| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.36 | -0.06 |
| Feb | 2.70 | 2.75 | -0.05 |
| Mar | 4.15 | 4.14 | 0.01 |
| Apr | 3.62 | 3.67 | -0.05 |
| May | 3.84 | 3.99 | -0.15 |
| Jun | 4.39 | 4.20 | 0.19 |
| Jul | 4.63 | 4.53 | 0.10 |
| Aug | 4.06 | 4.15 | -0.09 |
| Sep | 4.80 | 4.89 | -0.09 |
| Oct | 4.19 | 4.38 | -0.19 |
| Nov | 3.32 | 3.36 | -0.04 |
| Dec | 3.88 | 3.92 | -0.04 |
46.88 | 47.34 | -0.46 |