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Why CDP, Arizona

Official LSAD Designation: Why CDP • Census GEOID: 0482670 • Pima County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Why CDP.

Reference Weather Station: AJO, AZ US (ID: USC00020080) • Located 10.8 miles from community center • Elevation: 533.7 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 67.5° 44.9° 56.2° 0.69"
February 70.5° 47.8° 59.2° 0.80"
March 77.1° 51.8° 64.5° 0.76"
April 84.0° 57.3° 70.7° 0.17"
May 92.0° 65.5° 78.8° 0.10"
June 101.1° 74.0° 87.5° 0.08"
July 103.8° 79.7° 91.7° 0.63"
August 103.0° 79.2° 91.1° 1.43"
September 99.1° 74.4° 86.8° 0.81"
October 89.2° 64.2° 76.7° 0.44"
November 77.4° 51.0° 64.2° 0.45"
December 66.6° 43.4° 55.0° 0.62"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station AJO, AZ US (ID: USC00020080) • 10.8 miles from community center .

This is the same reference station used for monthly normals.

Annual mean Annual mean of daily highs Annual mean of daily lows
Annual temperature history at AJO, AZ US Year is the horizontal axis. Annual mean temperature in degrees Fahrenheit is the vertical axis. Dots show recorded years; lines connect consecutive available years only. Missing years are gaps, with no interpolation. Optional dashed lines show annual mean of daily highs and lows. Exact values appear in the data table below. 56.0 65.3 74.5 83.8 93.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2011: Annual mean 72.5°F 2012: Annual mean 74.2°F 2013: Annual mean 72.5°F 2014: Annual mean 74.5°F 2015: Annual mean 73.3°F 2016: Annual mean 74.1°F 2017: Annual mean 74.9°F 2018: Annual mean 74.8°F 2019: Annual mean 72.5°F 2020: Annual mean 75.2°F 2022: Annual mean 74.1°F 2023: Annual mean 74.3°F 2024: Annual mean 75.5°F 2025: Annual mean 76.1°F 2011: Annual mean of daily highs 84.8°F 2012: Annual mean of daily highs 87.0°F 2013: Annual mean of daily highs 85.4°F 2014: Annual mean of daily highs 87.2°F 2015: Annual mean of daily highs 85.9°F 2016: Annual mean of daily highs 87.4°F 2017: Annual mean of daily highs 88.4°F 2018: Annual mean of daily highs 87.3°F 2019: Annual mean of daily highs 85.6°F 2020: Annual mean of daily highs 88.8°F 2022: Annual mean of daily highs 87.4°F 2023: Annual mean of daily highs 87.9°F 2024: Annual mean of daily highs 89.1°F 2025: Annual mean of daily highs 89.7°F 2011: Annual mean of daily lows 60.3°F 2012: Annual mean of daily lows 61.3°F 2013: Annual mean of daily lows 59.6°F 2014: Annual mean of daily lows 61.8°F 2015: Annual mean of daily lows 60.8°F 2016: Annual mean of daily lows 60.9°F 2017: Annual mean of daily lows 61.4°F 2018: Annual mean of daily lows 62.2°F 2019: Annual mean of daily lows 59.5°F 2020: Annual mean of daily lows 61.6°F 2022: Annual mean of daily lows 60.9°F 2023: Annual mean of daily lows 60.6°F 2024: Annual mean of daily lows 61.9°F 2025: Annual mean of daily lows 62.5°F

Source: NOAA NCEI Global Summary of the Year.

Annual temperature data table (°F)
Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year Annual mean (°F) Annual mean of daily highs (°F) Annual mean of daily lows (°F)
2010 Unavailable Unavailable Unavailable
2011 72.5 84.8 60.3
2012 74.2 87.0 61.3
2013 72.5 85.4 59.6
2014 74.5 87.2 61.8
2015 73.3 85.9 60.8
2016 74.1 87.4 60.9
2017 74.9 88.4 61.4
2018 74.8 87.3 62.2
2019 72.5 85.6 59.5
2020 75.2 88.8 61.6
2021 Unavailable Unavailable Unavailable
2022 74.1 87.4 60.9
2023 74.3 87.9 60.6
2024 75.5 89.1 61.9
2025 76.1 89.7 62.5
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.