| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.70 | 0.00 |
| Feb | 0.77 | 0.81 | -0.04 |
| Mar | 1.51 | 1.43 | 0.08 |
| Apr | 2.56 | 2.54 | 0.02 |
| May | 3.52 | 3.42 | 0.10 |
| Jun | 4.71 | 4.61 | 0.10 |
| Jul | 3.85 | 3.69 | 0.16 |
| Aug | 4.00 | 3.89 | 0.11 |
| Sep | 2.98 | 2.91 | 0.07 |
| Oct | 2.36 | 2.30 | 0.06 |
| Nov | 1.30 | 1.27 | 0.03 |
| Dec | 0.89 | 0.91 | -0.02 |
29.15 | 28.48 | 0.67 |