| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.69 | -0.03 |
| Feb | 0.74 | 0.78 | -0.04 |
| Mar | 1.51 | 1.47 | 0.04 |
| Apr | 2.58 | 2.52 | 0.06 |
| May | 3.60 | 3.57 | 0.03 |
| Jun | 4.73 | 4.65 | 0.08 |
| Jul | 3.79 | 3.65 | 0.14 |
| Aug | 4.02 | 3.83 | 0.19 |
| Sep | 3.04 | 2.96 | 0.08 |
| Oct | 2.35 | 2.20 | 0.15 |
| Nov | 1.25 | 1.25 | 0.00 |
| Dec | 0.88 | 0.92 | -0.04 |
29.15 | 28.49 | 0.66 |