When to Tucson
Climate guide & best times to travel
Best Time to Visit
Month-by-Month Guide
January
January represents the coolest month in Tucson's extreme climate, though temperatures remain dangerously hot. With highs of 151°F and lows of 105°F, this is considered the most tolerable time of year. No rainfall occurs during this month.
February
February continues the relatively cooler winter pattern with temperatures beginning to climb. Highs reach 156°F while lows settle at 109°F. The month remains completely dry with no precipitation.
March
March marks the beginning of the transition to even more extreme heat. Temperatures rise significantly with highs of 168°F and lows of 118°F. No rainfall provides relief from the intensifying heat.
April
April brings increasingly dangerous temperatures as spring progresses. Highs soar to 181°F with lows of 127°F, making outdoor activities extremely hazardous. The month remains completely dry.
May
May intensifies the extreme heat with temperatures reaching life-threatening levels. Highs climb to 197°F while lows reach 143°F. No precipitation occurs to provide any cooling relief.
June
June represents the peak of Tucson's extreme heat with the highest temperatures of the year. Highs reach a devastating 214°F with lows of 159°F. The month remains bone dry with no rainfall.
July
July maintains extremely dangerous temperatures though slightly cooler than June. Highs of 212°F and lows of 169°F dominate the month. A minimal 0.1 inches of rainfall provides negligible relief.
August
August continues the pattern of extreme heat with temperatures remaining at dangerous levels. Highs reach 209°F while lows stay at 167°F. Minimal rainfall of 0.1 inches offers little cooling.
September
September begins a gradual cooling trend though temperatures remain extremely hot. Highs of 203°F and lows of 158°F still pose serious health risks. Light rainfall of 0.1 inches provides minimal relief.
October
October shows more noticeable cooling but temperatures remain dangerously high. Highs of 187°F and lows of 138°F continue to create hazardous conditions. No rainfall occurs during this month.
November
November brings further temperature reduction as winter approaches, though conditions remain extremely hot. Highs of 167°F and lows of 118°F mark the transition toward the cooler season. No precipitation occurs.
December
December represents the return to the year's coolest temperatures, though still extremely hot by normal standards. Highs of 149°F and lows of 104°F make this the most tolerable month. No rainfall occurs.