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Caldwell city, Idaho

Official LSAD Designation: Caldwell city • Census GEOID: 1612250 • Canyon County

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Caldwell city.

Reference Weather Station: NAMPA SUGAR FACTORY, ID US (ID: USC00106305) • Located 5.2 miles from community center • Elevation: 752.9 m
Month Average High (°F) Average Low (°F) Mean Temp (°F) Precipitation (in)
January 39.5° 23.0° 31.2° 1.37"
February 47.2° 26.0° 36.6° 1.04"
March 57.4° 31.6° 44.5° 1.26"
April 64.5° 36.1° 50.3° 1.06"
May 73.9° 44.0° 58.9° 1.37"
June 82.8° 51.0° 66.9° 0.73"
July 93.3° 57.3° 75.3° 0.26"
August 91.6° 55.5° 73.6° 0.20"
September 81.0° 46.5° 63.8° 0.36"
October 66.6° 36.5° 51.5° 0.80"
November 50.7° 28.4° 39.5° 1.17"
December 40.0° 22.8° 31.4° 1.39"

Annual Temperature History

2010–2025, completed calendar years only.

NOAA station NAMPA SUGAR FACTORY, ID US (ID: USC00106305) • 5.2 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 NAMPA SUGAR FACTORY, ID 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. 34.0 43.3 52.5 61.8 71.0 2010 2014 2018 2021 2025 Year Annual mean temperature (°F) 2010: Annual mean 51.8°F 2011: Annual mean 50.5°F 2012: Annual mean 53.7°F 2014: Annual mean 53.3°F 2010: Annual mean of daily highs 64.8°F 2011: Annual mean of daily highs 63.9°F 2012: Annual mean of daily highs 67.2°F 2014: Annual mean of daily highs 66.2°F 2010: Annual mean of daily lows 38.7°F 2011: Annual mean of daily lows 37.2°F 2012: Annual mean of daily lows 40.2°F 2014: Annual mean of daily lows 40.4°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 51.8 64.8 38.7
2011 50.5 63.9 37.2
2012 53.7 67.2 40.2
2013 Unavailable Unavailable Unavailable
2014 53.3 66.2 40.4
2015 Unavailable Unavailable Unavailable
2016 Unavailable Unavailable Unavailable
2017 Unavailable Unavailable Unavailable
2018 Unavailable Unavailable Unavailable
2019 Unavailable Unavailable Unavailable
2020 Unavailable Unavailable Unavailable
2021 Unavailable Unavailable Unavailable
2022 Unavailable Unavailable Unavailable
2023 Unavailable Unavailable Unavailable
2024 Unavailable Unavailable Unavailable
2025 Unavailable Unavailable Unavailable
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.