| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.11 | 3.23 | -0.12 |
| Feb | 2.95 | 3.11 | -0.16 |
| Mar | 3.94 | 4.07 | -0.13 |
| Apr | 3.88 | 3.95 | -0.07 |
| May | 4.45 | 4.56 | -0.11 |
| Jun | 4.15 | 4.24 | -0.09 |
| Jul | 4.33 | 4.54 | -0.21 |
| Aug | 3.21 | 3.33 | -0.12 |
| Sep | 3.18 | 3.26 | -0.08 |
| Oct | 2.99 | 3.00 | -0.01 |
| Nov | 2.64 | 2.80 | -0.16 |
| Dec | 3.42 | 3.50 | -0.08 |
42.25 | 43.59 | -1.34 |