| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.87 | 0.88 | -0.01 |
| Feb | 0.93 | 0.93 | 0.00 |
| Mar | 1.80 | 1.74 | 0.06 |
| Apr | 3.12 | 2.94 | 0.18 |
| May | 4.30 | 4.37 | -0.07 |
| Jun | 5.35 | 5.11 | 0.24 |
| Jul | 4.47 | 4.07 | 0.40 |
| Aug | 4.54 | 4.57 | -0.03 |
| Sep | 3.61 | 3.42 | 0.19 |
| Oct | 2.63 | 2.49 | 0.14 |
| Nov | 1.60 | 1.63 | -0.03 |
| Dec | 1.14 | 1.24 | -0.10 |
34.36 | 33.39 | 0.97 |