| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.93 | -0.03 |
| Feb | 1.45 | 1.52 | -0.07 |
| Mar | 2.42 | 2.49 | -0.07 |
| Apr | 3.63 | 3.74 | -0.11 |
| May | 5.40 | 5.66 | -0.26 |
| Jun | 4.86 | 4.94 | -0.08 |
| Jul | 4.18 | 4.27 | -0.09 |
| Aug | 4.18 | 4.19 | -0.01 |
| Sep | 3.52 | 3.76 | -0.24 |
| Oct | 2.88 | 3.02 | -0.14 |
| Nov | 2.02 | 2.12 | -0.10 |
| Dec | 1.47 | 1.54 | -0.07 |
36.91 | 38.18 | -1.27 |