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Amador County Climate

Amador County, California

NOAA NCEI 1991-2020 Climate Normals
JanFebMarAprMayJunJulAugSepOctNovDec61.0°AVG °F

Avg Annual Temp

61.0°F

Annual Precip

34.8"

Annual Snowfall

0.3"

Extreme Heat Days

75

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
6.4"
6.0"
5.6"
3.0"
1.9"
0.4"
0.0"
0.1"
0.3"
1.9"
3.4"
5.9"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Growing Season & Gardening

USDA Hardiness Zone

9a

Minimum winter temperature range for plant survival

Growing Degree Days

4,486

Excellent for heat-loving crops

Last spring frost (32°F): 03/04
First fall frost (32°F): 12/11

Seasonal Overview

Comfort ZoneSpring52°63°10.5"Summer71°78°0.5"Fall54°73°5.5"Winter47°50°18.3"20°40°60°80°100°

National Comparison

Warmer than 74% of US counties
Wetter than 34% of US counties
More seasonal variation than 7% of US counties

7-Day Outlook

Forecast

Current Conditions

Air Quality

Safety

Weather Alerts

Climate Advisory: Amador County

Climate Verdict

Amador County has a warm, averaging 61.0°F year-round, moderate rainfall of 34.8 inches per year, significant summer heat with 74.7 days annually above 90°F, light snow averaging 0.3 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.

Seasonal Breakdown

Winters are mild, with January temperatures averaging 47.0°F. summers are warm — July averages 78.0°F. The 31°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.

Outdoor & Gardening Guidance

The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.

Regional Context

Amador County closely matches the California statewide average temperature of 58.7°F, it is also noticeably wetter, receiving 9.0 inches more precipitation than the state average, the county experiences 16.02907503706613 more extreme heat days than the state average.

Climate Profile

About Amador County Weather

A Warm Foothill Climate Above National Averages

Amador County's 61.0°F annual average is significantly higher than the U.S. median temperature. It features a warm, interior climate with dry summers and wet winters.

Warmer and Wetter Than State Benchmarks

The county is warmer than the California average of 58.7°F and wetter than the state average of 25.8 inches. It receives 34.8 inches of rain annually, mostly during the cooler months.

Warmer Than Surrounding Highland Counties

At 61.0°F, Amador is warmer than neighboring Calaveras County, which averages 56.4°F. It also records far less snow than its neighbors to the east, averaging only 0.3 inches.

Intense Summer Heat and Mild Winters

The county faces 75 extreme heat days per year with a July average of 78.0°F. Winters are mild and wet, averaging 47.9°F with almost no snowfall.

Prioritize Cooling and Rain Infrastructure

High-capacity HVAC systems are necessary to manage 75 days over 90°F. Homeowners should also ensure proper drainage to handle the substantial 34.8 inches of annual rainfall.

Frequently Asked Questions

What is the average temperature in Amador County?
The average annual temperature in Amador County, CA is 61.0°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Amador County get?
Amador County receives an average of 34.8 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Amador County?
Yes, Amador County receives an average of 0.3 inches of snowfall per year according to NOAA climate normals.
How hot does Amador County get in summer?
The average summer temperature (June-August) in Amador County is 75.4°F. The county experiences an average of 75 days per year above 90°F.
How cold are winters in Amador County?
The average winter temperature (December-February) in Amador County is 47.9°F. January, typically the coldest month, averages 47.0°F.

Track your own weather in Amador County

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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.

Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor
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