| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.82 | -0.13 |
| Feb | 0.78 | 0.88 | -0.10 |
| Mar | 1.46 | 1.57 | -0.11 |
| Apr | 2.80 | 2.93 | -0.13 |
| May | 4.14 | 4.28 | -0.14 |
| Jun | 4.39 | 4.45 | -0.06 |
| Jul | 4.15 | 4.24 | -0.09 |
| Aug | 4.03 | 4.14 | -0.11 |
| Sep | 3.13 | 3.26 | -0.13 |
| Oct | 2.81 | 2.71 | 0.10 |
| Nov | 1.53 | 1.61 | -0.08 |
| Dec | 1.01 | 1.19 | -0.18 |
30.92 | 32.08 | -1.16 |