| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.79 | 3.73 | 0.06 |
| Feb | 4.22 | 4.23 | -0.01 |
| Mar | 5.18 | 5.16 | 0.02 |
| Apr | 5.70 | 5.58 | 0.12 |
| May | 5.74 | 5.54 | 0.20 |
| Jun | 3.85 | 3.74 | 0.11 |
| Jul | 4.00 | 3.95 | 0.05 |
| Aug | 3.68 | 3.32 | 0.36 |
| Sep | 3.47 | 3.42 | 0.05 |
| Oct | 4.51 | 4.54 | -0.03 |
| Nov | 4.89 | 5.12 | -0.23 |
| Dec | 5.07 | 5.19 | -0.12 |
54.10 | 53.52 | 0.58 |