| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.91 | -0.18 |
| Feb | 0.78 | 0.89 | -0.11 |
| Mar | 1.55 | 1.64 | -0.09 |
| Apr | 2.90 | 3.04 | -0.14 |
| May | 4.15 | 4.30 | -0.15 |
| Jun | 4.57 | 4.62 | -0.05 |
| Jul | 4.15 | 4.23 | -0.08 |
| Aug | 4.33 | 4.30 | 0.03 |
| Sep | 3.34 | 3.32 | 0.02 |
| Oct | 2.70 | 2.70 | 0.00 |
| Nov | 1.53 | 1.65 | -0.12 |
| Dec | 1.01 | 1.27 | -0.26 |
31.74 | 32.87 | -1.13 |