| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.41 | 0.05 |
| Feb | 3.18 | 3.11 | 0.07 |
| Mar | 3.47 | 3.53 | -0.06 |
| Apr | 3.14 | 3.22 | -0.08 |
| May | 3.41 | 3.26 | 0.15 |
| Jun | 5.88 | 6.19 | -0.31 |
| Jul | 5.63 | 5.73 | -0.10 |
| Aug | 5.97 | 6.72 | -0.75 |
| Sep | 4.81 | 4.94 | -0.13 |
| Oct | 3.57 | 4.29 | -0.72 |
| Nov | 2.21 | 2.50 | -0.29 |
| Dec | 3.03 | 3.30 | -0.27 |
47.76 | 50.20 | -2.44 |