| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.85 | 1.94 | -0.09 |
| Feb | 1.77 | 1.89 | -0.12 |
| Mar | 2.28 | 2.24 | 0.04 |
| Apr | 3.81 | 3.71 | 0.10 |
| May | 4.50 | 4.71 | -0.21 |
| Jun | 4.63 | 4.41 | 0.22 |
| Jul | 3.93 | 3.70 | 0.23 |
| Aug | 3.93 | 4.05 | -0.12 |
| Sep | 3.45 | 3.38 | 0.07 |
| Oct | 3.26 | 3.25 | 0.01 |
| Nov | 2.45 | 2.38 | 0.07 |
| Dec | 2.09 | 2.10 | -0.01 |
37.95 | 37.76 | 0.19 |