| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.63 | 0.03 |
| Feb | 0.81 | 0.79 | 0.02 |
| Mar | 1.69 | 1.56 | 0.13 |
| Apr | 2.44 | 2.51 | -0.07 |
| May | 2.68 | 2.79 | -0.11 |
| Jun | 1.84 | 1.73 | 0.11 |
| Jul | 2.00 | 1.84 | 0.16 |
| Aug | 1.84 | 1.65 | 0.19 |
| Sep | 1.43 | 1.29 | 0.14 |
| Oct | 1.20 | 1.28 | -0.08 |
| Nov | 0.95 | 0.87 | 0.08 |
| Dec | 0.64 | 0.66 | -0.02 |
18.18 | 17.60 | 0.58 |