What is the hottest month in Tombstone?

June is the warmest month in Tombstone, with an average high of 96.1°F.

What is the coldest month in Tombstone?

January is the coldest month in Tombstone, with an average low of 37.6°F.

What month does Tombstone get the most rain?

August is typically the wettest month in Tombstone, with about 3.07 inches of precipitation.

What plant hardiness zone is Tombstone in?

Tombstone is approximately in USDA plant hardiness Zone 9a, based on the average annual extreme minimum temperature.

Has the climate in Tombstone changed recently?

17.2% of Tombstone's all-time daily heat records were set in the last decade (since 2015), compared to roughly 5% if records were evenly distributed over time.

Tombstone, AZ

Climate overview — based on NOAA 1991-2020 normals from TOMBSTONE, AZ US.

BSh Semi-arid (hot) climate 9a USDA hardiness Zone 9a

Year-round temperatures (°F)

Avg high Avg low

Climate summary

Tombstone has an annual average temperature of 65.7°F with about 13.2 inches of precipitation per year and 1.2 inches of snow. The warmest month is June (average high 96.1°F), and the coldest is January (average low 37.6°F). August is typically the wettest month (3.07 in) and April the driest (0.21 in). Snow typically falls from November through January.

Annual swing

31.8°F

warmest to coldest month

Heating need

1,782

HDD/yr

Cooling need

2,034

CDD/yr

Best time to visit Tombstone

Full guide →

Climate change signal

All-time records →

63 of 366 (17.2%) of Tombstone's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1890s		0
1900s		15
1910s		57
1920s		18
1930s		9
1940s		26
1950s		61
1960s		18
1970s		10
1980s		37
1990s		26
2000s		21
2010s		32
2020s		36

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month	Avg High	Avg Low	Avg Temp	Precipitation	Snow	Rainy days
January	61.6°F	37.6°F	49.6°F	0.82 in	0.5 in	4
February	64.3°F	40.0°F	52.2°F	0.70 in	0.1 in	4
March	71.3°F	44.0°F	57.7°F	0.71 in	—	3
April	78.6°F	49.4°F	64.0°F	0.21 in	—	1
May	86.9°F	57.0°F	72.0°F	0.24 in	—	1
June	96.1°F	65.8°F	81.0°F	0.64 in	—	3
July	94.0°F	68.4°F	81.2°F	3.03 in	—	10
August	91.6°F	67.2°F	79.4°F	3.07 in	—	11
September	89.0°F	63.6°F	76.3°F	1.61 in	—	6
October	81.4°F	54.4°F	67.9°F	0.64 in	—	3
November	70.3°F	45.1°F	57.7°F	0.62 in	0.4 in	3
December	61.0°F	37.7°F	49.4°F	0.93 in	0.2 in	4