| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.78 | -0.09 |
| Feb | 0.80 | 0.88 | -0.08 |
| Mar | 1.47 | 1.51 | -0.04 |
| Apr | 2.85 | 2.87 | -0.02 |
| May | 4.10 | 4.19 | -0.09 |
| Jun | 4.49 | 4.49 | 0.00 |
| Jul | 3.94 | 4.03 | -0.09 |
| Aug | 4.11 | 4.14 | -0.03 |
| Sep | 3.26 | 3.28 | -0.02 |
| Oct | 2.67 | 2.63 | 0.04 |
| Nov | 1.45 | 1.53 | -0.08 |
| Dec | 1.01 | 1.16 | -0.15 |
30.84 | 31.49 | -0.65 |