| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.43 | 3.59 | -0.16 |
| Feb | 2.81 | 2.87 | -0.06 |
| Mar | 4.18 | 4.40 | -0.22 |
| Apr | 3.66 | 3.63 | 0.03 |
| May | 3.57 | 3.69 | -0.12 |
| Jun | 4.23 | 4.30 | -0.07 |
| Jul | 4.78 | 4.67 | 0.11 |
| Aug | 4.45 | 4.76 | -0.31 |
| Sep | 4.09 | 4.11 | -0.02 |
| Oct | 3.85 | 4.00 | -0.15 |
| Nov | 3.20 | 3.23 | -0.03 |
| Dec | 4.19 | 4.36 | -0.17 |
46.44 | 47.61 | -1.17 |