| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.65 | 0.58 | 0.07 |
| Feb | 0.60 | 0.57 | 0.03 |
| Mar | 1.21 | 1.18 | 0.03 |
| Apr | 2.22 | 2.27 | -0.05 |
| May | 3.29 | 3.24 | 0.05 |
| Jun | 4.30 | 4.41 | -0.11 |
| Jul | 4.38 | 4.26 | 0.12 |
| Aug | 3.55 | 3.49 | 0.06 |
| Sep | 2.89 | 2.89 | 0.00 |
| Oct | 2.58 | 2.56 | 0.02 |
| Nov | 1.07 | 1.04 | 0.03 |
| Dec | 0.76 | 0.85 | -0.09 |
27.50 | 27.34 | 0.16 |