| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.80 | 2.89 | -0.09 |
| Feb | 2.33 | 2.44 | -0.11 |
| Mar | 3.14 | 3.34 | -0.20 |
| Apr | 4.18 | 4.38 | -0.20 |
| May | 4.51 | 4.65 | -0.14 |
| Jun | 5.03 | 5.01 | 0.02 |
| Jul | 4.06 | 4.12 | -0.06 |
| Aug | 3.36 | 3.10 | 0.26 |
| Sep | 3.32 | 3.35 | -0.03 |
| Oct | 3.14 | 3.20 | -0.06 |
| Nov | 3.40 | 3.48 | -0.08 |
| Dec | 2.76 | 2.91 | -0.15 |
42.03 | 42.87 | -0.84 |