| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.67 | 1.84 | -0.17 |
| Feb | 1.59 | 1.80 | -0.21 |
| Mar | 2.13 | 2.31 | -0.18 |
| Apr | 3.71 | 3.90 | -0.19 |
| May | 3.80 | 3.69 | 0.11 |
| Jun | 4.07 | 3.96 | 0.11 |
| Jul | 3.23 | 2.92 | 0.31 |
| Aug | 3.53 | 3.42 | 0.11 |
| Sep | 3.25 | 3.12 | 0.13 |
| Oct | 3.00 | 3.08 | -0.08 |
| Nov | 2.26 | 2.40 | -0.14 |
| Dec | 1.89 | 2.03 | -0.14 |
34.13 | 34.47 | -0.34 |