| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.77 | -0.08 |
| Feb | 0.79 | 0.87 | -0.08 |
| Mar | 1.45 | 1.52 | -0.07 |
| Apr | 2.80 | 2.85 | -0.05 |
| May | 4.06 | 4.17 | -0.11 |
| Jun | 4.45 | 4.45 | 0.00 |
| Jul | 3.94 | 4.07 | -0.13 |
| Aug | 4.05 | 4.13 | -0.08 |
| Sep | 3.26 | 3.27 | -0.01 |
| Oct | 2.67 | 2.65 | 0.02 |
| Nov | 1.45 | 1.53 | -0.08 |
| Dec | 0.99 | 1.15 | -0.16 |
30.60 | 31.43 | -0.83 |