
46.92 | 47.74 | -0.82 |