| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.23 | 1.20 | 0.03 |
| Feb | 1.53 | 1.58 | -0.05 |
| Mar | 2.24 | 2.25 | -0.01 |
| Apr | 3.77 | 3.78 | -0.01 |
| May | 5.19 | 5.51 | -0.32 |
| Jun | 5.11 | 5.48 | -0.37 |
| Jul | 4.11 | 4.43 | -0.32 |
| Aug | 4.18 | 4.27 | -0.09 |
| Sep | 3.78 | 3.79 | -0.01 |
| Oct | 2.77 | 2.77 | 0.00 |
| Nov | 2.11 | 2.22 | -0.11 |
| Dec | 1.58 | 1.50 | 0.08 |
37.60 | 38.78 | -1.18 |