| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.84 | 3.86 | -0.02 |
| Feb | 3.43 | 3.57 | -0.14 |
| Mar | 3.87 | 4.00 | -0.13 |
| Apr | 3.31 | 3.48 | -0.17 |
| May | 4.13 | 4.27 | -0.14 |
| Jun | 5.18 | 5.15 | 0.03 |
| Jul | 6.28 | 6.98 | -0.70 |
| Aug | 7.04 | 7.65 | -0.61 |
| Sep | 8.08 | 9.22 | -1.14 |
| Oct | 4.69 | 4.95 | -0.26 |
| Nov | 3.60 | 3.74 | -0.14 |
| Dec | 3.65 | 3.93 | -0.28 |
57.10 | 60.80 | -3.70 |