| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.60 | -0.22 |
| Feb | 3.44 | 3.50 | -0.06 |
| Mar | 4.53 | 4.55 | -0.02 |
| Apr | 4.71 | 4.70 | 0.01 |
| May | 5.31 | 5.13 | 0.18 |
| Jun | 4.88 | 4.76 | 0.12 |
| Jul | 4.96 | 5.05 | -0.09 |
| Aug | 3.52 | 3.42 | 0.10 |
| Sep | 3.36 | 3.66 | -0.30 |
| Oct | 3.73 | 3.58 | 0.15 |
| Nov | 3.29 | 3.40 | -0.11 |
| Dec | 4.09 | 4.17 | -0.08 |
49.20 | 49.52 | -0.32 |