Viewing Station: AZ-PM-51 : Tucson 2.5 WNW
Sep 1, 2009 - May 21, 20265,906 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.38"
May 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
0.12"
Departure from Normal
0.26" : 330% of Normal
Year-To-Date: 2.73"
Jan 1 to May 21, 2026(141 of 141 days covered by obs)
NOAA Normal
3.07"
Departure from Normal
-0.34" : 89% of Normal
Water Year-To-Date: 6.73"
Oct 1, 2025 to May 21, 2026(233 of 233 days covered by obs)
NOAA Normal
5.48"
Departure from Normal
1.25" : 123% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.02
1.02
0.00
Feb
0.99
0.95
0.04
Mar
0.66
0.66
0.00
Apr
0.28
0.28
0.00
May
0.17
0.16
0.01
Jun
0.20
0.26
-0.06
Jul
1.94
2.10
-0.16
Aug
2.12
2.27
-0.15
Sep
1.15
1.28
-0.13
Oct
0.62
0.66
-0.04
Nov
0.68
0.61
0.07
Dec
1.11
1.07
0.04
10.94
11.32
-0.38