| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.60 | -0.21 |
| Feb | 3.42 | 3.45 | -0.03 |
| Mar | 4.57 | 4.50 | 0.07 |
| Apr | 4.73 | 4.76 | -0.03 |
| May | 5.43 | 5.23 | 0.20 |
| Jun | 4.91 | 4.78 | 0.13 |
| Jul | 5.10 | 4.88 | 0.22 |
| Aug | 3.55 | 3.41 | 0.14 |
| Sep | 3.18 | 3.62 | -0.44 |
| Oct | 3.76 | 3.47 | 0.29 |
| Nov | 3.30 | 3.37 | -0.07 |
| Dec | 4.15 | 4.13 | 0.02 |
49.49 | 49.20 | 0.29 |