Viewing Station: AZ-PM-148 : Tucson 5.0 NNW
Apr 20, 2010 - May 21, 20265,638 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.27"
May 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
0.12"
Departure from Normal
0.15" : 234% of Normal
Year-To-Date: 2.58"
Jan 1 to May 21, 2026(140 of 141 days covered by obs)
NOAA Normal
3.05"
Departure from Normal
-0.47" : 85% of Normal
Water Year-To-Date: 6.21"
Oct 1, 2025 to May 21, 2026(232 of 233 days covered by obs)
NOAA Normal
5.40"
Departure from Normal
0.81" : 115% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.02
1.00
0.02
Feb
0.98
0.96
0.02
Mar
0.65
0.62
0.03
Apr
0.28
0.28
0.00
May
0.17
0.15
0.02
Jun
0.19
0.27
-0.08
Jul
1.85
1.81
0.04
Aug
2.06
2.07
-0.01
Sep
1.13
1.26
-0.13
Oct
0.61
0.63
-0.02
Nov
0.67
0.61
0.06
Dec
1.07
1.04
0.03
10.68
10.70
-0.02