| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.38 | 3.41 | -0.03 |
| Feb | 3.19 | 3.25 | -0.06 |
| Mar | 4.14 | 4.15 | -0.01 |
| Apr | 4.16 | 3.96 | 0.20 |
| May | 3.65 | 3.47 | 0.18 |
| Jun | 4.18 | 4.08 | 0.10 |
| Jul | 3.63 | 3.63 | 0.00 |
| Aug | 3.62 | 3.71 | -0.09 |
| Sep | 3.93 | 3.76 | 0.17 |
| Oct | 4.61 | 4.75 | -0.14 |
| Nov | 3.74 | 3.63 | 0.11 |
| Dec | 4.31 | 4.44 | -0.13 |
46.54 | 46.24 | 0.30 |