| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.74 | -0.20 |
| Feb | 2.93 | 3.01 | -0.08 |
| Mar | 4.22 | 4.27 | -0.05 |
| Apr | 3.73 | 3.71 | 0.02 |
| May | 3.71 | 3.74 | -0.03 |
| Jun | 4.42 | 4.19 | 0.23 |
| Jul | 4.53 | 4.50 | 0.03 |
| Aug | 4.37 | 4.17 | 0.20 |
| Sep | 4.82 | 4.99 | -0.17 |
| Oct | 3.56 | 3.45 | 0.11 |
| Nov | 3.32 | 3.34 | -0.02 |
| Dec | 3.56 | 3.61 | -0.05 |
46.71 | 46.72 | -0.01 |