| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.74 | 0.03 |
| Feb | 1.12 | 1.11 | 0.01 |
| Mar | 2.22 | 2.16 | 0.06 |
| Apr | 2.48 | 2.48 | 0.00 |
| May | 4.70 | 4.52 | 0.18 |
| Jun | 4.27 | 4.47 | -0.20 |
| Jul | 3.58 | 3.55 | 0.03 |
| Aug | 3.68 | 3.41 | 0.27 |
| Sep | 2.33 | 2.32 | 0.01 |
| Oct | 2.52 | 2.31 | 0.21 |
| Nov | 1.31 | 1.23 | 0.08 |
| Dec | 1.13 | 1.04 | 0.09 |
30.11 | 29.34 | 0.77 |