| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.80 | -0.32 |
| Feb | 2.95 | 3.45 | -0.50 |
| Mar | 4.02 | 4.65 | -0.63 |
| Apr | 4.21 | 4.46 | -0.25 |
| May | 3.58 | 3.75 | -0.17 |
| Jun | 3.97 | 4.07 | -0.10 |
| Jul | 3.25 | 3.55 | -0.30 |
| Aug | 3.76 | 4.20 | -0.44 |
| Sep | 4.08 | 4.46 | -0.38 |
| Oct | 4.59 | 4.68 | -0.09 |
| Nov | 3.80 | 3.87 | -0.07 |
| Dec | 4.27 | 4.74 | -0.47 |
45.96 | 49.68 | -3.72 |