| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.24 | 0.06 |
| Feb | 2.80 | 2.75 | 0.05 |
| Mar | 3.82 | 3.69 | 0.13 |
| Apr | 3.40 | 3.35 | 0.05 |
| May | 4.11 | 4.13 | -0.02 |
| Jun | 4.23 | 4.01 | 0.22 |
| Jul | 4.32 | 4.07 | 0.25 |
| Aug | 4.09 | 4.20 | -0.11 |
| Sep | 4.45 | 4.30 | 0.15 |
| Oct | 3.76 | 3.60 | 0.16 |
| Nov | 3.39 | 3.21 | 0.18 |
| Dec | 3.54 | 3.53 | 0.01 |
45.21 | 44.08 | 1.13 |