Viewing Station: AZ-PM-146 : Tucson 11.8 ENE
Apr 22, 2010 - May 21, 20264,644 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.58"
May 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
0.16"
Departure from Normal
0.42" : 372% of Normal
Year-To-Date: 3.47"
Jan 1 to May 21, 2026(141 of 141 days covered by obs)
NOAA Normal
3.96"
Departure from Normal
-0.49" : 88% of Normal
Water Year-To-Date: 6.60"
Oct 1, 2025 to May 21, 2026(232 of 233 days covered by obs)
NOAA Normal
6.91"
Departure from Normal
-0.31" : 96% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.28
1.44
-0.16
Feb
1.29
1.27
0.02
Mar
0.87
0.85
0.02
Apr
0.36
0.31
0.05
May
0.23
0.19
0.04
Jun
0.29
0.38
-0.09
Jul
2.49
2.09
0.40
Aug
2.70
2.82
-0.12
Sep
1.61
1.38
0.23
Oct
0.70
0.82
-0.12
Nov
0.83
0.71
0.12
Dec
1.42
1.37
0.05
14.07
13.63
0.44