| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.48 | -0.04 |
| Feb | 3.03 | 3.04 | -0.01 |
| Mar | 4.14 | 4.24 | -0.10 |
| Apr | 3.35 | 3.51 | -0.16 |
| May | 3.50 | 3.70 | -0.20 |
| Jun | 3.61 | 3.76 | -0.15 |
| Jul | 4.47 | 4.47 | 0.00 |
| Aug | 4.63 | 4.73 | -0.10 |
| Sep | 4.16 | 4.37 | -0.21 |
| Oct | 4.19 | 4.44 | -0.25 |
| Nov | 3.28 | 3.40 | -0.12 |
| Dec | 3.85 | 4.14 | -0.29 |
45.65 | 47.28 | -1.63 |