| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.42 | 1.47 | -0.05 |
| Feb | 1.47 | 1.53 | -0.06 |
| Mar | 2.14 | 2.11 | 0.03 |
| Apr | 3.75 | 3.86 | -0.11 |
| May | 4.21 | 4.26 | -0.05 |
| Jun | 5.49 | 5.46 | 0.03 |
| Jul | 4.64 | 4.42 | 0.22 |
| Aug | 4.21 | 4.27 | -0.06 |
| Sep | 3.66 | 3.48 | 0.18 |
| Oct | 2.91 | 2.95 | -0.04 |
| Nov | 2.28 | 2.33 | -0.05 |
| Dec | 1.67 | 1.76 | -0.09 |
37.85 | 37.90 | -0.05 |