| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.48 | 0.07 |
| Feb | 3.29 | 3.24 | 0.05 |
| Mar | 4.22 | 4.17 | 0.05 |
| Apr | 4.23 | 4.01 | 0.22 |
| May | 3.87 | 3.74 | 0.13 |
| Jun | 4.30 | 4.25 | 0.05 |
| Jul | 3.94 | 3.93 | 0.01 |
| Aug | 4.00 | 4.02 | -0.02 |
| Sep | 4.28 | 4.07 | 0.21 |
| Oct | 5.03 | 4.90 | 0.13 |
| Nov | 3.90 | 3.75 | 0.15 |
| Dec | 4.30 | 4.46 | -0.16 |
48.91 | 48.02 | 0.89 |