Climate and monthly weather forecastRillito, AZ
Climate and monthly weather forecast
Weather in January
January, the same as December, is another enjoyable winter month in Rillito, Arizona, with an average temperature ranging between min 44.8°F (7.1°C) and max 63°F (17.2°C). The arrival of January coincides with an average high-temperature of a still enjoyable 63°F (17.2°C), indicating a minimal shift from December's 61.9°F (16.6°C). Weather in January »Weather in February
February, the last month of the winter in Rillito, is another refreshing month, with an average temperature varying between 65.5°F (18.6°C) and 46.6°F (8.1°C). February begins with an average high-temperature of a still comfortable 65.5°F (18.6°C), reflecting close similarity to the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a pleasant month in Rillito, Arizona, with an average temperature varying between 52.3°F (11.3°C) and 73°F (22.8°C). A subtle rise in the average high-temperature is observed during March, adjusting from a comfortable 65.5°F (18.6°C) in February to a pleasant 73°F (22.8°C). Weather in March »Weather in April
April is a moderately hot spring month in Rillito, Arizona, with an average temperature varying between 56.3°F (13.5°C) and 80.2°F (26.8°C). With the onset of April, the average high-temperature subtly transitions from a pleasant 73°F (22.8°C) in March to a moderately hot 80.2°F (26.8°C). Weather in April »Weather in May
The last month of the spring, May, is a hot month in Rillito, Arizona, with an average temperature varying between 62.6°F (17°C) and 88°F (31.1°C). With the onset of May, Rillito observes a minor temperature ascent, with the average high-temperature adjusting from April's warm 80.2°F (26.8°C) to a hot 88°F (31.1°C). Weather in May »Weather in June
The first month of the summer, June, is a torrid month in Rillito, Arizona, with temperature in the range of an average high of 99°F (37.2°C) and an average low of 72.1°F (22.3°C). June, with its average high-temperature of 99°F (37.2°C) and an average low-temperature of 72.1°F (22.3°C), holds the record as the warmest month. With an average relative humidity of 18%, June is the least humid month. Weather in June »Weather in July
July, the same as June, is another sweltering summer month in Rillito, Arizona, with an average temperature varying between 97.5°F (36.4°C) and 79.3°F (26.3°C). The shift from June to July is characterized by an average high-temperature of a still torrid 97.5°F (36.4°C), not significantly different from the 99°F (37.2°C) of June. Weather in July »Weather in August
August, the last month of the summer in Rillito, is also a sweltering month, with temperature in the range of an average high of 97°F (36.1°C) and an average low of 79.7°F (26.5°C). Rillito's August showcases an average high-temperature of a still very hot 97°F (36.1°C), hardly distinct from July's 97.5°F (36.4°C). Weather in August »Weather in September
September, the first month of the autumn in Rillito, is still a hot month, with an average temperature fluctuating between 74.1°F (23.4°C) and 91.9°F (33.3°C). September denotes a minimal variation in the average high-temperature to a tropical 91.9°F (33.3°C) from August's 97°F (36.1°C). Weather in September »Weather in October
October, like September, in Rillito, Arizona, is another warm autumn month, with an average temperature ranging between max 83.1°F (28.4°C) and min 63°F (17.2°C). A modest decline in the average high-temperature is seen during October, decreasing from a tropical 91.9°F (33.3°C) in September to a moderately hot 83.1°F (28.4°C). Weather in October »Weather in November
November, the last month of the autumn in Rillito, is another pleasant month, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 72.3°F (22.4°C). In November, the meteorological conditions alter, with the average high-temperature shifting from a warm 83.1°F (28.4°C) in October to an agreeable 72.3°F (22.4°C). Weather in November »Weather in December
The first month of the winter, December, is still a comfortable month in Rillito, Arizona, with an average temperature ranging between min 44.6°F (7°C) and max 61.9°F (16.6°C). December, known for its average high temperature of 61.9°F (16.6°C) and an average low temperature of 44.6°F (7°C), is the coldest month. Weather in December »Updated: Feb 9, 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
Throughout the year, in Rillito, Arizona, there are 71.5 rainfall days, and 9.72" (247mm) of precipitation is accumulated.
The months with the least rainfall in Rillito are April and May Rain falls for 2.7 days and accumulates 0.2" (5mm) of rain.
June, known for its average high temperature of 99°F (37.2°C) and an average low temperature of 72.1°F (22.3°C), is the warmest month in Rillito, Arizona.
June is the least humid month in Rillito, Arizona, with an average relative humidity of 18%.
With an average of 14h and 12min of daylight, June has the longest days of the year in Rillito, Arizona.
The months with the highest UV index are June through August, with an average maximum UV index of 8.
The month with the most rainfall is August, when the rain falls for 12.7 days and typically aggregates up to 1.77" (45mm) of precipitation.
With an average of 12.2h of sunshine, August has the most sunshine of the year in Rillito.
December, noted for its average high-temperature of 61.9°F (16.6°C) and an average low-temperature of 44.6°F (7°C), is considered the coldest month in Rillito.
The most humid month is December, with an average relative humidity of 45%.
December has the shortest days of the year in Rillito, Arizona, with an average of 10h and 6min of daylight.
Rillito does not observe Daylight Saving Time (DST). MST timezone is used over the entire year.
With an average of 6.8h of sunshine, December has the least sunshine of the year in Rillito, Arizona.
December is the month with the lowest UV index in Rillito, Arizona, with an average maximum UV index of 3.
Average temperature
Rillito, AZ
The warmest month (with the highest average high temperature) is June (99°F).
The month with the lowest average high temperature is December (61.9°F).
The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is December (44.6°F).
Average pressure
Rillito, AZ
- Average pressure in January:
30.07"Hg - Average pressure in February:
30.01"Hg - Average pressure in March:
29.97"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:
29.87"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:
30.04"Hg
The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).
Average wind speed
Rillito, AZ
- Average wind speed in January:
5.5mph - Average wind speed in February:
5.9mph - Average wind speed in March:
6.7mph - Average wind speed in April:
7.9mph - Average wind speed in May:
7.9mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
5.6mph - Average wind speed in September:
5.9mph - Average wind speed in October:
6mph - Average wind speed in November:
6mph - Average wind speed in December:
5.5mph
The windiest months (with the highest average wind speed) are April and May (7.9mph).
The calmest months (with the lowest average wind speed) are January and December (5.5mph).
Average humidity
Rillito, AZ
The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (18%).
Average rainfall
Rillito, AZ
- Average rainfall in January:
0.79" - Average rainfall in February:
0.83" - Average rainfall in March:
0.59" - Average rainfall in April:
0.2" - Average rainfall in May:
0.2" - Average rainfall in June:
0.24"
- Average rainfall in July:
1.69" - Average rainfall in August:
1.77" - Average rainfall in September:
1.34" - Average rainfall in October:
0.63" - Average rainfall in November:
0.59" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is August (1.77").
The driest months (with the least rainfall) are April and May (0.2").
Average rainfall days
Rillito, AZ
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
4.3 days - Average rainfall days in April:
2.7 days - Average rainfall days in May:
2.4 days - Average rainfall days in June:
3.2 days
- Average rainfall days in July:
13.8 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
9.6 days - Average rainfall days in October:
4.2 days - Average rainfall days in November:
3 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is July (13.8 days).
The month with the least rainy days is May (2.4 days).
Average daylight / Average sunshine
Rillito, AZ
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 12min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 6min
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 0min - Average sunshine in February:
9h and 0min - Average sunshine in March:
9h and 12min - Average sunshine in April:
10h and 54min - Average sunshine in May:
11h and 54min - Average sunshine in June:
12h and 6min
- Average sunshine in July:
12h and 0min - Average sunshine in August:
12h and 12min - Average sunshine in September:
9h and 36min - Average sunshine in October:
8h and 0min - Average sunshine in November:
7h and 18min - Average sunshine in December:
6h and 48min
The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days
Rillito, AZ
- Average sunshine days in January:
25.8 days - Average sunshine days in February:
23.2 days - Average sunshine days in March:
26.9 days - Average sunshine days in April:
27.3 days - Average sunshine days in May:
28.2 days - Average sunshine days in June:
25.4 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
13.6 days - Average sunshine days in September:
18 days - Average sunshine days in October:
25.7 days - Average sunshine days in November:
25.7 days - Average sunshine days in December:
24.2 days
The month with the most sunshine days is May (28.2 days).
The month with the least sunshine days is July (13 days).
Average UV index
Rillito, AZ
The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover
Rillito, AZ
The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility
Rillito, 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).
