| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.47 | -0.09 |
| Feb | 2.85 | 3.04 | -0.19 |
| Mar | 3.65 | 3.70 | -0.05 |
| Apr | 3.33 | 3.50 | -0.17 |
| May | 3.74 | 3.85 | -0.11 |
| Jun | 4.32 | 4.35 | -0.03 |
| Jul | 5.41 | 5.24 | 0.17 |
| Aug | 5.14 | 5.24 | -0.10 |
| Sep | 4.90 | 4.70 | 0.20 |
| Oct | 3.86 | 4.15 | -0.29 |
| Nov | 2.92 | 3.20 | -0.28 |
| Dec | 3.30 | 3.58 | -0.28 |
46.80 | 48.02 | -1.22 |