| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.35 | 3.60 | -0.25 |
| Feb | 3.18 | 3.30 | -0.12 |
| Mar | 4.11 | 4.35 | -0.24 |
| Apr | 4.01 | 4.20 | -0.19 |
| May | 3.65 | 3.55 | 0.10 |
| Jun | 4.07 | 4.15 | -0.08 |
| Jul | 3.62 | 3.76 | -0.14 |
| Aug | 3.80 | 3.90 | -0.10 |
| Sep | 3.83 | 3.83 | 0.00 |
| Oct | 4.68 | 4.79 | -0.11 |
| Nov | 3.81 | 3.76 | 0.05 |
| Dec | 4.41 | 4.64 | -0.23 |
46.52 | 47.83 | -1.31 |