| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.32 | 2.27 | 0.05 |
| Feb | 2.61 | 2.49 | 0.12 |
| Mar | 3.66 | 3.70 | -0.04 |
| Apr | 3.67 | 3.57 | 0.10 |
| May | 5.47 | 5.27 | 0.20 |
| Jun | 4.19 | 4.07 | 0.12 |
| Jul | 2.78 | 2.74 | 0.04 |
| Aug | 2.73 | 2.72 | 0.01 |
| Sep | 3.50 | 3.43 | 0.07 |
| Oct | 4.15 | 4.28 | -0.13 |
| Nov | 3.04 | 3.14 | -0.10 |
| Dec | 3.27 | 3.20 | 0.07 |
41.39 | 40.88 | 0.51 |