| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.55 | 3.77 | -0.22 |
| Feb | 3.54 | 3.74 | -0.20 |
| Mar | 4.67 | 4.80 | -0.13 |
| Apr | 5.23 | 5.35 | -0.12 |
| May | 5.23 | 5.22 | 0.01 |
| Jun | 3.94 | 3.48 | 0.46 |
| Jul | 4.19 | 4.10 | 0.09 |
| Aug | 3.18 | 2.95 | 0.23 |
| Sep | 3.28 | 3.38 | -0.10 |
| Oct | 3.69 | 4.00 | -0.31 |
| Nov | 4.53 | 4.59 | -0.06 |
| Dec | 4.18 | 4.29 | -0.11 |
49.21 | 49.67 | -0.46 |