| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.42 | 3.41 | 0.01 | 
| Feb | 2.37 | 2.58 | -0.21 | 
| Mar | 2.86 | 3.03 | -0.17 | 
| Apr | 3.58 | 3.58 | 0.00 | 
| May | 3.40 | 3.53 | -0.13 | 
| Jun | 3.75 | 3.89 | -0.14 | 
| Jul | 3.92 | 3.71 | 0.21 | 
| Aug | 3.55 | 3.52 | 0.03 | 
| Sep | 4.13 | 4.09 | 0.04 | 
| Oct | 4.04 | 4.18 | -0.14 | 
| Nov | 3.69 | 3.93 | -0.24 | 
| Dec | 3.74 | 3.80 | -0.06 | 
| 42.45 | 43.25 | -0.80 |