| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.57 | 2.73 | -0.16 |
| Feb | 2.25 | 2.38 | -0.13 |
| Mar | 2.61 | 2.74 | -0.13 |
| Apr | 3.19 | 3.39 | -0.20 |
| May | 3.60 | 3.78 | -0.18 |
| Jun | 3.99 | 4.86 | -0.87 |
| Jul | 4.51 | 4.69 | -0.18 |
| Aug | 3.96 | 4.58 | -0.62 |
| Sep | 3.41 | 3.85 | -0.44 |
| Oct | 4.27 | 4.48 | -0.21 |
| Nov | 3.01 | 3.30 | -0.29 |
| Dec | 3.14 | 3.48 | -0.34 |
40.51 | 44.26 | -3.75 |