| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.77 | 2.84 | -0.07 |
| Feb | 3.04 | 2.88 | 0.16 |
| Mar | 3.72 | 3.55 | 0.17 |
| Apr | 3.65 | 3.66 | -0.01 |
| May | 4.45 | 4.40 | 0.05 |
| Jun | 3.84 | 3.82 | 0.02 |
| Jul | 1.99 | 1.91 | 0.08 |
| Aug | 2.51 | 2.56 | -0.05 |
| Sep | 3.14 | 3.01 | 0.13 |
| Oct | 4.76 | 4.73 | 0.03 |
| Nov | 3.06 | 3.04 | 0.02 |
| Dec | 3.37 | 3.27 | 0.10 |
40.30 | 39.67 | 0.63 |