| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.65 | 2.49 | 0.16 |
| Feb | 2.36 | 2.31 | 0.05 |
| Mar | 2.99 | 2.88 | 0.11 |
| Apr | 3.22 | 3.15 | 0.07 |
| May | 3.46 | 3.29 | 0.17 |
| Jun | 4.20 | 4.31 | -0.11 |
| Jul | 4.06 | 4.14 | -0.08 |
| Aug | 3.83 | 3.93 | -0.10 |
| Sep | 3.79 | 3.60 | 0.19 |
| Oct | 3.96 | 4.01 | -0.05 |
| Nov | 2.89 | 2.76 | 0.13 |
| Dec | 3.24 | 3.30 | -0.06 |
40.65 | 40.17 | 0.48 |