| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.48 | 1.54 | -0.06 |
| Feb | 1.54 | 1.61 | -0.07 |
| Mar | 2.17 | 2.20 | -0.03 |
| Apr | 3.76 | 3.92 | -0.16 |
| May | 4.24 | 4.43 | -0.19 |
| Jun | 5.64 | 5.48 | 0.16 |
| Jul | 4.51 | 4.50 | 0.01 |
| Aug | 4.11 | 4.21 | -0.10 |
| Sep | 3.62 | 3.58 | 0.04 |
| Oct | 2.95 | 2.90 | 0.05 |
| Nov | 2.29 | 2.26 | 0.03 |
| Dec | 1.66 | 1.74 | -0.08 |
37.97 | 38.37 | -0.40 |