| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.88 | 4.86 | 0.02 |
| Feb | 5.14 | 4.97 | 0.17 |
| Mar | 4.96 | 5.04 | -0.08 |
| Apr | 4.87 | 5.10 | -0.23 |
| May | 3.95 | 4.28 | -0.33 |
| Jun | 4.41 | 4.51 | -0.10 |
| Jul | 4.68 | 5.47 | -0.79 |
| Aug | 3.73 | 3.54 | 0.19 |
| Sep | 3.90 | 3.98 | -0.08 |
| Oct | 3.42 | 2.92 | 0.50 |
| Nov | 4.34 | 3.95 | 0.39 |
| Dec | 5.74 | 5.54 | 0.20 |
54.02 | 54.16 | -0.14 |