| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.73 | -0.03 |
| Feb | 3.16 | 3.32 | -0.16 |
| Mar | 4.11 | 4.30 | -0.19 |
| Apr | 3.88 | 4.16 | -0.28 |
| May | 4.07 | 4.10 | -0.03 |
| Jun | 4.76 | 4.76 | 0.00 |
| Jul | 4.69 | 4.48 | 0.21 |
| Aug | 4.58 | 4.62 | -0.04 |
| Sep | 4.86 | 4.87 | -0.01 |
| Oct | 5.01 | 5.38 | -0.37 |
| Nov | 3.94 | 4.04 | -0.10 |
| Dec | 4.52 | 4.80 | -0.28 |
51.28 | 52.56 | -1.28 |