| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.85 | -0.31 |
| Feb | 2.99 | 3.47 | -0.48 |
| Mar | 4.37 | 4.81 | -0.44 |
| Apr | 4.13 | 4.58 | -0.45 |
| May | 3.59 | 3.60 | -0.01 |
| Jun | 3.85 | 4.12 | -0.27 |
| Jul | 3.29 | 3.52 | -0.23 |
| Aug | 3.74 | 4.39 | -0.65 |
| Sep | 4.09 | 4.55 | -0.46 |
| Oct | 4.56 | 4.76 | -0.20 |
| Nov | 3.74 | 4.06 | -0.32 |
| Dec | 4.38 | 4.79 | -0.41 |
46.27 | 50.50 | -4.23 |