| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.68 | 2.78 | -0.10 |
| Feb | 2.00 | 2.06 | -0.06 |
| Mar | 2.65 | 2.84 | -0.19 |
| Apr | 3.40 | 3.52 | -0.12 |
| May | 3.58 | 3.61 | -0.03 |
| Jun | 4.16 | 4.18 | -0.02 |
| Jul | 4.11 | 4.06 | 0.05 |
| Aug | 3.94 | 4.03 | -0.09 |
| Sep | 3.90 | 3.89 | 0.01 |
| Oct | 3.84 | 3.92 | -0.08 |
| Nov | 2.98 | 3.10 | -0.12 |
| Dec | 2.91 | 3.04 | -0.13 |
40.15 | 41.03 | -0.88 |