Historical Weather in Nampa, ID

See 55+ years of weather history for any date in Nampa going back to 1970.

Part of Idaho weather history

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Searching weather history for Nampa, ID

Today in Nampa Weather HistorySee records, averages, and 55+ years of data for today's date

Monthly Climate Averages

Historical temperature and precipitation averages for Nampa, ID, based on 55+ years of weather data.

Warmest MonthJulyAvg High: 92°F / Low: 58°F
Coldest MonthJanuaryAvg High: 37°F / Low: 22°F
Jan
37°/ 22°
💧 3.5"
❄️ 1.5"
Feb
46°/ 26°
💧 3.1"
❄️ 1.3"
Mar
57°/ 32°
💧 3.3"
❄️ 0.7"
Apr
65°/ 37°
💧 3.4"
❄️ 0.3"
May
74°/ 45°
💧 3.9"
Jun
83°/ 52°
💧 3.5"
Jul
92°/ 58°
💧 3.3"
Aug
91°/ 55°
💧 3.2"
Sep
80°/ 46°
💧 4.1"
Oct
67°/ 37°
💧 3.6"
❄️ 1.0"
Nov
49°/ 29°
💧 3.1"
❄️ 1.6"
Dec
39°/ 22°
💧 3.3"
❄️ 1.4"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

Nampa Temperature Records

  • Record High: The hottest temperature ever recorded in Nampa, ID is 112°F, set on July 23, 2003.
  • Record Low: The coldest temperature ever recorded in Nampa, ID is -25°F, set on December 22, 1990.
  • Data Coverage: Based on 57 years of data from NOAA weather station: EMMETT 2 E.

All-Time Record High

112°F
July 23, 2003

All-Time Record Low

-25°F
December 22, 1990

Monthly Temperature Records in Nampa

MonthRecord HighRecord Low
January66°F(2024)-18°F(1979)
February71°F(1992)-16°F(1979)
March82°F(1978)6°F(1971)
April94°F(1977)13°F(1999)
May100°F(2025)21°F(2002)
June110°F(2015)27°F(2002)
July112°F(2003)35°F(1999)
August110°F(2018)32°F(1999)
September104°F(1998)19°F(1999)
October95°F(1992)6°F(2002)
November82°F(2006)-10°F(1985)
December66°F(2003)-25°F(1990)
Idaho State RecordsSee all-time records for the entire state
Nampa Snow RecordsSee the top 10 snowiest days ever recorded