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Contents
- The climate of Scottsdale
- The best time to visit Scottsdale
- The worst time to visit Scottsdale
- Spring weather in Scottsdale
- Summer weather in Scottsdale
- Autumn weather in Scottsdale
- Winter weather in Scottsdale
- 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
A scenic waterfront canal running through Scottsdale, Arizona
The climate of Scottsdale
Best defined as a Subtropical desert and categorized by the Köppen climate classification as BWh, the city of Scottsdale, Arizona presents a unique climate experience for its inhabitants. This metropolis, tucked away in the state of Arizona, United States, is dominated by two primary seasons - a lengthy and hot summer, and a brief, mild winter.
Throughout the year, the highest temperatures generally fluctuate between 62.8°F (17.1°C) in December and a scorching 102.6°F (39.2°C) in July. Putting into perspective, the city’s coolest months stay well above freezing, and the heat during summer can be intense. On the other end of the spectrum, the lowest temperatures only drop to around 46.9°F (8.3°C) in January and rise to 84.4°F (29.1°C) in August.
Relative humidity in Scottsdale is significantly low, typically staying between 16% during the dry months of May and June to 44% in wetter December. Precipitation is scanty, with the period from June to August receiving the least, ranging from 0.08" (2mm) to 0.12" (3mm). The maximum rainfall occurs between July and September, with approximately an inch of rain recorded during these months. High-pressure conditions are prevalent throughout the year, the barometric pressure staying between 29.81" (757mm) in June and 30.09" (764mm) in January.
Throughout the year, the highest temperatures generally fluctuate between 62.8°F (17.1°C) in December and a scorching 102.6°F (39.2°C) in July. Putting into perspective, the city’s coolest months stay well above freezing, and the heat during summer can be intense. On the other end of the spectrum, the lowest temperatures only drop to around 46.9°F (8.3°C) in January and rise to 84.4°F (29.1°C) in August.
Relative humidity in Scottsdale is significantly low, typically staying between 16% during the dry months of May and June to 44% in wetter December. Precipitation is scanty, with the period from June to August receiving the least, ranging from 0.08" (2mm) to 0.12" (3mm). The maximum rainfall occurs between July and September, with approximately an inch of rain recorded during these months. High-pressure conditions are prevalent throughout the year, the barometric pressure staying between 29.81" (757mm) in June and 30.09" (764mm) in January.
The best time to visit Scottsdale
A trip to Scottsdale would be most enjoyable during the spring months of March through May. The average high temperatures vary between 75.7°F (24.3°C) in March and 90.1°F (32.3°C) in May, while nighttime lows ranging between 55.4°F (13°C) to 67.1°F (19.5°C) ensure cool and pleasant conditions. These spring months also witness Scottsdale bathed in abundant sunshine, clocking between 9.2 hours to 11.9 hours daily. Rainfall is minimal, offering the best conditions to enjoy outdoor activities and explore the city's landscape.
The worst time to visit Scottsdale
The period from June to August presents less favorable conditions for visitors, given the extreme heat that characterizes this desert climate. Average high temperatures are relentless, reaching 101.8°F (38.8°C) in June and peaking at 102.6°F (39.2°C) in July. Nighttime temperatures also remain fairly warm, ranging between 75.7°F (24.3°C) and 84.4°F (29.1°C). Also, these summer months register the lowest humidity levels‚ a mere 16 to 19%, intensifying the sensation of heat.
Spring weather in Scottsdale
Spring in Scottsdale is characterized by escalating temperatures and declining rainfall. March begins with a high of 75.7°F (24.3°C), which by May end reaches 90.1°F (32.3°C). Nighttime temperatures also rise from 55.4°F (13°C) to 67.1°F (19.5°C). Rainfall is relatively low throughout the period, declining gradually from 0.63" (16mm) in March to 0.12" (3mm) in May. This season is also marked by abundant sunshine, with the city receiving increasing hours of daily sunshine, from 9.2 hours in March to 11.9 hours in May.
Summer weather in Scottsdale
Summers in Scottsdale are notably hot and arid. From June to August, daytime maximum temperatures surpass the 100°F (37.8°C) mark, reaching 101.8°F (38.8°C) in June and peaking at 102.6°F (39.2°C) in July. Minimum temperatures also remain quite high, increasing from 75.7°F (24.3°C) in June to 84.4°F (29.1°C) in August. The city registers its lowest rainfall and humidity levels during this season. June stands out as the driest month, with a meager average rainfall of just 0.08" (2mm).
Autumn weather in Scottsdale
Autumn sees a transition from the intense summer heat to milder conditions. The temperature highs decrease from 95.9°F (35.5°C) in September to 73.4°F (23°C) by November. Minimum temperatures also drop considerably from 77.9°F (25.5°C) to 55.8°F (13.2°C) in the same period. Rainfall begins to pick up, with November documenting an increased average rainfall of 0.51" (13mm).
Winter weather in Scottsdale
Winter months in Scottsdale provide a stark contrast to the preceding seasons. Average high temperatures decrease from 62.8°F (17.1°C) in December to a year-round low by January at 64°F (17.8°C) before rising to 67.5°F (19.7°C) in February. Nighttime lows hover between 46.9°F (8.3°C) in January and 49.5°F (9.7°C) in February. These months experience the highest average relative humidity values over the year, reaching 44% by December. Despite the increased humidity, rainfall remains scarce, with December and February both recording 0.87" (22mm).
Weather in January
The year in Scottsdale, Arizona begins with chilly, yet moderate conditions, with temperatures rarely dropping below 46.9°F (8.3°C). The skies frequently shine clear, as January is one of the months boasting the fewest cloud cover. Weather in January »
Weather in February
February sees a slight climb in temperatures with weather remaining generally cool yet comfortable. The days begin to lengthen, bringing more sunshine than January. Rainfall stays minimal, keeping the outdoors manageable and dry. Weather in February »
Weather in March
Come March, temperatures in Scottsdale, Arizona continue rising, hinting the onset of the warmer half of the year. Relative humidity dips, leading to lower precipitation, with rainfall amounts significantly lower than those during the winter months. Weather in March »
Weather in April
April introduces the residents of Scottsdale, Arizona to warmer days as the temperatures show a further increase. April sees its humidity levels dropping to 21%, reflecting the gradual transition towards hotter months. The days continue to stretch, offering more sunshine hours per day. Weather in April »
Weather in May
In May, Scottsdale, Arizona residents witness a noticeable shift towards higher temperatures, hinting at the forthcoming summer. The clear, bright blue skies dominate the month with a low cloud cover of only 8%. Despite the rise in temperature, the humidity continues to drop, reaching the lowest value for the year. Weather in May »
Weather in June
June brings the highest temperatures of the year, with Scottsdale, Arizona experiencing up to 101.8°F (38.8°C). Residents can enjoy nearly perfect visibility throughout June, thanks to the least cloud cover seen all year. Barring any sporadic showers, drought-like conditions prevail with little rainfall over the month. Weather in June »
Weather in July
July continues the trend of high temperatures, breaking June's record by hitting 102.6°F (39.2°C). Despite the heat, Scottsdale, Arizona sees a resurgence in rainfall after a dry June, marking the onset of the monsoon season. Cloud cover increases, providing intermittent relief from the searing sun. Weather in July »
Weather in August
In Scottsdale, Arizona, August remains hot, replicating July's maximum temperatures. Despite the high heat, rainfall amounts increase slightly from the previous month, averaging at 0.94" (24mm). An occasional cloud cover provides infrequent shelter from the relentless sun. Weather in August »
Weather in September
September brings with it a marked decrease in temperatures, paving the way for more manageable conditions. Despite the heat of the summer abating, rainfall stays consistent with August's totals, extending Scottsdale, Arizona's wettest period of the year. Weather in September »
Weather in October
October sees a further decrease in temperatures, making the weather in Scottsdale, Arizona more enjoyable. The increased cloud cover adds variety to the skies while enticing residents to the outdoors. As the monsoon retreats, rainfall decreases to less than an inch, bringing drier days. Weather in October »
Weather in November
November brings significant changes to Scottsdale, Arizona's weather conditions, marking a shift towards colder temperatures and denser cloud cover. With rainfall totaling to 0.51" (13mm), the environment remains dry despite increased cloud cover. Weather in November »
Weather in December
December ends the year in Scottsdale, Arizona with a return to winter-like conditions, marked by temperatures dipping to an average low of 47.3°F (8.5°C). The high relative humidity of 44% doesn't translate into significant precipitation, leaving the month relatively dry. Weather in December »
Updated: Jul 5, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How many days does it rain?
Throughout the year, there are 57.7 rainfall days, and 7.72" (196mm) of precipitation is accumulated.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 8, are months with the highest UV index.
What is the least humid month?
June is the least humid month, with an average relative humidity of 16%.
What is the driest month?
The month with the least rainfall is June, when the rain falls for 1 days and typically collects 0.08" (2mm) of precipitation.
When are the longest days?
June has the longest days of the year, with an average of 14h and 18min of daylight.
What are the months with the most sunshine?
The months with the most sunshine are June and August, with an average of 12.1h of sunshine.
What month is the hottest?
July, recognised by an average high temperature of 102.6°F (39.2°C) and a low of 83.7°F (28.7°C), is Scottsdale's warmest month.
What is the wettest month?
The month with the most rainfall is July, when the rain falls for 10.2 days and typically aggregates up to 1.14" (29mm) of precipitation.
What are the coldest months?
December is Scottsdale's coldest month, registering average high temperatures of 62.8°F (17.1°C) and lows of 47.3°F (8.5°C).
What is the most humid month?
The most humid month is December, with an average relative humidity of 44%.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 10h and 0min of daylight.
Is there Daylight Saving Time (DST)?
Scottsdale, Arizona, does not utilize Daylight Saving Time (DST). MST timezone is used throughout the entire year.
What is the month with the least sunshine?
With an average of 6.8h of sunshine, December has the least sunshine of the year.
What is the month with the lowest UV index?
December is the month with the lowest UV index, with an average maximum UV index of 3.
Average temperature
Scottsdale, AZ
The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (62.8°F).
The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure
Scottsdale, AZ
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.02"Hg - Average pressure in March:
29.97"Hg - Average pressure in April:
29.88"Hg - Average pressure in May:
29.84"Hg - Average pressure in June:
29.81"Hg
- Average pressure in July:
29.88"Hg - Average pressure in August:
29.87"Hg - Average pressure in September:
29.87"Hg - Average pressure in October:
29.92"Hg - Average pressure in November:
30.01"Hg - Average pressure in December:
30.06"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.81"Hg).
Average wind speed
Scottsdale, AZ
- Average wind speed in January:
4.6mph - Average wind speed in February:
4.7mph - Average wind speed in March:
5.3mph - Average wind speed in April:
6.3mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.1mph - Average wind speed in October:
4.8mph - Average wind speed in November:
4.8mph - Average wind speed in December:
4.4mph
The windiest months (with the highest average wind speed) are April and May (6.3mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).
Average humidity
Scottsdale, AZ
The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (16%).
Average rainfall
Scottsdale, AZ
- Average rainfall in January:
0.59" - Average rainfall in February:
0.79" - Average rainfall in March:
0.63" - Average rainfall in April:
0.16" - Average rainfall in May:
0.12" - Average rainfall in June:
0.08"
- Average rainfall in July:
1.14" - Average rainfall in August:
0.94" - Average rainfall in September:
0.94" - Average rainfall in October:
0.94" - Average rainfall in November:
0.51" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days
Scottsdale, AZ
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.1 days - Average rainfall days in March:
3.6 days - Average rainfall days in April:
2.9 days - Average rainfall days in May:
1.8 days - Average rainfall days in June:
1 days
- Average rainfall days in July:
10.2 days - Average rainfall days in August:
9.3 days - Average rainfall days in September:
7.3 days - Average rainfall days in October:
3.9 days - Average rainfall days in November:
2.8 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is June (1 days).
Average daylight / Average sunshine
Scottsdale, AZ
- Average daylight in January:
10h and 1min - 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 2min - 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:
7h and 1min - Average sunshine in February:
9h and 1min - Average sunshine in March:
9h and 1min - Average sunshine in April:
10h and 5min - Average sunshine in May:
11h and 5min - Average sunshine in June:
12h and 1min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 1min - Average sunshine in September:
9h and 4min - Average sunshine in October:
8h and 1min - Average sunshine in November:
7h and 2min - Average sunshine in December:
6h and 5min
The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days
Scottsdale, AZ
- Average sunshine days in January:
26 days - Average sunshine days in February:
23.8 days - Average sunshine days in March:
27.8 days - Average sunshine days in April:
27.8 days - Average sunshine days in May:
28.7 days - Average sunshine days in June:
27.8 days
- Average sunshine days in July:
16.8 days - Average sunshine days in August:
17.8 days - Average sunshine days in September:
20.9 days - Average sunshine days in October:
26.4 days - Average sunshine days in November:
26.4 days - Average sunshine days in December:
24.1 days
The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (16.8 days).
Average UV index
Scottsdale, AZ
The months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Scottsdale, AZ
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility
Scottsdale, 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).
Scottsdale, Arizona, USA
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