| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.40 | 0.05 |
| Feb | 3.16 | 3.04 | 0.12 |
| Mar | 3.41 | 3.46 | -0.05 |
| Apr | 3.18 | 3.19 | -0.01 |
| May | 3.30 | 3.08 | 0.22 |
| Jun | 5.50 | 5.59 | -0.09 |
| Jul | 5.75 | 5.56 | 0.19 |
| Aug | 6.27 | 6.73 | -0.46 |
| Sep | 4.66 | 4.85 | -0.19 |
| Oct | 3.94 | 4.22 | -0.28 |
| Nov | 2.45 | 2.55 | -0.10 |
| Dec | 3.11 | 3.31 | -0.20 |
48.18 | 48.98 | -0.80 |