| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 8.73 | 8.55 | 0.18 |
| Feb | 6.63 | 6.49 | 0.14 |
| Mar | 6.50 | 6.43 | 0.07 |
| Apr | 4.01 | 4.03 | -0.02 |
| May | 2.20 | 2.00 | 0.20 |
| Jun | 0.85 | 0.89 | -0.04 |
| Jul | 0.17 | 0.15 | 0.02 |
| Aug | 0.17 | 0.16 | 0.01 |
| Sep | 0.67 | 0.70 | -0.03 |
| Oct | 3.23 | 3.06 | 0.17 |
| Nov | 6.10 | 6.31 | -0.21 |
| Dec | 10.26 | 9.99 | 0.27 |
49.52 | 48.76 | 0.76 |