| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.74 | 0.00 |
| Feb | 0.83 | 0.75 | 0.08 |
| Mar | 1.77 | 1.61 | 0.16 |
| Apr | 3.26 | 3.13 | 0.13 |
| May | 4.52 | 4.30 | 0.22 |
| Jun | 4.88 | 4.85 | 0.03 |
| Jul | 3.85 | 3.91 | -0.06 |
| Aug | 3.95 | 3.72 | 0.23 |
| Sep | 3.24 | 3.14 | 0.10 |
| Oct | 2.48 | 2.36 | 0.12 |
| Nov | 1.51 | 1.32 | 0.19 |
| Dec | 0.95 | 0.94 | 0.01 |
31.98 | 30.77 | 1.21 |