| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.72 | 0.02 |
| Feb | 0.80 | 0.78 | 0.02 |
| Mar | 1.45 | 1.42 | 0.03 |
| Apr | 2.36 | 2.48 | -0.12 |
| May | 3.51 | 3.48 | 0.03 |
| Jun | 4.48 | 4.49 | -0.01 |
| Jul | 4.63 | 4.65 | -0.02 |
| Aug | 3.88 | 3.75 | 0.13 |
| Sep | 3.19 | 3.06 | 0.13 |
| Oct | 2.94 | 2.88 | 0.06 |
| Nov | 1.49 | 1.47 | 0.02 |
| Dec | 1.00 | 1.10 | -0.10 |
30.47 | 30.28 | 0.19 |