| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.63 | -0.14 |
| Feb | 3.33 | 3.44 | -0.11 |
| Mar | 4.39 | 4.61 | -0.22 |
| Apr | 4.14 | 4.20 | -0.06 |
| May | 3.62 | 3.62 | 0.00 |
| Jun | 4.09 | 4.13 | -0.04 |
| Jul | 3.50 | 3.56 | -0.06 |
| Aug | 3.46 | 3.38 | 0.08 |
| Sep | 3.77 | 3.73 | 0.04 |
| Oct | 4.70 | 4.80 | -0.10 |
| Nov | 3.86 | 3.94 | -0.08 |
| Dec | 4.54 | 4.72 | -0.18 |
46.89 | 47.76 | -0.87 |