| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.01 | 1.93 | 0.08 |
| Feb | 2.24 | 2.21 | 0.03 |
| Mar | 3.39 | 3.28 | 0.11 |
| Apr | 3.97 | 3.92 | 0.05 |
| May | 5.62 | 5.26 | 0.36 |
| Jun | 4.77 | 4.64 | 0.13 |
| Jul | 3.34 | 3.39 | -0.05 |
| Aug | 2.94 | 2.75 | 0.19 |
| Sep | 4.62 | 4.16 | 0.46 |
| Oct | 4.05 | 3.80 | 0.25 |
| Nov | 2.62 | 2.57 | 0.05 |
| Dec | 2.78 | 2.57 | 0.21 |
42.35 | 40.48 | 1.87 |