| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.82 | -0.12 |
| Feb | 0.81 | 0.91 | -0.10 |
| Mar | 1.45 | 1.57 | -0.12 |
| Apr | 2.75 | 2.97 | -0.22 |
| May | 4.16 | 4.34 | -0.18 |
| Jun | 4.49 | 4.49 | 0.00 |
| Jul | 4.29 | 4.53 | -0.24 |
| Aug | 4.03 | 4.23 | -0.20 |
| Sep | 3.21 | 3.36 | -0.15 |
| Oct | 2.81 | 2.86 | -0.05 |
| Nov | 1.54 | 1.69 | -0.15 |
| Dec | 1.05 | 1.19 | -0.14 |
31.29 | 32.96 | -1.67 |