| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.36 | 5.91 | -0.55 |
| Feb | 3.75 | 4.11 | -0.36 |
| Mar | 4.28 | 4.45 | -0.17 |
| Apr | 3.20 | 3.54 | -0.34 |
| May | 2.26 | 2.59 | -0.33 |
| Jun | 1.87 | 2.08 | -0.21 |
| Jul | 0.80 | 0.90 | -0.10 |
| Aug | 1.01 | 1.11 | -0.10 |
| Sep | 1.81 | 1.97 | -0.16 |
| Oct | 4.01 | 4.10 | -0.09 |
| Nov | 6.03 | 6.54 | -0.51 |
| Dec | 5.63 | 6.01 | -0.38 |
40.01 | 43.31 | -3.30 |