Mesa
Arizona, USA
Long-term weather forecast
Long-term weather forecast
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Monthly weather forecast and Climate
Mesa, AZ

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Mesa has a tropical and subtropical, hot desert type of climate (Köppen climate classification BWh) with scorching summers and mild winters, and a meager amount of rainfall. It is a suburban city in the Maricopa County of Arizona, east of Phoenix, in the southwestern United States. Mesa lies in the Sonoran Desert, which significantly influences its climate and is a part of the sunniest region in the world.

Mesa’s topography is mostly flat with desertlands, shrublands, and mesas. The average elevation stands at 375 meters above sea level. Mesa registers around 3800 hours of annual sunshine that lasts for about 80% of the daylight hours. The town lies in one of the driest and hottest regions in the United States with annual precipitation barely around 9.3" (236.2mm). The rainfall occurs in small quantities throughout the year, but the area is prone to thunderstorms and flash floods. The flatlands and arid landscape are unable to hold water, and a sudden burst of rain causes flooding. Snow is mostly absent in the far southern desert areas of the United States.

The summer sun is merciless in Mesa, and the high temperatures are mostly between 100°F (37.8°C) and 110°F (43.3°C). The average high temperature at the peak of July is around 106°F (41.1°C) with mostly clear skies. Winters are mild with the average low temperature around 40°F (4.4°C) in the coldest month of December. Winter days are usually bright and lie in the 60°F (15.6°C) to 70°F (21.1°C) zone while the mild nights rarely drop below freezing. Spring and autumn are brief and mild, as the weather remains predominantly hot for a significant part of the year. The skies are mostly clear, and the conditions are dry due to low humidity.

The highest recorded temperature in Mesa is 119°F (48.3°C) in July 1995 while the record for the lowest temperature is 15°F (-9.4°C).
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The best time to visit Mesa is between November to March during the relatively cool winter and the short seasons of spring and autumn when the temperatures are agreeable. The winter nights are mostly above 35°F (1.7°C) while the days are warm and rarely cross 80°F (26.7°C). The sun’s intensity is on the mild side during the winter, the rainfall is low, and there are no thunderstorms. Mesa receives visitors from all over America and typically the north where the winters are severely cold.

The worst time to visit Mesa is during the period from June to September when the sun is scorching, and the blistering heat is unbearable most of the time. Summer is prone to thunderstorms, and moderate rainfall causes flash floods, as the landscape is unable to hold even small quantities of water due to lack of vegetation. The dry and sunny days register 100°F (37.8°C) for the majority of the summer, and the extreme conditions mean that nights differ by around 30°F (-1.1°C) from the day. The apparent temperature is a few degrees higher than the registered one.

Mesa lies in the hot Sonoran Desert, which experiences thunderstorms with lightning and flash floods during the summer. The city is a part of the Phoenix Metropolitan Area that is prone to thunder and dust storms from July to September. Dry streambeds quickly turn into raging water torrents as the sparse vegetation of the arid shrublands in the region cannot absorb rainfall even in small quantities.

January is one of the best times to visit Mesa as the conditions are bright and the weather is agreeable. The average temperatures are in the mild 41°F (5°C) to 67°F (19.4°C) range. Weather in January »

February is mild in Mesa with the temperatures in the average range of 45°F (7.2°C) to 71°F (21.7°C). The days are warm, with the 11 hours of daylight. Weather in February »

It is a cold March, which sees low temperatures drop below 40°F (4.4°C). The average temperatures remain in the 49°F (9.4°C) to 77°F (25°C) range with light rain showers. Weather in March »

The days are mostly sunny in April as the daily sunshine lasts for around 11 hours and the days up to 13 hours. Expect periods of warm temperatures above 85°F (29.4°C). Weather in April »

The average high temperature in Mesa reaches a hot 94°F (34.4°C) while the average low during the nights is warm at 61°F (16.1°C). Weather in May »

The average temperatures remain in the 70°F (21.1°C) to 104°F (40°C) zone as the sun refuses to lower its intensity. Weather in June »

July is the hottest month of the year in Mesa as the average temperatures are in the hot range of 77°F (25°C) to 106°F (41.1°C). Weather in July »

Most days record between 105°F (40.6°C) and 110°F (43.3°C) as the average temperatures register in the range of 76°F (24.4°C) to 104°F (40°C). Weather in August »

September is the tail of the hot summer season in Mesa as the average temperatures remain in the high range of 70°F (21.1°C) to 99°F (37.2°C). Weather in September »

October welcomes the short autumn season during which the average temperature remains in the 59°F (15°C) to 89°F (31.7°C) in Mesa. Weather in October »

November brings a pleasant period during the autumn season in Mesa with mild temperatures in the zone of 47°F (8.3°C) to 75°F (23.9°C). Weather in November »

December is the coldest month of the year in Mesa with mild days and cold nights. The average low temperatures are in the zone of 40°F (4.4°C) to 67°F (19.4°C). Weather in December »
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