| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.67 | 2.60 | 0.07 |
| Feb | 2.51 | 2.36 | 0.15 |
| Mar | 4.08 | 4.04 | 0.04 |
| Apr | 4.66 | 4.86 | -0.20 |
| May | 5.60 | 5.52 | 0.08 |
| Jun | 4.12 | 4.13 | -0.01 |
| Jul | 3.75 | 4.26 | -0.51 |
| Aug | 3.21 | 3.10 | 0.11 |
| Sep | 4.22 | 4.27 | -0.05 |
| Oct | 3.75 | 3.64 | 0.11 |
| Nov | 3.90 | 3.90 | 0.00 |
| Dec | 2.98 | 3.03 | -0.05 |
45.45 | 45.71 | -0.26 |