| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.51 | -0.07 |
| Feb | 2.80 | 2.87 | -0.07 |
| Mar | 4.28 | 4.32 | -0.04 |
| Apr | 3.89 | 3.66 | 0.23 |
| May | 3.70 | 3.86 | -0.16 |
| Jun | 4.77 | 4.49 | 0.28 |
| Jul | 4.95 | 4.51 | 0.44 |
| Aug | 4.45 | 4.50 | -0.05 |
| Sep | 4.88 | 4.92 | -0.04 |
| Oct | 4.28 | 4.31 | -0.03 |
| Nov | 3.42 | 3.32 | 0.10 |
| Dec | 4.09 | 4.28 | -0.19 |
48.95 | 48.55 | 0.40 |