| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.60 | 2.74 | -0.14 |
| Feb | 2.12 | 2.28 | -0.16 |
| Mar | 2.74 | 2.83 | -0.09 |
| Apr | 3.70 | 3.83 | -0.13 |
| May | 3.76 | 3.87 | -0.11 |
| Jun | 4.10 | 4.11 | -0.01 |
| Jul | 3.73 | 3.91 | -0.18 |
| Aug | 3.53 | 3.59 | -0.06 |
| Sep | 3.44 | 3.50 | -0.06 |
| Oct | 3.21 | 3.27 | -0.06 |
| Nov | 2.84 | 2.91 | -0.07 |
| Dec | 2.57 | 2.72 | -0.15 |
38.34 | 39.56 | -1.22 |