| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.46 | 5.07 | 0.39 |
| Feb | 5.55 | 5.41 | 0.14 |
| Mar | 5.15 | 5.06 | 0.09 |
| Apr | 5.10 | 4.95 | 0.15 |
| May | 3.77 | 3.76 | 0.01 |
| Jun | 4.51 | 4.36 | 0.15 |
| Jul | 4.54 | 4.35 | 0.19 |
| Aug | 4.36 | 4.19 | 0.17 |
| Sep | 3.65 | 3.76 | -0.11 |
| Oct | 3.33 | 3.26 | 0.07 |
| Nov | 4.48 | 4.48 | 0.00 |
| Dec | 5.10 | 4.85 | 0.25 |
55.00 | 53.50 | 1.50 |