| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.25 | 4.22 | 0.03 |
| Feb | 4.16 | 4.12 | 0.04 |
| Mar | 4.48 | 4.54 | -0.06 |
| Apr | 3.61 | 3.73 | -0.12 |
| May | 2.74 | 2.54 | 0.20 |
| Jun | 4.20 | 4.21 | -0.01 |
| Jul | 4.61 | 4.54 | 0.07 |
| Aug | 4.35 | 4.19 | 0.16 |
| Sep | 3.60 | 3.42 | 0.18 |
| Oct | 2.69 | 2.81 | -0.12 |
| Nov | 3.24 | 3.23 | 0.01 |
| Dec | 4.53 | 4.48 | 0.05 |
46.46 | 46.03 | 0.43 |