| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.44 | 2.43 | 0.01 |
| Feb | 2.21 | 2.30 | -0.09 |
| Mar | 3.28 | 3.07 | 0.21 |
| Apr | 4.64 | 4.50 | 0.14 |
| May | 4.89 | 5.14 | -0.25 |
| Jun | 4.37 | 4.56 | -0.19 |
| Jul | 4.13 | 3.96 | 0.17 |
| Aug | 3.81 | 3.55 | 0.26 |
| Sep | 3.60 | 3.35 | 0.25 |
| Oct | 3.24 | 3.26 | -0.02 |
| Nov | 3.43 | 3.37 | 0.06 |
| Dec | 2.58 | 2.40 | 0.18 |
42.62 | 41.89 | 0.73 |