| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.63 | -0.23 |
| Feb | 2.90 | 3.01 | -0.11 |
| Mar | 4.12 | 4.22 | -0.10 |
| Apr | 3.91 | 4.04 | -0.13 |
| May | 3.78 | 3.86 | -0.08 |
| Jun | 4.30 | 4.44 | -0.14 |
| Jul | 4.19 | 4.34 | -0.15 |
| Aug | 4.16 | 4.53 | -0.37 |
| Sep | 4.07 | 4.19 | -0.12 |
| Oct | 4.12 | 4.25 | -0.13 |
| Nov | 3.50 | 3.45 | 0.05 |
| Dec | 4.22 | 4.44 | -0.22 |
46.67 | 48.40 | -1.73 |