| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.46 | 1.54 | -0.08 |
| Feb | 1.51 | 1.60 | -0.09 |
| Mar | 2.16 | 2.20 | -0.04 |
| Apr | 3.73 | 3.90 | -0.17 |
| May | 4.21 | 4.43 | -0.22 |
| Jun | 5.58 | 5.46 | 0.12 |
| Jul | 4.49 | 4.53 | -0.04 |
| Aug | 4.09 | 4.18 | -0.09 |
| Sep | 3.61 | 3.56 | 0.05 |
| Oct | 2.91 | 2.89 | 0.02 |
| Nov | 2.26 | 2.25 | 0.01 |
| Dec | 1.62 | 1.76 | -0.14 |
37.63 | 38.30 | -0.67 |