| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.65 | 3.72 | -0.07 |
| Feb | 3.16 | 3.21 | -0.05 |
| Mar | 3.93 | 4.06 | -0.13 |
| Apr | 3.64 | 3.63 | 0.01 |
| May | 3.51 | 3.45 | 0.06 |
| Jun | 4.07 | 4.16 | -0.09 |
| Jul | 3.73 | 3.76 | -0.03 |
| Aug | 4.17 | 4.00 | 0.17 |
| Sep | 3.62 | 3.73 | -0.11 |
| Oct | 3.11 | 3.14 | -0.03 |
| Nov | 3.27 | 3.32 | -0.05 |
| Dec | 3.63 | 3.75 | -0.12 |
43.49 | 43.93 | -0.44 |