| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.07 | 3.37 | -0.30 |
| Feb | 2.75 | 2.95 | -0.20 |
| Mar | 3.97 | 4.23 | -0.26 |
| Apr | 3.40 | 3.56 | -0.16 |
| May | 3.41 | 3.85 | -0.44 |
| Jun | 4.20 | 4.20 | 0.00 |
| Jul | 4.40 | 4.27 | 0.13 |
| Aug | 4.45 | 4.65 | -0.20 |
| Sep | 4.08 | 4.33 | -0.25 |
| Oct | 3.78 | 4.08 | -0.30 |
| Nov | 3.16 | 3.24 | -0.08 |
| Dec | 3.80 | 4.01 | -0.21 |
44.47 | 46.74 | -2.27 |