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Contents
- 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 snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a moderate winter month in Alto, Arizona, with an average temperature ranging between max 60.4°F (15.8°C) and min 40.5°F (4.7°C). The arrival of January brings an average high-temperature of a still moderate 60.4°F (15.8°C), closely following the temperature pattern of December. Weather in January »
Weather in February
February, the last month of the winter in Alto, is a refreshing month, with an average temperature fluctuating between 61.5°F (16.4°C) and 41.7°F (5.4°C). The arrival of February sees a recorded average high-temperature of a comfortable 61.5°F (16.4°C), showing little divergence from the previous month's conditions. Weather in February »
Weather in March
The first month of the spring, March, is a pleasant month in Alto, Arizona, with an average temperature fluctuating between 46.9°F (8.3°C) and 68.5°F (20.3°C). March showcases a minor temperature ascent, adjusting from February's enjoyable 61.5°F (16.4°C) to an agreeable 68.5°F (20.3°C). Weather in March »
Weather in April
April in Alto, Arizona, is a warm spring month, with an average temperature fluctuating between 50.4°F (10.2°C) and 74.3°F (23.5°C). The arrival of April witnesses a small shift in the average high-temperature, moving from an agreeable 68.5°F (20.3°C) in March to a warm 74.3°F (23.5°C). Weather in April »
Weather in May
The last month of the spring, May, is another warm month in Alto, Arizona, with an average temperature varying between 81.3°F (27.4°C) and 55.2°F (12.9°C). The beginning of May marks a minor shift in the average high-temperature, moving from April's moderately hot 74.3°F (23.5°C) to a still warm 81.3°F (27.4°C). Weather in May »
Weather in June
The first month of the summer, June, is a hot month in Alto, Arizona, with an average temperature varying between 91°F (32.8°C) and 65.3°F (18.5°C). The warmest time of the year is June, with temperatures averaging a high of 91°F (32.8°C) and a low of 65.3°F (18.5°C). Weather in June »
Weather in July
July, the same as June, in Alto, Arizona, is a hot summer month, with temperature in the range of an average low of 70.2°F (21.2°C) and an average high of 87.4°F (30.8°C). July's arrival brings an average high-temperature of a still tropical 87.4°F (30.8°C), demonstrating subtle variation from the preceding month. Weather in July »
Weather in August
August, the last month of the summer in Alto, is another tropical month, with an average temperature fluctuating between 87.1°F (30.6°C) and 68.4°F (20.2°C). Alto records an average high-temperature of a still tropical 87.1°F (30.6°C) as August arrives, nearly mirroring the previous month's climate. Weather in August »
Weather in September
September, the first month of the autumn in Alto, is still a warm month, with an average temperature fluctuating between 83.7°F (28.7°C) and 64.6°F (18.1°C). With the onset of September, the average high-temperature stands at a moderately hot 83.7°F (28.7°C), closely aligned with August's 87.1°F (30.6°C). Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Alto, Arizona, with an average temperature fluctuating between 77.2°F (25.1°C) and 55.4°F (13°C). As October begins, there is a minor decrease in the average high-temperature, softly falling from a moderately hot 83.7°F (28.7°C) in September to a still warm 77.2°F (25.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is another comfortable month in Alto, Arizona, with an average temperature ranging between max 67.6°F (19.8°C) and min 46.6°F (8.1°C). In Alto, the beginning of November is marked by a lowered average high-temperature, shifting from October's warm 77.2°F (25.1°C) to an enjoyable 67.6°F (19.8°C). Weather in November »
Weather in December
December, the first month of the winter in Alto, is still a mild month, with an average temperature fluctuating between 59.2°F (15.1°C) and 39.9°F (4.4°C). The month of December sees the lowest average temperatures, reaching 59.2°F (15.1°C) at the peak and 39.9°F (4.4°C) at the low. Weather in December »
[Resources]Frequently asked questions
How much does it rain in Alto?
Throughout the year, there are 87.8 rainfall days, and 15.43" (392mm) of precipitation is accumulated.
When does it snow in Alto?
January through March and December are months with snowfall in Alto.
How many days does it snow in Alto?
Throughout the year, in Alto, there are 2.1 snowfall days, and 2.32" (59mm) of snow is accumulated.
What is the month with the lowest UV index in Alto?
The months with the lowest UV index in Alto, Arizona, are January, November and December, with an average maximum UV index of 3.
When it does not snow in Alto?
In Alto, Arizona, snow does not fall in April through November.
What are the least humid months in Alto?
May and June, with an average relative humidity of 24%, are the least humid months in Alto.
What is the driest month in Alto?
The month with the least rainfall in Alto is May, when the rain falls for 1.8 days and typically collects 0.16" (4mm) of precipitation.
What are the warmest months in Alto?
Alto's warmest month, June, generally records average temperatures ranging from a high of 91°F (32.8°C) to a low of 65.3°F (18.5°C).
When are the longest days in Alto?
The month with the longest days in Alto is June, with an average of 14h and 12min of daylight.
What month has the most sunshine in Alto?
June has the most sunshine of the year in Alto, Arizona, with an average of 12h of sunshine.
What are the months with the highest UV index in Alto?
June and August, with an average maximum UV index of 7, are months with the highest UV index.
What is the rainiest month in Alto?
The month with the most rainfall in Alto is July, when the rain falls for 21.9 days and typically aggregates up to 4.53" (115mm) of precipitation.
What is the most humid month in Alto?
August is the most humid month in Alto, Arizona, with an average relative humidity of 51%.
What month is the coldest in Alto?
In Alto, the lowest temperatures are generally noted in December, averaging a high of 59.2°F (15.1°C) and a low of 39.9°F (4.4°C).
When does it snow the most in Alto?
The month with the most snowfall in Alto is December, when snow falls for 0.7 days and typically aggregates up to 1.06" (27mm) of snow.
What is the month with the shortest days in Alto?
The month with the shortest days is December, with an average of 10h and 6min of daylight.
Is there Daylight Saving Time (DST) in Alto?
Alto does not observe Daylight Saving Time (DST). MST timezone is used over the entire year.
What is the month with the least sunshine in Alto?
With an average of 6.9h of sunshine, December has the least sunshine of the year in Alto.
Average temperature
Alto, AZ
The warmest month (with the highest average high temperature) is June (91°F).
The month with the lowest average high temperature is December (59.2°F).
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is December (39.9°F).
Average pressure
Alto, AZ
- Average pressure in January:
30.06"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
29.96"Hg - Average pressure in April:
29.89"Hg - Average pressure in May:
29.85"Hg - Average pressure in June:
29.82"Hg
- Average pressure in July:
29.88"Hg - Average pressure in August:
29.88"Hg - Average pressure in September:
29.87"Hg - Average pressure in October:
29.91"Hg - Average pressure in November:
30"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed
Alto, AZ
- Average wind speed in January:
6.5mph - Average wind speed in February:
7.6mph - Average wind speed in March:
8.5mph - Average wind speed in April:
9.8mph - Average wind speed in May:
9.9mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
5.2mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7mph - Average wind speed in November:
7.3mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is May (9.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity
Alto, AZ
The month with the highest relative humidity is August (51%).
The months with the lowest relative humidity are May and June (24%).
Average rainfall
Alto, AZ
- Average rainfall in January:
0.63" - Average rainfall in February:
0.83" - Average rainfall in March:
0.51" - Average rainfall in April:
0.2" - Average rainfall in May:
0.16" - Average rainfall in June:
0.39"
- Average rainfall in July:
4.53" - Average rainfall in August:
3.86" - Average rainfall in September:
2.32" - Average rainfall in October:
0.47" - Average rainfall in November:
0.83" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is May (0.16").
Average rainfall days
Alto, AZ
- Average rainfall days in January:
4.7 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
4.3 days - Average rainfall days in April:
3.1 days - Average rainfall days in May:
1.8 days - Average rainfall days in June:
3.8 days
- Average rainfall days in July:
21.9 days - Average rainfall days in August:
18.3 days - Average rainfall days in September:
12.2 days - Average rainfall days in October:
4.7 days - Average rainfall days in November:
2.8 days - Average rainfall days in December:
5.7 days
The month with the highest number of rainy days is July (21.9 days).
The month with the least rainy days is May (1.8 days).
Average snowfall
Alto, AZ
The month with the highest snowfall is December (1.06").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Alto, AZ
- Average snowfall days in January:
0.4 days - Average snowfall days in February:
0.8 days - Average snowfall days in March:
0.2 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
0.7 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight / Average sunshine
Alto, AZ
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 1min - 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 1min
- Average daylight in July:
14h and 0min - 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 4min - Average daylight in December:
10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in January:
7h and 1min - Average sunshine in February:
8h and 5min - 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 0min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 5min - Average sunshine in September:
9h and 4min - Average sunshine in October:
7h and 5min - Average sunshine in November:
7h and 1min - Average sunshine in December:
6h and 5min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).
Average sunshine days
Alto, AZ
- Average sunshine days in January:
25.8 days - Average sunshine days in February:
23.3 days - Average sunshine days in March:
26.8 days - Average sunshine days in April:
27.2 days - Average sunshine days in May:
28.8 days - Average sunshine days in June:
24.3 days
- Average sunshine days in July:
6.6 days - Average sunshine days in August:
8 days - Average sunshine days in September:
15 days - Average sunshine days in October:
24.3 days - Average sunshine days in November:
26.4 days - Average sunshine days in December:
24.4 days
The month with the most sunshine days is May (28.8 days).
The month with the least sunshine days is July (6.6 days).
Average UV index
Alto, AZ
The months with the highest UV index are June and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover
Alto, AZ
The month with the most cloud cover is July (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 7).
Average visibility
Alto, 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).
Alto, Arizona, USA
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