Viewing Station: AZ-PM-181 : Tucson 15.5 NW
May 1, 2011 - May 21, 20265,382 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.25"
May 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
0.16"
Departure from Normal
0.09" : 154% of Normal
Year-To-Date: 2.47"
Jan 1 to May 21, 2026(141 of 141 days covered by obs)
NOAA Normal
3.12"
Departure from Normal
-0.65" : 79% of Normal
Water Year-To-Date: 6.13"
Oct 1, 2025 to May 21, 2026(233 of 233 days covered by obs)
NOAA Normal
5.49"
Departure from Normal
0.64" : 112% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.91
0.98
-0.07
Feb
1.07
1.07
0.00
Mar
0.66
0.70
-0.04
Apr
0.32
0.28
0.04
May
0.24
0.14
0.10
Jun
0.15
0.24
-0.09
Jul
1.59
1.79
-0.20
Aug
2.09
2.13
-0.04
Sep
1.13
1.02
0.11
Oct
0.57
0.68
-0.11
Nov
0.70
0.65
0.05
Dec
1.10
1.11
-0.01
10.53
10.79
-0.26