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Contents
- The climate of Yuma
- The best time to visit Yuma
- The worst time to visit Yuma
- Spring weather in Yuma
- Summer weather in Yuma
- Autumn weather in Yuma
- Winter weather in Yuma
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Arizona/California border with the Colorado River in Yuma, Arizona
The climate of Yuma
Yuma, Arizona nestles in the BWh zone according to the Köppen climate classification, fitting the subtropical desert criteria. The subtropical desert zone characteristically exhibits not only high temperatures but also scant rainfall throughout the year.
Turning attention to the desert locality in Yuma, striking shifts in temperatures are evident from month to month. It reaches highs of 105.3°F (40.7°C) in July and drops to lows of 50.9°F (10.5°C) in January, offering a vast temperature range. Sunshine hours are abundant with a peak of 14.3 hours in June. Conversely, UV radiation is at its most intense in the summer months, from June to August, rising to an index of 8.
A key characteristic of desert biomes, such as Yuma, is minimal precipitation. Precipitation is sparse, with the peak rainfall only reaching 0.39" (10mm) in July, September, and November. However, it is worth noting that these figures are dwarfed by the massive amount of sun in the month of May, with recorded sunshine days of up to 30.2 days. Humidity levels are relatively low year-round, maintaining between 22% and 38%, reflecting the arid conditions of the area.
Regarding wind conditions, they maintain a fairly stable pattern, with the wind's speed varying slightly, from 6.8mph (10.9km/h) in February to 8.5mph (13.7km/h) in April and July.
Turning attention to the desert locality in Yuma, striking shifts in temperatures are evident from month to month. It reaches highs of 105.3°F (40.7°C) in July and drops to lows of 50.9°F (10.5°C) in January, offering a vast temperature range. Sunshine hours are abundant with a peak of 14.3 hours in June. Conversely, UV radiation is at its most intense in the summer months, from June to August, rising to an index of 8.
A key characteristic of desert biomes, such as Yuma, is minimal precipitation. Precipitation is sparse, with the peak rainfall only reaching 0.39" (10mm) in July, September, and November. However, it is worth noting that these figures are dwarfed by the massive amount of sun in the month of May, with recorded sunshine days of up to 30.2 days. Humidity levels are relatively low year-round, maintaining between 22% and 38%, reflecting the arid conditions of the area.
Regarding wind conditions, they maintain a fairly stable pattern, with the wind's speed varying slightly, from 6.8mph (10.9km/h) in February to 8.5mph (13.7km/h) in April and July.
The best time to visit Yuma
Taking all climate parameters into account, the optimal time to visit Yuma is during the spring, more specifically from March to May. During this period, the temperatures are mild with highs fluctuating from 72.1°F (22.3°C) to 91.6°F (33.1°C) and the weather conditions are more amicable, with rainfall averaging at about 0.17" (4mm). In addition, the daylight hours start to increase, providing tourists ample time to enjoy their outdoor activities.
The worst time to visit Yuma
The relentless heat in Yuma from June to August often proves to be too much for visitors. With temperature highs soaring to between 102.6°F (39.2°C) and 105.3°F (40.7°C) and UV index readings reaching up to 8, the scorching summer months may be best avoided. While the rainfall slightly increases to an average of 0.24" (6mm) during these months, it does very little to relieve the sweltering heat.
Spring weather in Yuma
The spring season in Yuma, Arizona, characteristically has more moderate weather, well-suited to outdoor explorations. During these months, the temperatures rise steadily from 68°F (20°C) in March to 91.6°F (33.1°C) in May. Due to its desert climate, rainfall remains low throughout the spring, with precipitation increasing just slightly from 0.2" (5mm) in March to 0.04" (1mm) in May. The hours of daylight increase steadily during these months, offering optimal conditions for sightseeing and exploring the desert terrain.
Summer weather in Yuma
Summers in Yuma are characteristically unforgiving, often culminating in sweltering high temperatures. These summer months witness average highs reaching between 102.6°F (39.2°C) and 105.3°F (40.7°C), making it the hottest period of the year. This period also sees a slight increase in rainfall, peaking at 0.39" (10mm) in July. However, the scorching temperatures and intense UV index, which rises to 8, often make outdoor activities during the day challenging.
Autumn weather in Yuma
Following the intense summer heat, autumn emerges as a transition period in Yuma. During these months, temperatures begin to cool down, decreasing from 99.5°F (37.5°C) in September to a more comfortable 76.6°F (24.8°C) in November. Rainfall remains stable, oscillating around 0.28" (7mm), while daylight hours start to decrease, signaling the onset of the cooler season.
Winter weather in Yuma
Despite being situated in a subtropical desert zone, Yuma experiences relatively mild winters. From December to February, high temperatures fluctuate between 66°F (18.9°C) and 68°F (20°C), while lows range from 50.5°F (10.3°C) to 53.2°F (11.8°C). Rainfall remains minimal during this period, averaging at 0.24" (6mm), while daylight and sunshine hours decrease to their lowest levels. In these cooler months, visitors can thoroughly enjoy exploring Yuma without the discomfort of extreme heat.
Weather in January
Despite the chill of winter, Yuma, Arizona doesn't see the snowy scenes typical of many locations across the United States. The arid desert climate leads to a distinct winter season, where the sun often remains present in the sky for the vast majority of the available daylight. Weather in January »
Weather in February
The transition from January to February brings mild changes in Yuma's weather condition, an incremental increase in temperature and sunlight hours is observable. February signals the last full month of winter, but without the wet or snowy conditions many might associate with this period. Weather in February »
Weather in March
As spring begins to make its appearance, March in Yuma heralds a subtle transition in climatic conditions. An increase in average weekday sunshine hours to 9.5 hours coupled with the budding warmth and notable dryness all add up to create an appealing time for outdoor activities. Weather in March »
Weather in April
April ushers in some significant changes, with temperatures climbing and the days lengthening further, edging towards the peak daylight duration seen in summer. Increased heat necessitates hydration and sunscreen, especially for those venturing outdoors. Weather in April »
Weather in May
As the gateway to summer, May in Yuma sees another jump in temperatures, but the city’s low humidity helps keep conditions from becoming unbearable. This month sees an unusual decrease in cloud cover percentage to 6%, making the sky nearly always clear of clouds. Weather in May »
Weather in June
A peak in several meteorological aspects characterizes the typical June weather in Yuma. This is the time when summer announces its presence in no uncertain terms, with the longest days of the year and temperatures that can soar. June boasts the highest average daylight hours at 14.3, offering ample time to explore the city. Weather in June »
Weather in July
In July, the desert city of Yuma experiences average high temperatures reaching 105.3°F (40.7°C), the zenith of summer's onslaught of heat. Despite the high temperatures, rainfall increases slightly, offering temporary relief from the searing heat. Weather in July »
Weather in August
Following the peak in July, August sees a minute reduction in both temperatures and daylight hours in Yuma. However, even with this slight reprieve, people should be mindful of the heat and remember to drink plenty of fluids. This month has one of the highest average low temperatures at 86.4°F (30.2°C), sustaining the warm summer nights. Weather in August »
Weather in September
The arrival of September heralds a transition from the scorching Arizona as temperatures start their descent from the summer highs. The grip of extreme heat starts to loosen with the arrival of early autumn, but still ample sun ensures daytime remains warm. Weather in September »
Weather in October
October brings a marked change in Yuma's weather, with conditions becoming notably more comfortable. The incrementally cooling temperatures and reduced daylight hours signal the undeniable approach of winter. Yuma in mid-autumn is a beautiful mix of warm sunny days and cool, pleasurable evenings. Weather in October »
Weather in November
November, as part of late autumn in Yuma, sees another drop in temperature but maintains a pleasant and mild climate. Days are still significantly sunny, offset effectively by the cool wind and less heat. The visible decrease in temperature and sunlight hours signals to the inhabitants that winter is nearing. Weather in November »
Weather in December
December sees the complete transition to winter, the temperature dropping to an average of 66°F (18.9°C). But even in this coldest month, Yuma’s desert location ensures a far cry from the blizzards and extreme cold experienced elsewhere in the USA. Weather in December »
[Resources]Frequently asked questions
How much does it rain in Yuma?
Throughout the year, in Yuma, there are 31.6 rainfall days, and 2.8" (71mm) of precipitation is accumulated.
What is the driest month in Yuma?
The months with the least rainfall in Yuma are May and June Rain falls for 0.8 days and accumulates 0.04" (1mm) of rain.
What is the least humid month in Yuma?
June is the least humid month in Yuma, with an average relative humidity of 22%.
When are the longest days in Yuma?
June has the longest days of the year, with an average of 14h and 18min of daylight.
What month has the most sunshine in Yuma?
With an average of 12.2h of sunshine, June has the most sunshine of the year.
What is the month with the highest UV index in Yuma?
June through September, with an average maximum UV index of 8, are months with the highest UV index.
What are the warmest months in Yuma?
July proves to be the warmest month in Yuma, recording an average peak temperature of 105.3°F (40.7°C) and a minimum temperature of 84.6°F (29.2°C).
What is the wettest month in Yuma?
The months with the most rainfall in Yuma, Arizona, are July and September, with an average 0.39" (10mm) of precipitation.
When is the lowest UV index in Yuma?
The months with the lowest UV index are November and December, with an average maximum UV index of 4.
What is the coldest time of year in Yuma?
In Yuma, December is the month with the lowest recorded average temperatures, measuring a high of 66°F (18.9°C) and a low of 50.5°F (10.3°C).
What is the most humid month in Yuma?
The most humid month is December, with an average relative humidity of 38%.
What is the month with the shortest days in Yuma?
With an average of 10h and 0min of daylight, December has the shortest days of the year.
Is there Daylight Saving Time (DST) in Yuma?
Yuma does not observe Daylight Saving Time (DST). MST timezone is used throughout the entire year.
What is the month with the least sunshine in Yuma?
With an average of 7.2h of sunshine, December has the least sunshine of the year in Yuma, Arizona.
Average temperature
Yuma, AZ
The warmest month (with the highest average high temperature) is July (105.3°F).
The month with the lowest average high temperature is December (66°F).
The month with the highest average low temperature is August (86.4°F).
The coldest month (with the lowest average low temperature) is December (50.5°F).
Average pressure
Yuma, AZ
- Average pressure in January:
30.07"Hg - Average pressure in February:
30"Hg - Average pressure in March:
29.95"Hg - Average pressure in April:
29.86"Hg - Average pressure in May:
29.8"Hg - Average pressure in June:
29.74"Hg
- Average pressure in July:
29.78"Hg - Average pressure in August:
29.77"Hg - Average pressure in September:
29.78"Hg - Average pressure in October:
29.86"Hg - Average pressure in November:
29.98"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.74"Hg).
Average wind speed
Yuma, AZ
- Average wind speed in January:
7mph - Average wind speed in February:
6.8mph - Average wind speed in March:
7.3mph - Average wind speed in April:
8.5mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
8.5mph - Average wind speed in August:
8mph - Average wind speed in September:
6.9mph - Average wind speed in October:
6.9mph - Average wind speed in November:
6.6mph - Average wind speed in December:
7mph
The windiest months (with the highest average wind speed) are April and July (8.5mph).
The calmest month (with the lowest average wind speed) is November (6.6mph).
Average humidity
Yuma, AZ
The month with the highest relative humidity is December (38%).
The month with the lowest relative humidity is June (22%).
Average rainfall
Yuma, AZ
- Average rainfall in January:
0.2" - Average rainfall in February:
0.31" - Average rainfall in March:
0.35" - Average rainfall in April:
0.12" - Average rainfall in May:
0.04" - Average rainfall in June:
0.04"
- Average rainfall in July:
0.39" - Average rainfall in August:
0.28" - Average rainfall in September:
0.39" - Average rainfall in October:
0.2" - Average rainfall in November:
0.24" - Average rainfall in December:
0.24"
The wettest months (with the highest rainfall) are July and September (0.39").
The driest months (with the least rainfall) are May and June (0.04").
Average rainfall days
Yuma, AZ
- Average rainfall days in January:
2.5 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
2 days - Average rainfall days in April:
2.2 days - Average rainfall days in May:
0.8 days - Average rainfall days in June:
1 days
- Average rainfall days in July:
5.8 days - Average rainfall days in August:
4.1 days - Average rainfall days in September:
4.6 days - Average rainfall days in October:
1.5 days - Average rainfall days in November:
1.6 days - Average rainfall days in December:
2.7 days
The month with the highest number of rainy days is July (5.8 days).
The month with the least rainy days is May (0.8 days).
Average daylight / Average sunshine
Yuma, AZ
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
8h and 1min - Average sunshine in February:
9h and 4min - Average sunshine in March:
9h and 3min - Average sunshine in April:
10h and 1min - Average sunshine in May:
12h and 0min - Average sunshine in June:
12h and 1min
- Average sunshine in July:
12h and 1min - Average sunshine in August:
10h and 4min - Average sunshine in September:
9h and 5min - Average sunshine in October:
8h and 5min - Average sunshine in November:
7h and 3min - Average sunshine in December:
7h and 1min
The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).
Average sunshine days
Yuma, AZ
- Average sunshine days in January:
27.9 days - Average sunshine days in February:
25.2 days - Average sunshine days in March:
29.1 days - Average sunshine days in April:
27.8 days - Average sunshine days in May:
30.2 days - Average sunshine days in June:
28.5 days
- Average sunshine days in July:
22.1 days - Average sunshine days in August:
22.8 days - Average sunshine days in September:
23 days - Average sunshine days in October:
28.2 days - Average sunshine days in November:
27.9 days - Average sunshine days in December:
27.9 days
The month with the most sunshine days is May (30.2 days).
The month with the least sunshine days is July (22.1 days).
Average UV index
Yuma, AZ
The months with the highest UV index are June, July, August and September (UV index 8).
The months with the lowest UV index are November and December (UV index 4).
Average cloud cover
Yuma, AZ
The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility
Yuma, AZ
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Yuma, Arizona, USA
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