| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.28 | 3.36 | -0.08 |
| Feb | 3.23 | 3.30 | -0.07 |
| Mar | 4.08 | 4.30 | -0.22 |
| Apr | 4.20 | 4.43 | -0.23 |
| May | 3.66 | 3.56 | 0.10 |
| Jun | 4.26 | 4.07 | 0.19 |
| Jul | 3.92 | 3.76 | 0.16 |
| Aug | 3.64 | 3.63 | 0.01 |
| Sep | 3.87 | 3.71 | 0.16 |
| Oct | 4.75 | 4.95 | -0.20 |
| Nov | 4.08 | 4.08 | 0.00 |
| Dec | 4.31 | 4.48 | -0.17 |
47.28 | 47.63 | -0.35 |