| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.24 | 3.39 | -0.15 |
| Feb | 2.74 | 2.84 | -0.10 |
| Mar | 3.96 | 3.90 | 0.06 |
| Apr | 3.68 | 3.61 | 0.07 |
| May | 3.76 | 3.62 | 0.14 |
| Jun | 4.31 | 4.22 | 0.09 |
| Jul | 4.75 | 4.75 | 0.00 |
| Aug | 4.32 | 4.27 | 0.05 |
| Sep | 4.60 | 4.69 | -0.09 |
| Oct | 4.03 | 4.17 | -0.14 |
| Nov | 3.14 | 3.18 | -0.04 |
| Dec | 4.05 | 4.25 | -0.20 |
46.58 | 46.89 | -0.31 |