| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.54 | -0.04 |
| Feb | 2.81 | 2.86 | -0.05 |
| Mar | 4.00 | 4.13 | -0.13 |
| Apr | 3.64 | 3.81 | -0.17 |
| May | 3.58 | 3.58 | 0.00 |
| Jun | 4.06 | 4.28 | -0.22 |
| Jul | 4.31 | 4.45 | -0.14 |
| Aug | 4.03 | 4.11 | -0.08 |
| Sep | 4.63 | 4.80 | -0.17 |
| Oct | 3.13 | 3.19 | -0.06 |
| Nov | 3.38 | 3.35 | 0.03 |
| Dec | 3.35 | 3.48 | -0.13 |
44.42 | 45.58 | -1.16 |