| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.77 | 0.03 |
| Feb | 1.17 | 1.07 | 0.10 |
| Mar | 2.17 | 2.16 | 0.01 |
| Apr | 2.56 | 2.42 | 0.14 |
| May | 4.44 | 4.68 | -0.24 |
| Jun | 4.32 | 4.28 | 0.04 |
| Jul | 3.69 | 3.84 | -0.15 |
| Aug | 3.67 | 3.50 | 0.17 |
| Sep | 2.39 | 2.29 | 0.10 |
| Oct | 2.54 | 2.48 | 0.06 |
| Nov | 1.26 | 1.25 | 0.01 |
| Dec | 1.19 | 1.17 | 0.02 |
30.20 | 29.91 | 0.29 |