| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.30 | 1.27 | 0.03 |
| Feb | 1.67 | 1.61 | 0.06 |
| Mar | 2.41 | 2.33 | 0.08 |
| Apr | 3.76 | 3.72 | 0.04 |
| May | 5.46 | 5.48 | -0.02 |
| Jun | 5.13 | 5.13 | 0.00 |
| Jul | 4.39 | 4.49 | -0.10 |
| Aug | 4.24 | 4.35 | -0.11 |
| Sep | 3.85 | 3.88 | -0.03 |
| Oct | 2.98 | 2.87 | 0.11 |
| Nov | 2.26 | 2.23 | 0.03 |
| Dec | 1.64 | 1.63 | 0.01 |
39.09 | 38.99 | 0.10 |