| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.46 | 3.76 | -0.30 |
| Feb | 3.13 | 3.41 | -0.28 |
| Mar | 4.45 | 4.60 | -0.15 |
| Apr | 3.98 | 4.17 | -0.19 |
| May | 3.39 | 3.47 | -0.08 |
| Jun | 3.93 | 3.94 | -0.01 |
| Jul | 3.21 | 3.18 | 0.03 |
| Aug | 3.76 | 3.98 | -0.22 |
| Sep | 3.76 | 3.76 | 0.00 |
| Oct | 4.17 | 4.43 | -0.26 |
| Nov | 3.49 | 3.59 | -0.10 |
| Dec | 4.54 | 4.77 | -0.23 |
45.27 | 47.06 | -1.79 |