| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.90 | 2.88 | 0.02 |
| Feb | 2.22 | 2.26 | -0.04 |
| Mar | 3.04 | 3.10 | -0.06 |
| Apr | 3.65 | 3.76 | -0.11 |
| May | 3.95 | 3.81 | 0.14 |
| Jun | 4.52 | 4.27 | 0.25 |
| Jul | 4.10 | 3.95 | 0.15 |
| Aug | 3.58 | 3.45 | 0.13 |
| Sep | 3.69 | 3.61 | 0.08 |
| Oct | 3.21 | 3.11 | 0.10 |
| Nov | 2.63 | 2.80 | -0.17 |
| Dec | 2.77 | 2.86 | -0.09 |
40.26 | 39.86 | 0.40 |