| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 3.57 | 0.33 |
| Feb | 3.22 | 3.15 | 0.07 |
| Mar | 3.96 | 3.93 | 0.03 |
| Apr | 4.13 | 4.25 | -0.12 |
| May | 3.61 | 3.65 | -0.04 |
| Jun | 4.29 | 4.24 | 0.05 |
| Jul | 3.35 | 3.28 | 0.07 |
| Aug | 3.37 | 3.37 | 0.00 |
| Sep | 4.00 | 3.86 | 0.14 |
| Oct | 5.21 | 5.31 | -0.10 |
| Nov | 4.59 | 4.50 | 0.09 |
| Dec | 4.67 | 4.46 | 0.21 |
48.30 | 47.57 | 0.73 |