| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.93 | -0.03 |
| Feb | 0.94 | 0.97 | -0.03 |
| Mar | 1.48 | 1.53 | -0.05 |
| Apr | 2.71 | 2.79 | -0.08 |
| May | 3.63 | 3.70 | -0.07 |
| Jun | 4.05 | 4.11 | -0.06 |
| Jul | 4.23 | 4.66 | -0.43 |
| Aug | 3.98 | 4.08 | -0.10 |
| Sep | 3.61 | 3.74 | -0.13 |
| Oct | 3.18 | 3.24 | -0.06 |
| Nov | 1.71 | 1.73 | -0.02 |
| Dec | 1.33 | 1.26 | 0.07 |
31.75 | 32.74 | -0.99 |