| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.40 | 1.34 | 0.06 |
| Feb | 1.78 | 1.75 | 0.03 |
| Mar | 2.57 | 2.51 | 0.06 |
| Apr | 4.01 | 3.96 | 0.05 |
| May | 5.61 | 5.61 | 0.00 |
| Jun | 5.25 | 5.44 | -0.19 |
| Jul | 4.50 | 4.73 | -0.23 |
| Aug | 4.17 | 3.99 | 0.18 |
| Sep | 4.10 | 4.11 | -0.01 |
| Oct | 3.23 | 3.30 | -0.07 |
| Nov | 2.38 | 2.31 | 0.07 |
| Dec | 1.74 | 1.65 | 0.09 |
40.74 | 40.70 | 0.04 |