| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.42 | 0.43 | -0.01 |
| Feb | 0.58 | 0.58 | 0.00 |
| Mar | 1.01 | 1.12 | -0.11 |
| Apr | 2.07 | 2.14 | -0.07 |
| May | 3.09 | 2.85 | 0.24 |
| Jun | 3.20 | 3.16 | 0.04 |
| Jul | 2.17 | 2.20 | -0.03 |
| Aug | 1.92 | 1.78 | 0.14 |
| Sep | 1.42 | 1.46 | -0.04 |
| Oct | 1.40 | 1.50 | -0.10 |
| Nov | 0.69 | 0.68 | 0.01 |
| Dec | 0.44 | 0.52 | -0.08 |
18.41 | 18.42 | -0.01 |