| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.58 | 2.63 | -0.05 |
| Feb | 2.97 | 2.91 | 0.06 |
| Mar | 3.74 | 3.65 | 0.09 |
| Apr | 3.52 | 3.50 | 0.02 |
| May | 4.82 | 4.91 | -0.09 |
| Jun | 3.77 | 3.78 | -0.01 |
| Jul | 2.15 | 2.13 | 0.02 |
| Aug | 2.34 | 2.29 | 0.05 |
| Sep | 3.04 | 3.14 | -0.10 |
| Oct | 4.86 | 4.69 | 0.17 |
| Nov | 3.08 | 3.12 | -0.04 |
| Dec | 3.30 | 3.36 | -0.06 |
40.17 | 40.11 | 0.06 |