Viewing Station: AZ-PM-160 : Tucson 10.3 NNW
Jun 28, 2010 - May 21, 20265,794 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.34"
May 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
0.12"
Departure from Normal
0.22" : 295% of Normal
Year-To-Date: 2.57"
Jan 1 to May 21, 2026(141 of 141 days covered by obs)
NOAA Normal
3.35"
Departure from Normal
-0.78" : 77% of Normal
Water Year-To-Date: 5.60"
Oct 1, 2025 to May 21, 2026(231 of 233 days covered by obs)
NOAA Normal
5.88"
Departure from Normal
-0.28" : 95% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.10
1.03
0.07
Feb
1.08
1.01
0.07
Mar
0.76
0.70
0.06
Apr
0.29
0.28
0.01
May
0.17
0.17
0.00
Jun
0.18
0.27
-0.09
Jul
1.79
1.93
-0.14
Aug
2.09
2.27
-0.18
Sep
1.18
1.13
0.05
Oct
0.60
0.64
-0.04
Nov
0.73
0.67
0.06
Dec
1.20
1.07
0.13
11.17
11.17
0.00