| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.43 | -0.03 |
| Feb | 3.15 | 3.08 | 0.07 |
| Mar | 3.97 | 3.89 | 0.08 |
| Apr | 4.20 | 4.12 | 0.08 |
| May | 3.76 | 3.76 | 0.00 |
| Jun | 4.53 | 4.57 | -0.04 |
| Jul | 4.20 | 4.15 | 0.05 |
| Aug | 4.30 | 4.25 | 0.05 |
| Sep | 4.59 | 4.52 | 0.07 |
| Oct | 4.98 | 5.04 | -0.06 |
| Nov | 3.81 | 3.73 | 0.08 |
| Dec | 4.34 | 4.51 | -0.17 |
49.23 | 49.05 | 0.18 |