| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.67 | 0.66 | 0.01 |
| Feb | 0.67 | 0.70 | -0.03 |
| Mar | 1.26 | 1.16 | 0.10 |
| Apr | 2.23 | 2.16 | 0.07 |
| May | 3.34 | 3.42 | -0.08 |
| Jun | 4.26 | 4.27 | -0.01 |
| Jul | 4.31 | 4.20 | 0.11 |
| Aug | 3.45 | 3.23 | 0.22 |
| Sep | 2.95 | 2.86 | 0.09 |
| Oct | 2.64 | 2.63 | 0.01 |
| Nov | 1.19 | 1.07 | 0.12 |
| Dec | 0.86 | 0.90 | -0.04 |
27.83 | 27.26 | 0.57 |