| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.85 | 1.95 | -0.10 |
| Feb | 1.76 | 1.89 | -0.13 |
| Mar | 2.23 | 2.27 | -0.04 |
| Apr | 3.74 | 3.70 | 0.04 |
| May | 4.31 | 4.45 | -0.14 |
| Jun | 4.50 | 4.30 | 0.20 |
| Jul | 3.80 | 3.69 | 0.11 |
| Aug | 3.80 | 3.76 | 0.04 |
| Sep | 3.34 | 3.38 | -0.04 |
| Oct | 3.19 | 3.26 | -0.07 |
| Nov | 2.44 | 2.39 | 0.05 |
| Dec | 2.05 | 2.08 | -0.03 |
37.01 | 37.12 | -0.11 |