| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.67 | -0.12 |
| Feb | 2.87 | 2.97 | -0.10 |
| Mar | 3.87 | 4.03 | -0.16 |
| Apr | 3.69 | 3.90 | -0.21 |
| May | 3.67 | 3.64 | 0.03 |
| Jun | 4.30 | 4.26 | 0.04 |
| Jul | 4.08 | 4.09 | -0.01 |
| Aug | 4.37 | 4.17 | 0.20 |
| Sep | 4.34 | 4.66 | -0.32 |
| Oct | 3.24 | 3.24 | 0.00 |
| Nov | 3.24 | 3.35 | -0.11 |
| Dec | 3.32 | 3.51 | -0.19 |
44.54 | 45.49 | -0.95 |