Graham County Climate
Graham County, Arizona
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
62.2°F
Annual Precip
11.4"
Annual Snowfall
6.9"
Extreme Heat Days
113
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,254
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Graham County
Climate Verdict
Graham County has a warm, averaging 62.2°F year-round, arid conditions receiving just 11.4 inches of precipitation annually, significant summer heat with 112.92500000000001 days annually above 90°F, light snow averaging 6.9 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 43.5°F. summers are hot, with July averaging 81.8°F. The 38°F seasonal variation provides noticeable but manageable change. December is typically the coldest month and July the warmest.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Graham County closely matches the Arizona statewide average temperature of 63.5°F.
Climate Profile
About Graham County Weather
Dry Heat in the Upper Tiers
Graham County averages 62.2°F, placing it in the upper tier of temperatures compared to the national median. It receives a sparse 11.4 inches of rain annually.
Near the Arizona State Median
The county's average temperature of 62.2°F is just below the statewide average of 63.5°F. It experiences significantly more extreme heat days than northern counties like Coconino.
Intense Heat Relative to Gila
Graham records 113 days over 90°F, which is more intense than neighboring Gila's 104 days. However, it is much drier than Greenlee, receiving about 4 inches less rain annually.
Four Months of Extreme Heat
Summers are long and hot, featuring 113 days of extreme heat and a July average of 81.8°F. Winters stay temperate, averaging 44.6°F with a light 6.9 inches of annual snow.
Prioritize Efficient Summer Cooling
Prioritize water conservation and desert-landscaping for your property to handle the low rainfall. Effective air conditioning is vital for the 113 days of extreme heat.
Frequently Asked Questions
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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.