| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.68 | -0.17 |
| Feb | 3.00 | 2.99 | 0.01 |
| Mar | 4.13 | 4.23 | -0.10 |
| Apr | 3.64 | 3.63 | 0.01 |
| May | 3.71 | 3.64 | 0.07 |
| Jun | 4.26 | 4.16 | 0.10 |
| Jul | 4.70 | 4.58 | 0.12 |
| Aug | 4.48 | 4.27 | 0.21 |
| Sep | 4.86 | 5.05 | -0.19 |
| Oct | 3.42 | 3.49 | -0.07 |
| Nov | 3.26 | 3.32 | -0.06 |
| Dec | 3.53 | 3.58 | -0.05 |
46.50 | 46.62 | -0.12 |