| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.59 | -0.09 |
| Feb | 2.69 | 2.93 | -0.24 |
| Mar | 4.02 | 4.10 | -0.08 |
| Apr | 3.95 | 4.01 | -0.06 |
| May | 3.87 | 3.95 | -0.08 |
| Jun | 4.61 | 4.84 | -0.23 |
| Jul | 4.28 | 4.44 | -0.16 |
| Aug | 4.40 | 4.60 | -0.20 |
| Sep | 4.40 | 4.40 | 0.00 |
| Oct | 4.60 | 4.63 | -0.03 |
| Nov | 3.59 | 3.75 | -0.16 |
| Dec | 4.25 | 4.50 | -0.25 |
48.16 | 49.74 | -1.58 |