| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.92 | 0.92 | 0.00 |
| Feb | 0.98 | 0.99 | -0.01 |
| Mar | 1.84 | 1.80 | 0.04 |
| Apr | 3.19 | 2.98 | 0.21 |
| May | 4.36 | 4.41 | -0.05 |
| Jun | 5.33 | 5.24 | 0.09 |
| Jul | 4.43 | 4.24 | 0.19 |
| Aug | 4.66 | 4.67 | -0.01 |
| Sep | 3.68 | 3.53 | 0.15 |
| Oct | 2.61 | 2.53 | 0.08 |
| Nov | 1.68 | 1.67 | 0.01 |
| Dec | 1.18 | 1.26 | -0.08 |
34.86 | 34.24 | 0.62 |