| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.72 | 0.93 | -0.21 |
| Feb | 0.76 | 0.87 | -0.11 |
| Mar | 1.56 | 1.67 | -0.11 |
| Apr | 2.86 | 3.09 | -0.23 |
| May | 4.12 | 4.36 | -0.24 |
| Jun | 4.40 | 4.61 | -0.21 |
| Jul | 4.18 | 4.29 | -0.11 |
| Aug | 4.28 | 4.21 | 0.07 |
| Sep | 3.22 | 3.34 | -0.12 |
| Oct | 2.78 | 2.78 | 0.00 |
| Nov | 1.54 | 1.68 | -0.14 |
| Dec | 1.01 | 1.30 | -0.29 |
31.43 | 33.13 | -1.70 |