| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.53 | 3.65 | -0.12 |
| Feb | 3.43 | 3.46 | -0.03 |
| Mar | 4.64 | 4.60 | 0.04 |
| Apr | 5.14 | 4.96 | 0.18 |
| May | 5.12 | 5.26 | -0.14 |
| Jun | 4.19 | 4.59 | -0.40 |
| Jul | 4.18 | 4.08 | 0.10 |
| Aug | 3.22 | 3.03 | 0.19 |
| Sep | 3.80 | 3.70 | 0.10 |
| Oct | 3.51 | 3.58 | -0.07 |
| Nov | 3.71 | 3.70 | 0.01 |
| Dec | 4.07 | 4.20 | -0.13 |
48.54 | 48.81 | -0.27 |